{"title":"Glass \u0026 visibility by Dr. Wack","description":null,"products":[{"product_id":"dr-wack-a1-all-in-one-innenraumreiniger-glasreiniger","title":"A1 \"ALL in ONE\" Interior \u0026 Glass Cleaner","description":"\u003ch2 id=\"speakable-headline\"\u003eA1 ALL in ONE Interior \u0026amp; Glass Cleaner does the dash and the glass without leaving streaks\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eWhat is the A1 ALL in ONE Interior \u0026amp; Glass Cleaner? A ready-to-use interior cleaner from Dr. Wack, set slightly acidic at pH 5.5, that works on glass, screens, dash, fabric, Alcantara, leather and piano black. Not a degreaser for heavy grease films, and no substitute for a dedicated upholstery cleaner.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eA1 ALL in ONE Interior \u0026amp; Glass Cleaner\u003c\/strong\u003e is a ready-to-use interior cleaner from Dr. Wack that pulls eight material groups onto a single approval list: glass inside and out, screens, plastic and dash, fabric and upholstery, Alcantara, leather and synthetic leather, paint and piano black, plus vinyl. Nothing gets diluted and there is no dwell time. The cloth does the dosing.\u003c\/p\u003e\n\n\u003cp\u003eThere are six different materials between the steering wheel and the windscreen, and every one of them reacts differently to the same cleaner. An alkaline all-purpose cleaner gets the footwell clean and, over time, eats into the topcoat on a leather seat back. On glass it leaves exactly the haze you set out to wipe off. That is why three bottles stand side by side in so many boots, all-purpose cleaner, glass cleaner and plastic dressing, and why the interior still gets left longer than the paint.\u003c\/p\u003e\n\n\u003cp\u003eWhy one bottle is enough here is on the safety data sheet, not on the front label: pH 5.5 at 20 °C, measured to DIN 19268. That sits slightly on the acidic side, roughly where shower gel is set, and so on the other side of neutral from the alkaline all-purpose cleaners the scene calls APC. For you that means the same bottle that just did the side window can go onto the leather seat bolster without a second thought.\u003c\/p\u003e\n\n\u003cp\u003eDr. Wack names two additives outright: an antistatic finish and a built-in odour killer. Antistatic means the ultra-thin layer left behind bleeds off the charge that builds on plastic while you wipe. Without it, a freshly wiped dashboard pulls dust in like a balloon you have just rubbed on your sleeve. Day-to-day: the dash dusts over later instead of straight away. There is no number on the effect, though, since neither the manufacturer's page nor the data sheet commits to a figure.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEight material groups on one approval list.\u003c\/strong\u003e Glass inside and out, screens, plastic and dash, fabric and upholstery, Alcantara, leather and synthetic leather, paint and piano black, vinyl. Reading the label before you touch the next surface drops out of the job for the whole cabin. The outside glass is explicitly on the list too, which is rare for an interior cleaner.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003epH 5.5 instead of alkaline.\u003c\/strong\u003e The safety data sheet quotes 5.5 plus\/minus 0.2 at 20 °C to DIN 19268. Slightly acidic rather than alkaline is why leather, Alcantara and piano black are allowed on the same list as the glass. And it is the same reason the product is not a degreaser.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree sizes, three jobs.\u003c\/strong\u003e 100 ml for the glovebox, 500 ml with a trigger head for the shelf, 750 ml as the Limited Edition 2025. Per litre, the 750 ml bottle works out at less than a third of the 100 ml one. With the small bottle you pay for where it fits, not for what is in it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e What we see a lot is Alcantara getting treated like ordinary cloth: spray it on, scrub hard, done. Dr. Wack specifies the opposite for Alcantara, namely straight onto the spot, no dwell time, light pressure, no rubbing. The reason is mechanical: scrub it and the pile of the microfibre suede lies down one way and picks up shiny patches that no cleaner brings back. Work in dabs, turn the cloth often, and lift the pile again at the end by going across it with the dry side.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eOnly the glass gets sprayed directly, everything else goes through the cloth\u003c\/h3\u003e\n\n\u003cp\u003eThree groups of surface, three ways to spray: glass takes the jet, plastic and screens take it via the cloth, fabric gets it spot-on onto the mark.\u003c\/p\u003e\n\n\u003cp\u003eThe bottle wants a shake before the first pull of the trigger, and the nozzle has to be turned from Stop to Spray. For the glass you spray straight onto the pane, clean with a waffle-weave or glass cloth, then run a dry side of the cloth over the already dry pane. That second, dry pass is what decides whether you get streaks, and it is the one people skip most often.\u003c\/p\u003e\n\n\u003cp\u003eScreens, dash, piano black and painted trim never get the product straight on. There you spray into the microfibre cloth and work the surface with that, following up with a dry side if it needs it. The reason is not the chemistry, it is the seam: overspray that lands on a screen runs into the gap between glass and trim and sits there, where you can no longer reach it.\u003c\/p\u003e\n\n\u003cp\u003eFabric, upholstery and Alcantara are the third case. Here the product goes straight onto the dirty spot again, no dwell time and light pressure, because you want the loosened mark to travel up out of the weave into the cloth and not deeper in. On Alcantara the rule from the tip above applies on top of that.\u003c\/p\u003e\n\n\u003cp\u003eWhether the glass ends up streak-free comes down to the pile and to whatever was in that cloth before. Dr. Wack puts its own \u003ca href=\"\/products\/dr-wack-a1-all-in-one-mikrofasertuch-mikrofasertuch\"\u003emicrofibre cloth\u003c\/a\u003e alongside the product, matched to the way it works and with overlocked edges so nothing scratches on screens or piano black. Still keep your cloths sorted by surface: one that has seen plastic dressing carries silicone into the glass and wrecks every dry pass you make.\u003c\/p\u003e\n\n\u003cp\u003eThe order inside the car sounds obvious and still gets done wrong: headliner and dash first, then door cards, then seats, glass last. Start with the windscreen and you wipe it twice, because dusting the dashboard puts dust and overspray straight back onto it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-a1-all-in-one-innenraumreiniger-glasreiniger_anwendung.jpg?v=1787867745\u0026amp;width=1400\" alt=\"A1 ALL in ONE Interior \u0026amp; Glass Cleaner being sprayed onto the microfibre cloth in front of the steering wheel\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:4px;\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eGrease films and old upholstery stains are not its patch\u003c\/h3\u003e\n\n\u003cp\u003eThe cleaner works with no dwell time, and whatever does not go into solution in that second will not come off on the third wipe either.