Koch Chemie

Unlock the precision of German engineering with our authentic Koch Chemie collection. Known as the "Excellence for Experts," Koch Chemie supplies the factory chemicals for brands like Mercedes, BMW, and Audi. Their scientifically coded "Periodic Table" system makes it easy to identify the exact cut and gloss level of every polish. From the legendary Green Star APC to the heavy cutting H9.02 compound, these products deliver consistent, industrial grade results for professionals.

7 products

The Ultimate Guide to Koch Chemie (Kcx)

What is Koch Chemie and the "System"?

Koch Chemie is unique in the detailing world because of its systematic approach. Rather than using fancy marketing names, they label their products like elements on a periodic table. For example, H9.02 stands for "Heavy Cut" with a Cut level of 9 and Gloss level of 2. This transparency allows professional detailers to know exactly how a product will behave before they open the bottle. They are renowned for low dusting polishes and highly concentrated cleaners that offer exceptional value when diluted.

How to Choose the Right Koch Chemie Product

Understanding the code is key to selecting the right product.

  • Cleaners: Green Star (Gs) is a highly alkaline universal cleaner for engines and exteriors. Pol Star (Po) is a pH neutral cleaner specifically for leather and Alcantara. Never mix them up.
  • Polishing Compounds: Look at the numbers. H9.02 is for heavy scratch removal. F6.01 (Fine Cut) is a medium polish for one step corrections. M3.02 (Micro Cut) is for removing holograms and finishing to a high gloss.
  • Protection: 1K-Nano is a lacquer sealant that bonds chemically to the paint, while Protector Wax is a high gloss drying aid used in foam cannons.

Step-by-Step Usage Guide: The "Pol Star" Interior Clean

Koch Chemie Pol Star is the industry standard for safe textile cleaning.

  1. Dilution: Mix Pol Star 1:5 or 1:10 with water in a foaming pump sprayer.
  2. Application: Apply the foam to a leather brush or scrub pad, not directly to the seat (to avoid over saturation).
  3. Agitation: Gently work the product into the leather grain or fabric fibers. The foam lifts the dirt to the top.
  4. Wipe: Wipe away the dirty foam with a damp microfiber cloth.
  5. Finish: No water rinse is needed. Once dry, apply Leather Star (Ls) to condition the hide.

Common Mistakes to Avoid

  • Using Green Star on Leather: Green Star is alkaline (High pH). Using it on delicate leather can strip the dye and dry out the hide. Always use Pol Star for interiors.
  • Overworking the Polish: Koch Chemie abrasives break down precisely. If you work them too long (past the transparent stage), you can create dry dust and scouring marks.
  • Confusing the Pads: Koch Chemie color codes their pads to match the bottles (Red pad for Red H9 bottle, Yellow pad for Yellow F6 bottle). Mixing them up reduces efficiency.

Frequently Asked Questions about Koch Chemie

Q: What is the difference between Green Star and Pol Star?
A: Green Star (Gs) is an alkaline All Purpose Cleaner designed for grease, engines, and exterior grime. Pol Star (Po) is a neutral cleaner designed for protein based stains on textiles, leather, and Alcantara.

Q: Is Gentle Snow Foam (Gsf) pH neutral?
A: Yes. Gsf is pH neutral and safe for waxed or coated cars. However, it can be boosted with a splash of Green Star (Gs) to create an "Active Foam" for stripping old wax or heavy dirt.

Q: Do Koch Chemie polishes contain fillers?
A: No. Their core correction line (H9, F6, M3) contains no silicone fillers. They permanently remove defects rather than hiding them. The gloss you see is the actual finish of the paint.