Active foam for car & pre-wash – powerful, pH-neutral & safe

With 21CARS® active foam , car care becomes an experience.
Our foam cleaner gently removes dirt, insect residue and road grime from the paintwork – without any hard scrubbing.
Whether using a foam lance , foam gun or spray bottle – the dense, stable foam adheres perfectly and works the dirt away before you start hand washing.
Ideal for regular pre-washing in Switzerland to protect your paintwork and sealant in the long term.

Perfect for: Active foam car wash , foam shampoo , pre-wash car care Switzerland , 21CARS® foam care .

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6 products

On sale

Foam Party Set Active Foam | 0.5 Liter5.0

From CHF 44.90

CHF 52.80

5.0

Aktivschaum Reiniger Himbeere | 500ml - 21CARS - 21 - 33 - 001 - 05 - 0710497361064

Raspberry Active Foam Cleaner | 500ml5.0

CHF 19.90

5.0

Solo Foam Party Set Aktivschaum - 21CARS - Solo - Set - 1 -

Foam Party Set Active Foam | 0.5 Liter

From CHF 49.9

Foam Party | Spray Bottle for Active Foam4.5

CHF 32.90

4.5

CLEANLine Vario Foam 304 FA Schaumsprüher - SOLO - WG - 5780 - 4015966303313

CLEANLine Vario Foam 303 FA Foam Sprayer

CHF 49.90

Save 12%

Aktivschaum 0.5 Liter – 2 für 1 Aktion mit kostenlosem Messbecher - 21CARS - 21 - 33 - 001 - 05 - Set - 2 - '0710497361415'

Active Foam 0.5 Liter – 2 for 1 Deal with Free Measuring Cup

CHF 34.90

CHF 39.80

Cleaning & Care

Sealing & Polishing

License plate holder

microfiber

Watches

Why active foam is a must-have for every car wash

Active foam is more than just fun when washing – it protects the paintwork!
The dense foam encapsulates the dirt, loosens it from the surface and minimizes friction during washing.
This is how they are createdno micro-scratches, and your paintwork will stay looking new for longer.
The 21CARS® formulation ispH-neutral,biodegradableandMade for Swiss conditions– perfect for any car and any season.

The 21CARS® active foam range

Active foam car cleaner:Strong foam, pH-neutral, suitable for hand washing and foam lance use.
Foam spray bottle:Ideal for spot cleaning without a pressure washer.
Foam Party Set:The complete package – cleaner, spray bottle and accessories for maximum foaming effect.

All products areconcentrated,efficientand forall types of paint and sealantsuitable.
Ideal for use at washing facilities and at home in Switzerland.

Application – how to get the most out of the foam

Let the vehicle cool downand rinse off coarse dirt.
Mix active foam:Depending on the level of soiling, use 30–50 ml per 1 L of water (in a foam lance or spray bottle).
Apply evenly to the entire vehicle.
Leave on for 2-4 minutesDo not allow to dry out.
Rinse with clean water and with a21CARS® Drying Toweldry.

Tip:For extra shine, then...Glanzklar car shampoouse.

FAQ – Active Foam & Prewash

Do you have a question? We're here to help.

Our support team is available to you from MO-FR 8 AM to 5 PM.Average response time: 24h

What is the advantage of active foam compared to regular shampoo?

Active foam is for thePre-washThe idea is that it loosens dirt before you start hand washing.
Through thisDo you avoid scratches?and protects the paintwork.
Normal shampoo is then used to clean and care for the surface.
Ideal for car enthusiasts in Switzerland who value paint protection.

Can I use 21CARS® active foam without a pressure washer?

Yes! With the21CARS® Spray BottleThe foam also works without high pressure – ideal for underground car parks, city centers or if you don't have a compressor.
Simply mix, spray on, let it work, rinse off.
The foam quality is excellent, even with normal water pressure.

Is the active foam safe for use with ceramic coatings or wax?

Yes, 100%. The21CARS® Active FoamispH-neutraland attacksno protective layersto.

It is perfect for sealed or waxed vehicles – and even extends the lifespan of your coating.

Can I use the active foam on foil or matte lacquer?

Yes! The foam isSuitable for foil and matte lacquer finishes.
It cleans gently, without leaving shiny spots or discoloration.
Simply don't let it dry and always apply in the shade – then the surface will remain perfect.

What do I do if the foam is too thin or too thick?

Simply adjust the mixing ratio:

More cleaner = denser foam, more water = lighter foam.

Water hardness varies in Switzerland depending on the region – athard water (e.g. Zurich, Aargau)Use a little more concentrate.

This way you always get perfect, stable foam.

Our support team is available to you from MO-FR 8 AM to 5 PM.Average response time: 24h

Active foam for car & pre-wash – powerful, pH-neutral & safe

Why active foam is a must-have for every car wash

The 21CARS® active foam range

Application – how to get the most out of the foam

FAQ – Active Foam & Prewash

Fast shipping

Quality with Pride

Swiss brand

Pay with Twint

Active foam for car &amp; pre-wash – powerful, pH-neutral &amp; safe

Why active foam is a must-have for every car wash

The 21CARS® active foam range

Application – how to get the most out of the foam

FAQ – Active Foam &amp; Prewash

Fast shipping

Quality with Pride

Swiss brand

Pay with Twint

Active foam for car & pre-wash – powerful, pH-neutral & safe

FAQ – Active Foam & Prewash