\u003c\/p\u003e\n\n\u003cp\u003epH 5.5 is the strength of this product and its limit at the same time. A film of smoke, chip fat or years of hand sweat on the centre console needs an alkaline cleaner that turns the fatty acids into soap and makes them water-soluble. A slightly acidic interior cleaner cannot do that, however many passes you make. If the cloth still comes up brown after the third pass, it is the wrong cleaner and not too little pressure.\u003c\/p\u003e\n\n\u003cp\u003eThe second blind spot is the upholstery. Fresh coffee on a seat comes away cleanly with the Interior \u0026amp; Glass Cleaner. A stain that has sat in the weave for three weeks needs dwell time, foam and a tool with bristles. For that, the same line carries the \u003ca href=\"\/products\/dr-wack-a1-polster-alcantara-reiniger-pro-textilreiniger\"\u003eupholstery and Alcantara cleaner\u003c\/a\u003e as the specialist. Fresh, take the all-rounder. Dried in, take the specialist.\u003c\/p\u003e\n\n\u003cp\u003eThe third limit sits in the word cleaner. Cleaning and conditioning are two steps, and this product only does the first. On leather it lifts the hand grime off the topcoat but gives back neither suppleness nor protection, and on plastic it leaves no care layer with UV protection. If you want deep black on the dashboard after the wipe, you need a plastic dressing afterwards.\u003c\/p\u003e\n\n\u003cp\u003eThe fourth limit is on the glass. As a glass cleaner the product gets the pane clean and streak-free, it does not seal it. Nothing repels water afterwards, there is no beading and no rain-repellent effect, that is a glass sealant's job. The approval for outside glass means cleaning: bug splatter that has stood in the sun for two days is still a case for a bug remover.\u003c\/p\u003e\n\n\u003cp\u003eThe fifth limit is not a material limit but a handling one, and it is up in the tip above. That leaves the honest frame: eight material groups, mild chemistry, no heavy lifting. A decathlete does not win the 100 metres, and that is exactly what this product is inside the car.\u003c\/p\u003e\n\n\u003ch3\u003eDo the interior every couple of weeks and you do not need five bottles\u003c\/h3\u003e\n\n\u003cp\u003eAs an interior cleaner the product earns its place with anyone who does the cabin regularly in one pass and does not want to swap between four bottles while doing it.\u003c\/p\u003e\n\n\u003cp\u003eIt makes less sense if you set aside one deep clean a year. What you are missing then is a vacuum first and a cleaner with dwell time second, not an all-rounder. And if you detail for a living, a concentrate plus your own fabric chemistry gets you further for less.\u003c\/p\u003e\n\n\u003cp\u003eDr. Wack splits the sizes cleanly. The 500 ml bottle with the trigger head is the version for the shelf, the 750 ml of the Limited Edition 2025 is the same formula with more in it. The safety data sheet for the A1 ALL in ONE Interior \u0026amp; Glass Cleaner lists all three part numbers together. The 100 ml bottle is not a budget version, it is a decision about where it lives: glovebox, company car, fingerprint on the screen before a meeting.\u003c\/p\u003e\n\n\u003cp\u003eOn the shelf the product stands between two camps. On one side the alkaline all-purpose cleaners, which have more power and ask for more care. On the other the specialists for one surface each, from a pure glass cleaner to a fabric foam. What else is lined up next to it is in the \u003ca href=\"\/collections\/innenraumreiniger\"\u003einterior cleaner\u003c\/a\u003e category. This product is the answer there to the question about the one bottle.\u003c\/p\u003e\n\n\u003cp\u003eOn storage the safety data sheet says two things: keep it from freezing and store it away from food. So the 100 ml bottle belongs in the glovebox and not in an unheated store room over winter. The product is built in Baar-Ebenhausen, where Dr. Wack has had development, production and logistics on one site since the 2024 new build.\u003c\/p\u003e\n\n\u003cp\u003eThe trick no manufacturer writes down costs nothing and saves you the second lap: wipe the glass horizontally on the inside and vertically on the outside. If a streak is left standing, its direction tells you which side it is on. Horizontal means inside, vertical means outside. Because this product is approved for both sides, you make both passes with the same bottle and do not have to guess while you walk round the car three times.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-a1-all-in-one-innenraumreiniger-glasreiniger_anwendung_2.jpg?v=1787867749\u0026amp;width=1400\" alt=\"Bottle of A1 ALL in ONE Interior \u0026amp; Glass Cleaner next to the folded microfibre cloth inside the car\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:4px;\"\u003e\u003c\/p\u003e","brand":"Dr. Wack \"A1\"","offers":[{"title":"500ml","offer_id":54707180208463,"sku":"D1-DRW-2570","price":13.99,"currency_code":"EUR","in_stock":true},{"title":"100 ml","offer_id":58584739119439,"sku":"D1-DRW-2571","price":6.99,"currency_code":"EUR","in_stock":true},{"title":"750 ml (Limited Edition 2025)","offer_id":54731389632847,"sku":"D1-DRW-2573","price":15.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-a1-all-in-one-innenraumreiniger-glasreiniger.png?v=1787867102"},{"product_id":"dr-wack-a1-all-in-one-mikrofasertuch-mikrofasertuch","title":"A1 \"ALL in ONE\" Microfibre Cloth","description":"\u003ch2 id=\"speakable-headline\"\u003eOne A1 \"ALL in ONE\" Microfibre Cloth covers every surface in the cabin\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eWhat is the A1 \"ALL in ONE\" Microfibre Cloth? A flat-weave working cloth made of 80 percent polyester and 20 percent polyamide with an overlocked edge, approved by the manufacturer for glass, displays, dashboard, upholstery, Alcantara, leather, piano black and vinyl. Not meant for wax on paint, for drying the car or for coated displays.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eA1 \"ALL in ONE\" Microfibre Cloth\u003c\/strong\u003e is the working cloth of the A1 range from Dr. Wack in Baar-Ebenhausen. It has exactly one job: to lift the sprayed-on cleaner and the loosened film back off the surface instead of spreading it around. It's listed as the recommended accessory in the product information sheet for the A1 \"ALL in ONE\" interior \u0026amp; glass cleaner. Cleaner and cloth were developed as a pair.\u003c\/p\u003e\n\n\u003cp\u003eMicrofibre is a measure of fineness, not a brand name. A thread counts as microfibre below one decitex, meaning ten thousand metres of it weigh less than a gram; 0.3 to 0.8 is typical. For comparison, silk sits at 1.3 and cotton at 1.5 to 2.5.\u003c\/p\u003e\n\n\u003cp\u003eSo under the same palm there are many times more fibre ends touching the glass, and each one draws liquid into the gaps by capillary action. Day to day, that means the loosened film travels up into the weave instead of running ahead of the fibre.\u003c\/p\u003e\n\n\u003cp\u003eThe blend tells you what this cloth is built for. Polyester provides the edges and tear strength; polyamide is the part that actually takes water into the fibre — around three to four percent of its own weight under standard conditions. Polyester stays well below that. With 20 percent polyamide, the A1 \"ALL in ONE\" Microfibre Cloth deliberately leans to the absorbent side. You'll notice it: it picks the spray mist off the glass instead of leaving it sitting there.