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Koch-Chemie Green Star Universal Cleaner

APC for exterior, interior and engine

Koch-Chemie Green Star Universal Cleaner

SKU KC-291001 Rated 5.0 out of 5.0. 1 review Ask a question

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£9.99

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Koch-Chemie Green Star Universal Cleaner Koch-Chemie Green Star Universal Cleaner £9.99
Click & Collect: Ilkeston · FreeMost eligible orders are ready within 5 minutes during opening times. Please wait for your collection-ready confirmation before travelling. Click & Collect: Ilkeston Not available for this option. Options that can be collected show it here. How it works

Koch-Chemie Green Star is a highly concentrated, phosphate and solvent-free alkaline universal cleaner, aimed at workshops and detailers needing one cleaner for floors, engines and vehicles.

  • Cuts grease and grime
  • Dilutes for multiple jobs
  • Works inside and outside
  • Suitable for engine bays
  • Cleans textiles when diluted
  • Useful on workshop floors
  • Phosphate and solvent free
  • Professional Koch-Chemie APC
Read the full description

Full Description

Koch-Chemie Green Star is a highly concentrated, phosphate and solvent-free alkaline universal cleaner, aimed at workshops and detailers needing one cleaner for floors, engines and vehicles.

Highly concentrated, phosphate- and solvent-free, alkaline universal cleaner. Universally usable for the areas of workshop floor and industrial cleaning, interior and exterior cleaning of cars and trucks and engine cleaning thanks to its enormous dirt and oil carrying capacity.

Key features:

  • Phosphate and solvent-free alkaline formula
  • VDA class A conform
  • Max. 5 minute reaction time
  • Usable up to 1:3 concentration

More in All Purpose Cleaners and from Koch-Chemie.

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Key features

  • Alkaline APC
  • pH 12.5 Formula
  • Highly Concentrated
  • Phosphate Free
  • Solvent-Free Formula

The Drivers HQ

Expert Notes

Koch-Chemie Green Star is one of the most useful cleaners in the Koch-Chemie range because it can be diluted to suit very different cleaning jobs. Used stronger, it has the bite needed for exterior pre-cleaning, engine bay work and oily grime. Diluted further, it can be used for suitable interior and textile cleaning, then much weaker again for workshop and industrial floor cleaning. The formula is alkaline at pH 12.5, so dilution and dwell time matter. It should not be treated like a ready-to-use interior cleaner or sprayed carelessly over sensitive finishes. Use the right dilution for the surface, keep it away from hot panels, do not let it dry and remove product residue properly after cleaning.

Perfect For / Suitable Surfaces

  • Exterior plastics
  • Rubber trim
  • Engine bay plastics
  • Door shuts
  • Wheel arches
  • Tyre sidewalls
  • Textiles with care
  • Interior plastics with care
  • Commercial vehicles
  • Machines and equipment

Caution: Do not apply to hot surfaces and do not allow Green Star to dry. Use correct dilution on interiors, textiles, anodised aluminium, sensitive plastics, fresh paint, delicate finishes, wraps, PPF and coated surfaces. Rinse exterior areas thoroughly or remove residue with a damp cloth or wet vacuum where appropriate.

Technical Specifications

Product Type
Universal Cleaner
Brand
Koch-Chemie
Product Name
Green Star
Product Code
GS
Formula Type
Highly Concentrated Alkaline Cleaner
pH Value
12.5
Phosphate Free
Yes
Solvent Free
Yes
Primary Use
Universal Cleaning And Degreasing
Exterior Dilution
1:5 To 1:30
Engine Bay Dilution
1:5 To 1:30
Interior Dilution
1:10 To 1:20
Textile Dilution
1:10 To 1:20
Floor Cleaning Dilution
1:40 To 1:120
VDA Classification
Class A
VDA Reaction Time
Maximum 5 Minutes
VDA Maximum Application Concentration
1:3
Available Store Sizes
1L, 5L, 11L And 22L
Official Koch-Chemie Containers
1L, 5L, 11kg And 22kg
1L Article Number
291001
5L Article Number
291005
11kg Article Number
291011
22kg Article Number
291022
Professional Use
Yes

