Dr. Wack "CW1:100" CW1:100 "BIO" screenwash 250ml

Clear view, made mostly from renewable raw materials

CW1:100 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.

CW1:100 BIO screenwash 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.

• Quick work of glare and smear film. 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.
• Goes a long way as a high concentrate. 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.
• Gentle on materials, with anti-limescale formula. 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.

Detailing1's tip from the shop: 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.

How to use

Mix 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.

In 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.

Limits

CW1:100 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.

Who it's for

The 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.

Quick how-to

Mix the concentrate with water at the ratio stated on the bottle and pour it into the washer fluid reservoir. Thanks to the anti-limescale formula, hard tap water is no problem either.

In winter, combine the concentrate with an antifreeze. The built-in cleaning booster boosts the effect of your antifreeze screenwash mix.

Quickly check the mixing ratio before filling. Dose too sparingly and cleaning power suffers; dose too generously and you're wasting concentrate for nothing.