\u003c\/p\u003e\n\n\u003cp\u003eOn a flat-weave cloth, the edge is a decision in its own right. Where fabric is simply cut, the threads fray and leave exactly the lint that jumps out at you on freshly cleaned glass. That's why Dr. Wack overlocks the edge and lists it as a product benefit of its own in the information sheet. The seam here isn't cost-cutting, it's what keeps the edge calm.\u003c\/p\u003e\n\n\u003cp\u003eWhy one single construction can handle both glass and Alcantara comes down to the kind of work. Nothing gets cut back in the cabin; you're only picking up a loosened film. The scratch risk isn't decided by the fibre but by what it has loaded up beforehand. Everything further down about order and number of cloths follows from exactly that.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEight surface groups, one construction.\u003c\/strong\u003e The cloth is approved for piano black and painted trim, displays, leather and faux leather, Alcantara, textile and upholstery, dashboard plastic, vinyl, and glass inside and out. Until now, those eight groups meant half a range of specialist cloths in the drawer, each with its own fibre and its own edge.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo to three cloths for a complete interior.\u003c\/strong\u003e For a full clean, Dr. Wack sets out an order across five stations and explicitly recommends two to three cloths for it. A single one won't make it all the way from the displays to the door sills, because it fills up along the way.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAround 300 wash cycles, tumble-dry up to 60 degrees.\u003c\/strong\u003e The manufacturer quotes about 300 washes, allows 60 degrees in the washer and dryer and rules out fabric softener and bleach. Worked out on 9.99 euros, that puts one use at a little over three cents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e We often get questions about streaks on the windscreen that aren't down to the chemistry but to the order. If you do the dashboard first and the glass after, you carry the oils from the plastic dressing onto the glass with the same cloth. Polyester is the oil-loving part of the fibre and only lets go of them in the wash.\u003c\/p\u003e\n  \u003cp\u003eThat's why Dr. Wack sets the order itself: displays, inside glass, outside glass, then dashboard, seats and panels, and last of all door sills and tailgate seams. Mark the glass cloth on one corner and never let it near the dashboard.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eThe glass only goes streak-free on the dry follow-up wipe\u003c\/h3\u003e\n\u003cp\u003eA loosened film that no dry fibre picks up dries back onto the glass as a haze, which is why the same cloth goes over the same area twice. Damp first, then dry.\u003c\/p\u003e\n\u003cp\u003eWhere the cleaner goes depends on the surface. Only glass can take the spray directly; everywhere else the cloth takes the liquid before it touches the surface. That way nothing gets into gaps, switches or air vents.\u003c\/p\u003e\n\u003cp\u003eTextile, upholstery and Alcantara get the cleaner on the stain and are worked with pressure, no dwell time. Same for leather, faux leather and piano black, followed by a dry side. On upholstery it's pressure that counts, not quantity, because the cleaner works without dwell time and the fibre has to carry the loosened dirt away mechanically.\u003c\/p\u003e\n\u003cp\u003eAs soon as there's no dry spot left, the cloth stops working. For that moment, Dr. Wack plans a second cloth instead of wiping on. A soaked cloth no longer picks up film, it drags it across the glass in tracks — and that's exactly what most people blame on the cleaner.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/dr-wack-a1-all-in-one-innenraumreiniger-glasreiniger\"\u003einterior and glass cleaner\u003c\/a\u003e from the same range is the partner this cloth was built for. Both are in the same product information sheet, with the cloth explicitly recommended as the accessory for working it. Combine the two and you're working with the routine the formula was designed around.\u003c\/p\u003e\n\u003cp\u003eWhile the film is still damp, the fibre does the work. Once it's dried on, only the chemistry is working — then pressing harder won't help, but a second spray and a few seconds' patience will. On your first complete run, you'll notice by the outside glass at the latest that the first cloth is full. That's not a beginner's mistake, it's the reason for the two-to-three recommendation.\u003c\/p\u003e\n\n\u003ch3\u003eThe cloth isn't built for wax, drying or wheels\u003c\/h3\u003e\n\u003cp\u003eThe low pile of this cloth is designed for control, not volume, so its remit ends wherever bulk is needed.\u003c\/p\u003e\n\u003cp\u003eWax and polish residue need pile height. They have to disappear into the pile instead of staying between fibre and clear coat, and a flat-weave cloth doesn't have that room. For the final wipe on paint, the same range carries the \u003ca href=\"\/products\/dr-wack-a1-das-tuch-premium-mikrofaser-mikrofasertuch\"\u003edeep-pile premium microfibre cloth\u003c\/a\u003e. Two cloths from one maker, two different jobs.\u003c\/p\u003e\n\u003cp\u003eFor drying the car, it simply lacks the reservoir. After a wash, the roof, bonnet, boot lid and doors hold many times more water than an interior cloth can take. In practice, glass and interior cloths sit at 200 to 400 g\/m², while \u003ca href=\"\/collections\/trockentucher\"\u003edrying towels\u003c\/a\u003e start at around 500 and go past 1,000.\u003c\/p\u003e\n\u003cp\u003eIt stops at the bottom end too. A cloth that's been on wheels, door sills or wheel arches carries grit in its pile — fine, hard particles that end up between fibre and surface. After that it doesn't belong on a display or a piano black trim anymore, no matter how often you wash it.\u003c\/p\u003e\n\u003cp\u003eDr. Wack names one exception itself, and it sits right in the middle of the cabin. On coated displays, for example with an anti-glare layer, the cleaner-and-cloth combo isn't approved; there, the display manufacturer's care instructions apply.\u003c\/p\u003e\n\u003cp\u003eA dried-on film of grease or nicotine isn't a question of the cloth anyway. The fibre carries away what's been loosened, nothing more. Even the antistatic, dust-repelling effect many people credit to the cloth is in the cleaner's data sheet, not the cloth's. The cloth does the handling, the chemistry does the work.\u003c\/p\u003e\n\n\u003ch3\u003eThree cloths per interior isn't a sales trick\u003c\/h3\u003e\n\u003cp\u003eWith just one cloth you'll get stuck somewhere between dashboard and door sill, which is exactly why the product information sheet lists two to three cloths per interior.\u003c\/p\u003e\n\u003cp\u003eFor a rough once-over twice a year, a single cloth is enough, and that's the honest answer if a clean car is all you're after. If you do the whole interior in one go, though, it's three: one for displays and glass, one for dashboard, seats and panels, one for the sills.