Professional glass degreasing, even in freezing temperatures
Want truly clean, streak-free glass, even when dealing with stubborn dirt? Koch Chemie Glas Star is a professional alcohol-based car glass cleaner that tackles even what ordinary cleaners can’t.
It’s ideal for anyone wondering how to clean a windshield without streaks, remove greasy film, or degrease glass before applying protection. Thanks to its alcohol content, it dries quickly, leaves no marks, and works reliably even in colder weather.
This glass-cleaning concentrate tackles oils, grease, silicones, wash residue, insects, and other dirt that can impair visibility and spoil the final detailing results.
What this glass cleaner has to offer
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Professional alcohol-based cleaner – fast-drying and streak-free.
- Removes grease, silicones, and road film.
- Highly concentrated – can be diluted up to 1:3.
- Excellent for winter use and low temperatures.
- Improves towel glide and makes polishing easier.
- Suitable for cars and around the home (glass, mirrors, tiles, metal).
When to use it
Glas Star is especially useful when you need to thoroughly degrease glass, deal with stubborn dirt that ordinary cleaners can’t remove, or prepare glass for a protective coating, such as a rain repellent. It’s more than just a cleaner – it prepares the surface for the next step in detailing.
Recommended dilution
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Heavy dirt: use undiluted.
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Routine cleaning: dilute up to 1:3.
- For best results, use demineralized or reverse-osmosis water.
Instructions for use
- Dilute with water if needed.
- Spray the product onto the glass or a waffle-weave window towel.
- Spread evenly with the towel.
- Buff dry for a clean finish.
For best results, use two towels – one for cleaning and the other for buffing. NOX VisionOne is ideal for this: a waffle-weave microfiber towel designed specifically for windows. This helps minimize streaks and leaves a clean, mark-free finish.
What to watch out for
- Do not use on alcohol-sensitive surfaces.
- Not suitable for maintaining hydrophobic glass coatings.
- Test on a less visible area before use.
- Protect your eyes and do not inhale the aerosol.
Frequently asked questions
How much can Glas Star be diluted?
For routine cleaning, dilute up to a ratio of 1:3; for heavy dirt, use it undiluted.
Does it work in freezing weather?
Yes. Its alcohol content helps it dry quickly and work reliably even at low temperatures.
Is it suitable for maintaining hydrophobic glass coatings?
No, do not use Glas Star on hydrophobic glass coatings – it could damage them.
What else can it be used for besides cars?
It’s also suitable for home use – on mirrors, tiles, and metal surfaces.
What’s the best towel for glass?
NOX VisionOne – a waffle-weave microfiber towel designed specifically for windows, helping prevent streaks.
What’s the difference compared with Koch Chemie Glass Cleaner?
Glas Star is alcohol-based and better at tackling stubborn dirt and freezing temperatures, while Glass Cleaner is alcohol-free and a gentler choice for frequent cleaning.
