

Koch Chemie · Germany · Interior Care
Interior Cleaner for Leather, Alcantara & Textile
Quietly becomes a permanent fixture in the kit. Works on everything inside the car — safely.
Pol Star is one of those products that quietly becomes a permanent fixture in the kit. It's not flashy, it doesn't make wild claims — it just works on everything inside the car, safely, without damaging what it touches. Leather, Alcantara, fabric upholstery, carpet, door panels, plastics, door sills — one product, one dilution ratio adjusted to the job, and you're moving.
It doesn't leave water marks. It doesn't strip the factory waterproofing out of fabric. And it doesn't leave that chemical smell that makes the owner wonder what you used on their car.
pH
Neutral
Safe on dyes & protection
Dilution
1:5–1:20
Heavy to maintenance
Sizes
1L · 5L
92001US · 92005US
Origin
Germany
Koch Chemie
The chemistry behind it
What separates Pol Star from the generic interior cleaners on the market is the chemistry. It's a neutral-pH formula — which means it's not attacking the surface or breaking down the dyes and protective treatments in your leather and Alcantara the way alkaline cleaners can with repeated use.
The fine-pored foam action pulls dirt up and out of the fibres rather than pushing it around. The built-in conserver leaves a light protective barrier that slows resoiling — so the interior you just cleaned stays cleaner longer.
What it does
Dilution guide
1:5
Heavy Soil
Heavily soiled fabric seats, ground-in carpet — dwell time, color fastness required
1:10
Regular Use
Mid-range for standard interior cleaning across most surfaces
1:20
Maintenance
Light maintenance on door panels and leather — best value per litre
How to use
Surfaces
"Pol Star replaced P&S Xpress Interior Cleaner in my arsenal. I never loved Xpress — it smelled like vomit and left a weird film sometimes. In came Pol Star and after my first interior detail with it, I punted the rest of Xpress into the trash."
— verified buyer, Detail DivisionBefore first use: Test on a non-visible area to confirm colorfastness and material compatibility — standard practice on any interior you haven't worked before.