\u003c\/p\u003e\n\u003cp\u003eIf you buy on specs, here are the key figures straight up: 80 to 20 blend, overlocked edge, washer and dryer up to 60 degrees, no fabric softener or bleach, around 300 cycles, made in Germany. And if you've already got the matching cleaner on the shelf, this is the working cloth designed for it — not the next all-purpose rag from the DIY store.\u003c\/p\u003e\n\u003cp\u003eFor beginners, it's the calmer route. One cloth type for every surface takes away the question of which fibre is allowed on which surface and leaves just one rule: start clean, work in the set order, swap in time. Buy five specialist cloths instead, and you've got five chances to grab the wrong one.\u003c\/p\u003e\n\u003cp\u003eWhat tips the maths in practice isn't wear but what the pile has picked up. A cloth that keeps handling plastic dressing will eventually still be fine for seats and panels, but not for the windscreen anymore. So its usable life is decided by what you assign it to, not by the washing machine.\u003c\/p\u003e\n\u003cp\u003eIn the end, the biggest difference comes from the fold, not the purchase. Fold the cloth once and only ever spray into one half; the other stays dry and is reserved for the follow-up wipe. Stick to that and you'll read the two-to-three recommendation differently: you're not buying cloths, you're buying dry surface. And in a car interior, that always runs out before the fibre does.\u003c\/p\u003e","brand":"Dr. Wack \"A1\"","offers":[{"title":"Hellgrau \/ 1 Stück","offer_id":58086544572751,"sku":"D1-DRW-8001","price":9.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-a1-all-in-one-mikrofasertuch-mikrofasertuch.png?v=1787867138"},{"product_id":"dr-wack-cw1-100-bio-scheiben-reiniger-scheibenreiniger","title":"CW1:100 \"BIO\" screenwash","description":"\u003ch2 id=\"speakable-headline\"\u003eClear view, made mostly from renewable raw materials\u003c\/h2\u003e\n\u003cblockquote id=\"speakable-summary\"\u003e\u003cp\u003e\u003cem\u003eCW1:100 BIO screenwash is a highly concentrated screenwash made from more than 99 percent natural raw materials. It breaks down glare and smear film for a safe view and is gentle on materials. It's not a ready-to-use cleaner and not an antifreeze — you dilute it before filling.\u003c\/em\u003e\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eCW1:100 BIO screenwash\u003c\/strong\u003e is a screenwash concentrate made from more than 99 percent natural and renewable raw materials. You mix it with water and pour it into the washer fluid reservoir. It clears glare and smear film from the windscreen and contains no animal-derived ingredients and no unnecessary synthetic fragrances or dyes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick work of glare and smear film.\u003c\/strong\u003e The concentrate breaks down the film that dazzles you in low sun or against the light in no time. That gets you a clear, low-streak windscreen again — and a safe view in traffic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGoes a long way as a high concentrate.\u003c\/strong\u003e Because you use it diluted, one bottle covers lots of fills. According to the manufacturer, that saves a lot of packaging and transport compared with ready-mixed screenwash in 5 litre canisters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGentle on materials, with anti-limescale formula.\u003c\/strong\u003e Mild ingredients make it well tolerated and extend the life of your wiper blades. The anti-limescale formula prevents deposits in the reservoir and clogged jets, even with hard water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cblockquote class=\"praxistipp\"\u003e\u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e The most common mistake is pouring the concentrate in neat or under-dosed and then wondering about the streaks. Stick to the mixing ratio on the bottle, and if the reservoir is old and grubby, flush it once with clean water before refilling. That way you actually get the cleaning power you paid for.\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cp\u003eMix the concentrate with water at the stated ratio and pour the finished solution into the washer fluid reservoir. Thanks to the anti-limescale formula, you can use hard tap water too, without worrying about deposits or clogged jets.\u003c\/p\u003e\n\u003cp\u003eIn winter, combine the concentrate with an antifreeze. The built-in cleaning booster is made for exactly that and boosts the effect in antifreeze screenwash mixes. The product is also suitable for plastic headlight lenses and fan jets.\u003c\/p\u003e\n\u003ch3\u003eLimits\u003c\/h3\u003e\n\u003cp\u003eCW1:100 BIO screenwash is a concentrate, not a ready-to-use product. Without diluting and dosing it properly, you won't get its full performance. It's also not an antifreeze on its own: for winter use, you have to combine it with a suitable antifreeze. For heavily crusted glass or bug remains that have already dried on, cleaning by hand first still makes sense.\u003c\/p\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eThe concentrate suits drivers who care about a clear view while keeping packaging, transport and synthetic additives to a minimum. If you'd rather buy concentrates that go a long way than ready-mixed canisters anyway, and you pay attention to material compatibility, this is the one for you.\u003c\/p\u003e","brand":"Dr. Wack \"CW1:100\"","offers":[{"title":"250ml","offer_id":54707199869263,"sku":"D1-DRW-1760","price":15.99,"currency_code":"EUR","in_stock":true},{"title":"40 ml","offer_id":58086101221711,"sku":"D1-DRW-1761","price":4.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-bio-scheiben-reiniger-scheibenreiniger.png?v=1787867402"},{"product_id":"dr-wack-cw1-100-classic-scheibenreiniger-scheibenreiniger","title":"CW1:100 \"Classic\" screenwash","description":"\u003ch2 id=\"speakable-headline\"\u003eA clear view from one small bottle\u003c\/h2\u003e\n\u003cblockquote id=\"speakable-summary\"\u003e\u003cp\u003e\u003cem\u003eCW1:100 Classic is a high-yield screenwash concentrate from Dr. Wack. Mixed at 1:200, 250 ml make up to 50 litres of cleaning fluid that clears glare and smear film. It isn't a ready-to-use screenwash and contains no antifreeze.\u003c\/em\u003e\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eCW1:100 Classic\u003c\/strong\u003e is a highly dilutable cleaning concentrate for the windscreen washer system. You mix it with water and pour it into the reservoir, where it lifts bug residue, dust and the typical glare film off the windscreen. On paper, the compact 250 ml bottle replaces about 20 bottles of ready-to-use screenwash, saving space and packaging.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGoes a long way.\u003c\/strong\u003e Mixed at 1:200, 250 ml of concentrate make up to 50 litres of cleaning fluid. One bottle lasts for plenty of top-ups, and you don't have to lug heavy jerry cans around in the car.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTackles glare and smear film.\u003c\/strong\u003e The cleaner dissolves the thin film of exhaust fumes, pollen and road dust that dazzles you against the light. The screen comes up clear again instead of just getting wet for a moment and smearing all over again.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKind to materials.