How To Use

Exterior cleaning

  1. Dilute Green Star according to the level of dirt.
  2. Use 1:5 for heavier exterior grime.
  3. Use 1:30 for lighter cleaning.
  4. Apply to cool surfaces only.
  5. Allow a short dwell time.
  6. Agitate where required with a suitable brush.
  7. Do not allow the product to dry.
  8. Rinse thoroughly using clean water or a pressure washer.

Interior and textile cleaning

  1. Dilute Green Star between 1:10 and 1:20.
  2. Test on a hidden area before cleaning.
  3. Apply to a cloth, brush or suitable sprayer.
  4. Agitate the surface lightly where needed.
  5. Remove residue using a damp microfibre cloth.
  6. Use a wet vacuum on textiles where appropriate.
  7. Avoid over-wetting sensitive materials.
  8. Allow the area to dry fully.

Engine bay cleaning

  1. Make sure the engine bay is cool.
  2. Cover or avoid sensitive electrical components.
  3. Dilute Green Star between 1:5 and 1:30.
  4. Apply to suitable plastics, rubber and metal areas.
  5. Allow a short dwell time.
  6. Agitate oily or greasy areas where required.
  7. Rinse or wipe away residue carefully.
  8. Dry the area before applying any dressing.

Floor and workshop cleaning

  1. Dilute Green Star between 1:40 and 1:120.
  2. Apply to the floor using suitable cleaning equipment.
  3. Allow brief contact time for dirt to loosen.
  4. Agitate where needed.
  5. Remove the dirty solution from the surface.
  6. Rinse or neutralise according to site process.
  7. Allow the area to dry before use.

Top Tip: Start with the weakest dilution that does the job. Green Star is highly concentrated, so stronger mixes should be kept for heavier dirt, grease and engine bay work.

Performance Benefits

  • Breaks down oily dirt
  • Handles exterior grime
  • Useful for engine cleaning
  • Works on textile contamination

Frequently Asked Questions

What is Koch-Chemie Green Star used for?

Green Star is a concentrated alkaline APC for exterior cleaning, engine bays, suitable interiors, textiles, workshop floors and industrial cleaning.

Is Koch-Chemie Green Star ready to use?

No, Green Star is highly concentrated and should be diluted to suit the cleaning task.

What dilution should I use for exterior cleaning?

Koch-Chemie recommends 1:5 to 1:30 for vehicle exterior and engine cleaning, depending on the level of dirt.

What dilution should I use for interiors?

Koch-Chemie recommends 1:10 to 1:20 for vehicle interior and textile cleaning

Can Green Star be used in engine bays?

Yes, it can be used for engine cleaning at the correct dilution, but avoid hot surfaces and sensitive electrical components.

Is Green Star pH neutral?

No, Green Star is alkaline and Koch-Chemie lists the pH value as 12.5.

Is Green Star safe on textiles?

It can be used on suitable textiles at the correct dilution, but always test first and remove residue properly.

Can Green Star be allowed to dry?

No, Koch-Chemie warns not to let Green Star dry on the surface.

Is Green Star phosphate and solvent free?

Yes, Koch-Chemie lists Green Star as phosphate-free and solvent-free.

What sizes are available?

This listing covers 1L, 5L, 11L and 22L store sizes, with official Koch-Chemie containers listed as 1L, 5L, 11kg and 22kg.

HQ Suggests Tips & Insights

  1. Use 1:5 only for heavier grime.
  2. Use weaker dilution for regular cleaning.
  3. Test interiors before full use.
  4. Do not let Green Star dry.
  5. Avoid hot surfaces.
  6. Rinse exterior areas thoroughly.
  7. Remove interior residue with a damp cloth.
  8. Use a wet vacuum for textile work.
  9. Keep separate brushes for engine bays and interiors.

