Koch Chemie Allround Surface Cleaner (ASC) is a ready-to-use multi-surface interior and exterior cleaner trusted by professional detailers across Europe and North America. It quickly dissolves fingerprints, dust, grease, and everyday dirt from a wide range of surfaces without leaving any residue or streaks behind. Fast, clean, and effective every time.

Safe for use on plastics, interior trim, glass, dashboards, door panels, center consoles, and virtually any hard non-porous surface inside the vehicle. Also works great in workshops, showrooms, and commercial spaces. Pleasant fragrance makes working with it comfortable in enclosed spaces.

If you are looking for a professional all-purpose surface cleaner for auto detailing that delivers streak-free results on multiple surfaces, Koch Chemie ASC is a benchmark product used in top detailing shops worldwide. Available in 500ml and 5L.

Koch Chemie ASC (Allround Surface Cleaner) Usage

Allround Surface Cleaner (ASC) is Koch Chemie's IPA-based paint prep — used before ceramic coating application to strip polishing oils, sealant residue, and surface contamination so the coating bonds directly to clean paint.

• Paint prep before ceramic coating: Ready-to-use. Spray onto panel, wipe with clean microfiber, let flash off (30 sec), wipe with second clean microfiber.
• Not a daily product. ASC will strip wax/sealant — use only before coating application.
• Two-towel method: First towel wipes the product, second towel removes residue.

Frequently Asked Questions

What's Koch Chemie ASC used for?

Paint prep before applying ceramic coating. ASC is IPA-based (isopropyl alcohol) and strips any polishing oils, waxes, or sealants left on the paint so the ceramic coating can bond directly. It's the final step between polishing and coating application.

Do I need to dilute Koch Chemie ASC?

No — ASC is ready-to-use at full strength. Dilution would reduce its ability to strip oils and residue. For a milder IPA wipe, use a dedicated panel wipe product instead.

Koch Chemie ASC vs CarPro Eraser — which is better?

Both are IPA-based paint preps. ASC wipes cleaner with less streaking on darker colors in the experience of most shops. Eraser is a known quantity and works fine. Either works for coating prep — it comes down to what your coating manufacturer recommends and what's in stock.

Buying for a shop? See our Koch Chemie wholesale program for B2B pricing on this and the full Koch Chemie lineup.