\u003c\/strong\u003e The formula is suitable for plastic headlight lenses and fan jets. It doesn't attack these parts and can extend the life of your wiper rubbers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cblockquote class=\"praxistipp\"\u003e\u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e The most common mistake is overdosing in the hope of more cleaning power. Too much concentrate leaves streaks and takes several wipes before the screen is clear again. Stick to 1:200 and only go slightly stronger when there's visibly heavy glare film; you'll get a cleaner result and the bottle lasts longer.\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cp\u003eMix the concentrate with water at 1:200 and pour it into the washer reservoir; then every press of the washer cleans screen and headlights in one go.\u003c\/p\u003e\n\u003cp\u003eFor normal dosing, that's about 1.25 ml of concentrate to 250 ml of water. With stubborn glare film you can go slightly stronger. After the first fill, give the jets a quick flush so the film lifts evenly and the wipers glide cleanly from the start.\u003c\/p\u003e\n\u003cp\u003eWe've mixed the concentrate at our Nordhorn warehouse for hard-worked windscreens. In practice it pays to keep a small pre-mixed reserve in the boot rather than fiddling with neat concentrate on the road.\u003c\/p\u003e\n\u003ch3\u003eLimits\u003c\/h3\u003e\n\u003cp\u003eCW1:100 Classic is a pure cleaning concentrate and contains no antifreeze. In winter you need to add an antifreeze as well, otherwise the system can freeze. Nor does it replace a thorough hand or glass clean for stuck-on deposits like baked-on bugs or tar; for those, you're better off cleaning the screen directly with a cloth and a suitable glass cleaner.\u003c\/p\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eThe concentrate suits anyone who wants to top up their screenwash economically, compactly and gently on materials, from everyday drivers to thorough DIY detailers. If a clear view without glare film matters to you and you'd rather not haul heavy ready-mix bottles, CW1:100 Classic is spot on.\u003c\/p\u003e","brand":"Dr. Wack \"CW1:100\"","offers":[{"title":"250ml","offer_id":54707200557391,"sku":"D1-DRW-1710","price":12.99,"currency_code":"EUR","in_stock":true},{"title":"25ml","offer_id":54707200590159,"sku":"D1-DRW-1720","price":3.99,"currency_code":"EUR","in_stock":true},{"title":"5 Liter","offer_id":54707200622927,"sku":"D1-DRW-1730","price":103.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-classic-scheibenreiniger-scheibenreiniger.png?v=1787867417"},{"product_id":"dr-wack-cw1-100-insekten-entferner-gel-insektenentferner","title":"CW1:100 \"Insect Remover Gel\" insect remover","description":"\u003ch2 id=\"speakable-headline\"\u003eThe CW1:100 \"Insect Remover Gel\" lifts baked-on bugs without scrubbing\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eWhat is the CW1:100 \"Insect Remover Gel\"? A ready-to-use bug remover in gel form for the windscreen, headlights and the whole front end of a car. It stays put on vertical surfaces instead of running off. Not meant for the washer fluid, not for direct sun or hot surfaces, and not for bare aluminium without a spot test.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eCW1:100 \"Insect Remover Gel\"\u003c\/strong\u003e is a ready-to-use bug remover from Dr. Wack that loosens dried-on bug residue before you rinse it off. Bug residue is protein: on impact the body bursts, the water in it evaporates, and what's left is a protein layer that keys into the surface as it dries. That bond is exactly what the gel goes after.\u003c\/p\u003e\n\n\u003cp\u003eDenaturing is what happens to the protein here: it loses its folded shape and tangles into a hard, water-insoluble layer. The same thing happens to a fried egg, only this time on your clear coat. And just like with the fried egg: the hotter the surface and the longer it sits, the harder the residue sticks.\u003c\/p\u003e\n\n\u003cp\u003eAnionic surfactants and phosphates undo exactly that bond. They swell the tangled proteins and work their way between residue and surface until the grip lets go. You notice it because what looked glued on before runs off with the water when you rinse, without a towel having to go over it. And on a front covered in hard residue, rubbing is exactly the step that puts the swirls in.\u003c\/p\u003e\n\n\u003cp\u003eStill, the real trick isn't the chemistry, it's the consistency. A liquid cleaner runs down a raked windscreen in seconds and ends up in the scuttle panel instead of on the spot. The gel stays put like a damp compress: where it belongs, for as long as the reaction needs. In practice that means there's any dwell time at all on glass and bumpers in the first place.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCling time on the vertical.\u003c\/strong\u003e AUTO ZEITUNG tested all nine candidates in its bug remover test with a uniform 3 minutes of dwell time. Three minutes on an upright windscreen isn't a given, it's a material property. The gel has it, and that's exactly what took it to second place out of nine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOne bottle for seven parts.\u003c\/strong\u003e In the product information sheet Dr. Wack approves the windscreen, bonnet, grille, bumper, headlights, plastic headlight lenses and door mirrors, and adds guaranteed paint-safe. You don't switch products between glass, clear coat and textured plastic.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree sizes, three situations.\u003c\/strong\u003e The small 100 ml bottle is 15.6 cm tall and fits in any glovebox; the big 750 ml one measures 25.0 cm and belongs on the shelf. In between sits 500 ml as the standard size for one summer season with one car.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e We often see fronts that are spotless and still smear at the first rain. The cause isn't on the glass, it's on the wiper blade. That's where the same residue gets pressed in with every wipe cycle and hardens, and at the first rain the blade drags it across the fresh screen. So wipe both wiper blades with a cloth damp with gel before you rinse. Two wipers, two passes, twenty seconds.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eThe dwell time isn't on the bottle. Three minutes works.\u003c\/h3\u003e\n\n\u003cp\u003eIn the product information sheet Dr. Wack only says leave briefly to act and deliberately gives no number of minutes. AUTO ZEITUNG tested with 3 minutes and put the gel in second place. That's the reliable guide value.\u003c\/p\u003e\n\n\u003cp\u003eThe open instruction has a practical reason: how long it takes depends on how long the residue has been sitting. Freshly splattered bugs in summer still come off with water and a wet sponge after one night. After about forty-eight hours the protein layer has hardened and keyed into the clear coat so far that it won't go without chemistry. If the car was parked in blazing sun meanwhile, that window halves.\u003c\/p\u003e\n\n\u003cp\u003eSo with bug residue, time is the real active ingredient, twice over: once the time the residue has already been on the paint, and once the time the cleaner stays on it. The first you can only shorten by not waiting. The second is what the gel consistency buys you.