Glass cleaning & sealing – for clear visibility in any weather

Clean windows are not a luxury – they are safety.
With 21CARS® glass products you get crystal-clear vision, whether it's rain, snow or driving at night.
Our glass cleaner removes residues and streaks without alcohol odor, the waffle microfiber cloth ensures a streak-free shine, and the glass sealant forms an invisible, water-repellent layer.

Water simply beads off, dirt adheres less, and you can see clearly in any weather – typical 21CARS®: functional, efficient, Swiss engineered.

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7 products

Waffle Microfibre Drying Towel for Car Windows Set | 40x40cm - 300 GSM
Save 33%
Glass Cleaner 0.5 liters  | Basic Set
Sale priceCHF 26.00 Regular priceCHF 39.00
5.0
Glasreiniger Glasklar | 0.5 Liter - 21CARS - 21 - 33 - 005 - 05 - 0710497361200
Save 28%
Car Windscreen Sealant Set – Clear View & Beading Effect in Rain
Reinigung und Pflege Starter - Set | 4x 100ml - 21CARS - 21 - 33 - 010 - 01 - 0710497361347
Glasversiegelung Set - 21CARS - 21 - 33 - 020 - Set - 0710497362139
Sale priceCHF 46.00(92.00/100ml)
Wash Glove Blue
Sale priceCHF 13.00(32.50/l)

A clear view that lasts – not just after cleaning.

Anyone who has ever been out in the rain or when the sun is low knows: smeared windows are dangerous.
That's why 21CARS® relies on aCompletely coordinated glass care line– from cleaner to sealant.
No smearing, no polishing, no frustration. Just crystal-clear visibility and that moment when the water runs off in tiny beads.

The 21CARS® glass cleaning system

The combination ofGlass cleaner, waffle microfiber cloth and glass sealantis the foundation for perfect visibility.

Our cleaner reliably removes dirt, fingerprints, and dust without leaving streaks.Waffle clothIt glides smoothly over the surface and removes residues without leaving streaks – a cloth that anyone who values ​​precision should have held in their hand at least once.

Those who then21CARS® Glass SealantOnce applied, it seals in the effect: rain beads off, visibility remains clear, and the wiper becomes almost unnecessary. A system developed under real Swiss conditions – with a focus on weather resistance, limescale resistance, and durability.

Glasversiegelung anwendung

More than just cleaning – Swiss-level facial care

Good glass cleaning doesn't end with cleaning, but begins with proper protection.

Especially in Switzerland, where sun, rain, and snow alternate hourly, glass sealing truly shines. It reduces the adhesive film on the glass, prevents limescale buildup, and ensures that water and dirt don't stand a chance.

This means less wiping, less glare, more safety – all without compromising driving comfort. If you've ever driven in the rain while the water dances down the windshield in fine droplets, you'll know why high-quality glass care is worth it.

FAQ – Glass cleaning, sealing & application

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