\u003c\/p\u003e\n\n\u003cp\u003eThe routine itself is short. Turn the nozzle to spray, shake the bottle, apply the gel generously across the cool front instead of misting it. Going easy on the spray is false economy here, because the reaction needs liquid and a film that's too thin dries on within minutes.\u003c\/p\u003e\n\n\u003cp\u003eLeave it briefly, then rinse thoroughly with water and only then wash. For crusts that stay put, the product information sheet is clear about what to do: a sponge to help, wet, no pressure and no circular motion. A second application always beats waiting longer, because a gel that's drying on doesn't dissolve anything any more and just costs you an extra rinse.\u003c\/p\u003e\n\n\u003cp\u003eFinally, turn the nozzle back to stop. That's the leak protection, and anyone who keeps the bottle in the boot or door pocket knows after the first time why that setting exists.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-insekten-entferner-gel-insektenentferner_anwendung.jpg?v=1787867936\u0026amp;width=1400\" alt=\"CW1:100 Insect Remover Gel being sprayed onto bonnet and headlights\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:4px;\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe test praises the cling and criticises the consumption\u003c\/h3\u003e\n\n\u003cp\u003eIn AUTO ZEITUNG's bug remover test from August 2025, the gel scored 77 out of 100 points and the seal Highly recommended. Praised were speed, thoroughness and the drip-free cling; criticised were the strong smell and high consumption.\u003c\/p\u003e\n\n\u003cp\u003eBoth criticisms are the flip side of the same property. Whatever stays on the vertical instead of running off also isn't spread thin, it's laid on thick. If you want to get a whole front wet, with screen, bonnet and bumper, the 500 ml bottle empties faster than you'd think. With two or three fronts per summer you won't notice; with weekly long-distance driving you will. Then 750 ml is the sensible size.\u003c\/p\u003e\n\n\u003cp\u003eTwo limits come from the product information sheet and aren't a formality. Don't use in direct sun or on hot surfaces: after two hundred kilometres of motorway, a dark bonnet is a lot warmer than the ambient air, and on a surface like that the gel dries on before it can swell the proteins.\u003c\/p\u003e\n\n\u003cp\u003eThe second limit concerns bare, unprotected aluminium, such as unpainted trim strips or polished parts. There, a test on an inconspicuous spot comes first. On painted, glazed and textured plastic surfaces, on the other hand, the manufacturer's approval applies without restriction.\u003c\/p\u003e\n\n\u003cp\u003eAnd the practical limit: the gel is designed for protein. Tree sap and tar aren't protein, and it won't help against them. If only the front is plastered with bugs after the motorway, this gel is the right tool. If sap from the roof, tar on the sills and a tired wax layer come on top, you're better off reaching for the \u003ca href=\"\/products\/dr-wack-a1-all-in-one-intensivreiniger-aussen-intensivreiniger\"\u003eheavy-duty cleaner for the pre-wash\u003c\/a\u003e, which clears the whole organic range. More alternatives are in the \u003ca href=\"\/collections\/insektenentferner\"\u003ebug removers\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eThe wiper reaches the screen. The gel reaches the rest of the front.\u003c\/h3\u003e\n\n\u003cp\u003eThe CW1:100 \"Insect Remover Gel\" is the only cleaner in its line that doesn't go into the washer fluid. The four screenwashes work from the inside via the washer system while you drive. This gel works from the outside, parked, right on the spot.\u003c\/p\u003e\n\n\u003cp\u003eThe division of labour is clean and answers the question of when you need what. If you're on the road and a smeary film builds up in the wiper area, a \u003ca href=\"\/products\/dr-wack-cw1-100-super-scheibenreiniger-scheibenreiniger\"\u003escreenwash concentrate for the washer fluid\u003c\/a\u003e belongs in the reservoir. It keeps your view clear, loosens fresh residue and prevents glare film against the light.\u003c\/p\u003e\n\n\u003cp\u003eIf, on the other hand, you're parked and the residue is hard, the gel comes in. The wiper reaches a rectangle on the screen, nothing in front of it and nothing beside it. No washer fluid in the world gets to the grille, the headlights or the mirror base. Together the two cover the front; on their own, each leaves half behind.\u003c\/p\u003e\n\n\u003cp\u003eThe difference shows after the first long night drive. In the wiper area the screen is streaky but see-through, because fresh washer fluid lands there every few minutes. Just above it, beyond the wiper sweep, the bug layer sits untouched, and the same layer covers the bonnet, grille and headlight glass. Those zones are the gel's turf.\u003c\/p\u003e\n\n\u003cp\u003eThat makes the gel for anyone who puts the miles in during summer and doesn't want to leave the front for weeks: country-road commuters, holiday drivers, motorhome and trailer use. As a pre-cleaner before the car wash it's half the battle, because otherwise the brushes push exactly the hard residue across the paint that they can't do anything about. If you drive your car in the winter half of the year and leave it parked in summer, you simply don't need it.\u003c\/p\u003e\n\n\u003cp\u003eOne last detail that says more about the manufacturer than any product description: on the product information sheet for this gel, right next to the application notes, there's a refund condition. Bottle at least two-thirds full, sent back with sufficient postage, receipt enclosed, address Baar-Ebenhausen. A manufacturer that prints its own return address on the data sheet has done the maths on how often the bottle comes back.\u003c\/p\u003e","brand":"Dr. Wack \"CW1:100\"","offers":[{"title":"750ml","offer_id":54707201016143,"sku":"D1-DRW-1799","price":15.99,"currency_code":"EUR","in_stock":true},{"title":"500ml","offer_id":54707201048911,"sku":"D1-DRW-1792","price":12.99,"currency_code":"EUR","in_stock":true},{"title":"100 ml","offer_id":58086101549391,"sku":"D1-DRW-1793","price":6.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-insekten-entferner-gel-insektenentferner.png?v=1787867448"},{"product_id":"dr-wack-cw1-100-super-scheibenreiniger-scheibenreiniger","title":"CW1:100 \"Super\" screenwash concentrate","description":"\u003ch2 id=\"speakable-headline\"\u003eCW1:100 \"Super\" screenwash breaks down smear film — as long as you get the dose right\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eWhat is CW1:100 \"Super\"? A screenwash concentrate from Dr. Wack that goes into your washer water at 1 to 100 and lifts glare and smear film off the windscreen. Developed for windscreen washer systems and headlight washers. Not an antifreeze: it doesn't lower the freezing point.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eDr. Wack CW1:100 \"Super\" screenwash\u003c\/strong\u003e is a concentrate for the windscreen washer system that you dilute at a ratio of 1 to 100. The 1:100 in the name isn't a model code, it's the recipe on the label. One dosing chamber holds 25 millilitres and makes 2.5 litres of ready-to-use washer fluid, so the 250 millilitre bottle makes 25 litres. That's ten dosing chambers per bottle.\u003c\/p\u003e\n\n\u003cp\u003eThe film it goes after isn't a layer of dust. Bug remains, diesel soot, silicone and wax residue build up on the glass as a milky-looking, water-repellent layer. A glass sealant is water-repellent too, but it's built up evenly — it gives you clean beading. Glare film is the opposite: it scatters incoming light instead of letting it through. You'll notice it when every oncoming car dazzles you at night, even though the wipers just went over the glass.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe mixing ratio is in the product name.\u003c\/strong\u003e With the cap slightly unscrewed, squeeze the lower part of the bottle until the dosing chamber is full — that's the whole measuring system. That turns 250 millilitres into 25 litres of washer fluid, and the 5 litre canister into 500 litres.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe anti-limescale formula keeps the fan jet open.\u003c\/strong\u003e It binds the lime in tap water before it can settle in the nozzle opening. In practice: what doesn't crystallise can't clog the opening either, and the spray pattern stays wide instead of lopsided. Auto Bild gave the Super full marks for material compatibility, 15 out of 15.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIn winter the dose doubles, not the frost protection.\u003c\/strong\u003e For antifreeze mixes, Dr. Wack specifies 1 to 50 — four dosing chambers or 100 millilitres per 5 litres of finished mix. The Super doesn't replace antifreeze, it boosts its cleaning power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e What we see day-to-day: the most common mistake is tipping it into a full reservoir. If you empty the dosing chamber straight into the tank and top up with water, you're not mixing — the concentrate just sits at the bottom. The first sprays foam up over-concentrated, the last ones are almost pure water. In the product information sheet, Dr. Wack recommends mixing the components in a separate container first. Empty 2.5 litre jug, 25 millilitres in, shake, pour — then what you dosed is what reaches the nozzle.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eOne dosing chamber holds 25 millilitres and makes 2.5 litres\u003c\/h3\u003e\n\u003cp\u003eCW1:100 \"Super\" screenwash is dosed at 1 to 100. One dosing chamber holds 25 millilitres of concentrate, making exactly 2.5 litres of ready-to-use fluid for the washer system.\u003c\/p\u003e\n\n\u003cp\u003eDose by feel and you pay twice. Too little concentrate, and the smear film stays as a haze the wipers just spread around. Too much, and the surfactants foam on dry glass, leave streaks and cost you two extra sprays to clear. The dosing chamber takes the guesswork out: unscrew the cap slightly, squeeze the lower part of the bottle until the chamber is full, unscrew the cap, pour in.\u003c\/p\u003e\n\n\u003cp\u003eThe work in the washer water is done by anionic surfactants. These are molecules with one water-loving and one grease-loving end that wedge themselves between the glass and the smear film and lift the film off. For you, that means the wiper doesn't just push the dirt around anymore, it takes it with it. That's exactly why the amount decides the result, not the number of wipes.\u003c\/p\u003e\n\n\u003cp\u003eWith the 40 millilitre single-dose bottle, there's no maths at all. At 1 to 100, 40 millilitres makes 4 litres of washer water, so one dose covers about one reservoir fill on most cars. That bottle lives in the glovebox as a top-up on the road; the bigger pack handles the planned dosing at home.\u003c\/p\u003e\n\n\u003cp\u003eThat the dosing chamber holds exactly 25 millilitres is straight from the product information sheet out of Baar-Ebenhausen. One fill, two and a half litres — that's all the mental arithmetic summer dosing asks of you. In canister format, the same sum looks like this: 5 litres of concentrate make around 500 litres of washer fluid, or 250 litres at winter strength.\u003c\/p\u003e\n\n\u003cp\u003eDr. Wack also says the cleaner extends the life of your wiper blades. There's no way to check that, but the mechanism is plausible: a wiper blade gliding over a loosened film works with less friction than one pushing dry dirt across the glass. The bigger lever, in our view, is never running the blade dry anyway — spray first, then wipe.\u003c\/p\u003e\n\n\u003cp\u003eFrom our own experience: water into the mixing container first, then the concentrate, then shake. The other way round, it foams over when you shake, and whatever ends up in the sink is missing from the tank. What sets the four \u003ca href=\"\/collections\/dr-wack-cw1-100-scheibenreiniger\"\u003escreenwashes in this range\u003c\/a\u003e apart comes down to exactly one number — the mixing ratio.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-super-scheibenreiniger-scheibenreiniger_anwendung.png?v=1787867946\u0026amp;width=1400\" alt=\"Dosing chamber of CW1:100 Super screenwash being emptied into the open washer fluid reservoir\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:4px;\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Super boosts your antifreeze — it can't replace it\u003c\/h3\u003e\n\u003cp\u003eCW1:100 \"Super\" screenwash doesn't lower the freezing point. In winter it goes into a finished antifreeze mix on top, dosed at 1 to 50 instead of 1 to 100.\u003c\/p\u003e\n\n\u003cp\u003eThe order is in the product information sheet and still rarely followed: antifreeze concentrate first, then fresh water, then the Super. Four dosing chambers, i.e. 100 millilitres, per 5 litres of finished antifreeze mix. If you put the cleaner into the empty canister first, it only gets mixed in by chance as you fill up.\u003c\/p\u003e\n\n\u003cp\u003eIt gets expensive with antifreeze concentrates rated down to minus 60 degrees. Those must never meet the Super undiluted. Dr. Wack requires you to dilute the concentrate with fresh water to minus 30 degrees at most first, and only then add the cleaner. The sheet doesn't give a reason. We stick to it anyway, because a clogged washer jet in January is no small thing.\u003c\/p\u003e\n\n\u003cp\u003eThe reason tap water is good enough here is the anti-limescale formula. In hard-water areas, calcium is what gradually grows the fine nozzle opening shut over the years. The formula binds it before it can settle — which is why Dr. Wack specifies fresh tap water, not distilled. Day to day, that means you skip the jug from the DIY store and mix at the tap.\u003c\/p\u003e\n\n\u003cp\u003eThe second limit is in front of the windscreen. No washer fluid dissolves dried-on bug shells on the bonnet, grille and headlights, because there's no dwell time — the wiper is on the glass for seconds, not minutes. If the film builds up while you're driving, the Super is the right tool. If the remains dry on while the car is parked, you need an \u003ca href=\"\/products\/dr-wack-cw1-100-insekten-entferner-gel-insektenentferner\"\u003einsect remover that clings as a gel\u003c\/a\u003e on the surface, one that stays put instead of running off.\u003c\/p\u003e\n\n\u003cp\u003eIn issue 22 of 2022, Auto Bild put the Super up against eight other screenwashes. Result: good, grade 2.4, third place out of nine. Full marks of 15 for material compatibility, 56 out of 80 points for pure cleaning power.\u003c\/p\u003e\n\n\u003cp\u003eTranslated: if maximum cleaning power trumps everything for you, there are stronger contenders in the field. If you don't want anything to happen to paint, rubber seals or plastic headlight lenses, you're in the right place — and according to the manufacturer, the formula was developed for exactly those parts.\u003c\/p\u003e\n\n\u003ch3\u003eDose it yourself and you stop paying for water\u003c\/h3\u003e\n\u003cp\u003eA 1:100 concentrate doesn't haul water around. 250 millilitres of CW1:100 \"Super\" screenwash become 25 litres of ready-to-use fluid; the other 24.75 litres come out of the tap at home.\u003c\/p\u003e\n\n\u003cp\u003eWhich pack pays off depends less on the car than on how you drive. If you do lots of motorway miles, you'll empty the washer reservoir much faster in bug season than the rest of the year — that's what the 250 millilitre bottle with dosing chamber is built for. The 40 millilitre single-dose bottle is the glovebox top-up. The 5 litre canister pays off from the second car in the household.\u003c\/p\u003e\n\n\u003cp\u003eA second consumer is listed in the product information sheet and usually gets lost in the windscreen discussion: the headlight washer system. Cars with pop-out washer jets on the headlights draw from the same reservoir. That doesn't change the dosing, but it does change consumption — if you trigger the system regularly in winter, the reservoir empties much faster and you're better off with the canister than the single-dose bottle.\u003c\/p\u003e\n\n\u003cp\u003eIf you want to mix yourself and you've got a tap anyway, the concentrate is the leaner route — on the shelf, in the boot and in the amount of plastic per litre of washer fluid. If you want the canister ready-mixed in the boot because there's no water on the road, grab the \u003ca href=\"\/products\/dr-wack-cw1-100-super-scheibenreiniger-fertig-mix-scheibenreiniger\"\u003eready-to-use pre-mix\u003c\/a\u003e. That's not a ranking, it's a decision about where the water gets added.\u003c\/p\u003e\n\n\u003cp\u003eThe first time round, measuring feels more of a faff than emptying a ready-made jug. That's normal. After two or three fills you've got the hang of it, and the dosing chamber becomes what it is — the measuring cup already built into the bottle.\u003c\/p\u003e\n\n\u003cp\u003eThe tip no label gives you: don't wait for the first frost forecast to switch to winter dosing. If you move to 1 to 50 in October, while late-summer bug remains are still on the glass, you get the double dose exactly when it has the most work to do. And in January the antifreeze mix has long been sitting correctly in the reservoir, instead of being thrown together on the driveway at minus five.\u003c\/p\u003e","brand":"Dr. Wack \"CW1:100\"","offers":[{"title":"250ml","offer_id":54707201835343,"sku":"D1-DRW-1745","price":12.99,"currency_code":"EUR","in_stock":true},{"title":"40 ml","offer_id":54707201868111,"sku":"D1-DRW-1749","price":3.99,"currency_code":"EUR","in_stock":true},{"title":"5 Liter","offer_id":54707201900879,"sku":"D1-DRW-1743","price":126.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-super-scheibenreiniger-scheibenreiniger.png?v=1787867479"},{"product_id":"dr-wack-cw1-100-super-scheibenreiniger-fertig-mix-scheibenreiniger","title":"CW1:100 \"Super\" screenwash, ready-to-use","description":"\u003ch2 id=\"speakable-headline\"\u003eClear view without mixing, straight from the jerry can\u003c\/h2\u003e\n\u003cblockquote id=\"speakable-summary\"\u003e\u003cp\u003e\u003cem\u003eThe CW1:100 Super screenwash ready mix is a ready-to-use summer cleaner for the washer reservoir. It clears glare and smear films in a flash and gets rid of bug grime. You don't have to measure or mix anything, but you can stretch it if needed. No antifreeze and no concentrate for diluting.\u003c\/em\u003e\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eThe CW1:100 Super screenwash ready mix\u003c\/strong\u003e is a ready-to-use screenwash for summer use that goes straight into the washer reservoir with no prep. At its core is a specially developed polymer combination from the Dr. Wack Chemie research lab. It delivers a fast, low-streak view and combines the familiar CW1:100 quality with the convenience of a pre-mixed product.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear view in a flash.\u003c\/strong\u003e The cleaner clears glare and smear films instantly instead of just spreading them across the glass. So your view stays clean and glare-free even with a low sun and oncoming headlights.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-limescale formula.\u003c\/strong\u003e The formula binds limescale and so prevents clogged washer jets and deposits in the reservoir. Especially with hard tap water, that keeps the fan jets clear for longer and their spray pattern even.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTough on bugs, gentle on the system.\u003c\/strong\u003e Stuck-on bug grime comes off quickly, and the cleaner is designed for plastic headlight lenses and fan jets. On top of that, the formula extends the life of your wiper blades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cblockquote class=\"praxistipp\"\u003e\u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e With a stubborn bug film, a lot of people just pour in more cleaner and wipe dry straight away. That only smears. You're better off flooding the screen generously, letting the cleaner work for a few seconds and then running the wipers several times. We know it from our own delivery runs in summer: one quick squirt won't cut it on baked-on grime.\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cp\u003ePour the ready mix neat into the washer reservoir if you want the full effect, or mix it 1:1 with water if quantity matters more to you.\u003c\/p\u003e\n\u003cp\u003eNeat, you get up to 2.8 litres and maximum cleaning power; diluted, up to 5.6 litres. After topping up, run the washers a few times so the cleaner flows through the lines and jets and is ready to go straight away.\u003c\/p\u003e\n\u003ch3\u003eLimits\u003c\/h3\u003e\n\u003cp\u003eThis is a summer cleaner without antifreeze. In sub-zero temperatures the water in the reservoir and lines can freeze, so for winter you need a separate antifreeze product. The ready mix cleans the screen from the outside via the washer fluid; it's not a concentrate for heavy dilution and no substitute for cleaning heavily soiled glass by hand.\u003c\/p\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eThe ready mix is made for high-mileage drivers with high standards who want a consistently clear view in summer without measuring out concentrate every time. If clean jets, well-kept wipers and quick top-ups matter to you, this gets you the familiar CW1:100 performance in its most convenient form.\u003c\/p\u003e","brand":"Dr. Wack \"CW1:100\"","offers":[{"title":"2800 mL","offer_id":54707202130255,"sku":"D1-DRW-1741","price":12.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-super-scheibenreiniger-fertig-mix-scheibenreiniger.png?v=1787867469"}],"url":"https:\/\/detiiling1.com\/collections\/dr-wack-scheibe-sicht.oembed","provider":"Detailing1","version":"1.0","type":"link"}