The Brand

Koch-Chemie

Koch-Chemie (often written Koch Chemie) is a German car care maker from Unna. Hans Koch, a trained carpenter unhappy with the vehicle care products of the time, began mixing his own polishes in his garage in 1968 and founded Koch-Chemie GmbH. The company moved to its Unna headquarters in 1971, developed its Star range in 1990, and has been part of the French Novarc Group since June 2017. It is one of the few companies in the trade that researches, produces and sells its own products, with development and production in Unna, and many of its products are tested and approved by car manufacturers.

At The Drivers HQ we stock Koch-Chemie online with UK delivery and in our Ilkeston shop. Our customers' favourites are Green Star, Gentle Snow Foam, Pol Star, Micro Cut M3.02 and One Cut & Finish P6.02.

Shop all Koch-Chemie
Koch-Chemie Micro Cut and Finish P3.01, Heavy Cut H9.02, Micro Cut M2.02 and Headlight Polish 1 on a black display plinth in a photo studio

Koch-Chemie products by job

Pre-wash and wash. Gentle Snow Foam is a pH-neutral, cherry-scented foam that does not attack waxed or sealed paint. Use about 20ml per litre of water in a foam sprayer, or 50ml in 10 litres as a hand-wash shampoo, and add 10 to 30ml of Green Star to the mix for an active foam on stubborn dirt and insects. Green Star is the alkaline universal cleaner: 1:5 to 1:30 for exteriors and engines, 1:10 to 1:20 for interiors and textiles. Never let it dry or use it on hot panels. Active Foam, Autoshampoo and Ceramic Effect Shampoo complete the wash range, and Magic Wheel Cleaner is the wheel cleaner.

Decontamination and preparation. Eulex and Eulex M remove adhesive and stains, Orange Power lifts adhesive, tree resin and rubber marks, and Panel Preparation Spray cleans the paint before polishing or coating.

Machine polishing. Koch-Chemie gives its machine polishes a cut and gloss rating, and Heavy Cut H9.02, Fine Cut F6.01 and Micro Cut M3.02 are silicone-oil-free. Heavy Cut H9.02 (cut 9.0, gloss 6.0) takes out deep scratches and sanding marks up to 1,200 grit, Fine Cut F6.01 (cut 6.0, gloss 7.0) removes wash marks and 2500-grade sanding marks, and Micro Cut M3.02 (cut 3.2, gloss 9.0) removes holograms, fine scratches and P3000 sanding marks for the final gloss. One Cut & Finish P6.02 (cut 6.0, gloss 8.0) corrects and seals in one step. We also stock Heavy Cut H8.02, Heavy Quick Cut B9.01, Micro Cut M2.02, Micro Cut & Finish P3.01 and the P1.03 and P2.03 finish polishes, plus Headlight Polish 1 and 2 for clouded lenses.

Gloss and protection. ProtectorWax, QF Quick Finish, Quick & Shine and Finish Spray Exterior keep the gloss up between details, and the Coating Towel 5 Pack wipes off residue.

Interior, plastics and glass. Pol Star cleans textiles, leather and Alcantara, COLOURLOCK Leather Care looks after leather, and Allround Surface Cleaner and MZR clean hard interior surfaces. Plast Star is a silicone-free plastic care, alongside Gummifix, Motorplast and Hydro Plast Care. Glas Star and Glass Cleaner Pro clean glass, and Fresh Up tackles odours.

Shop Koch-Chemie by type: snow foam, all purpose cleaners, heavy cut compounds, finishing polishes, quick detailers and glass cleaners.

Koch-Chemie Micro Cut and Finish P3.01 and Heavy Cut H9.02 on a detailing trolley in front of a black BMW M2 Competition having its bonnet machine polished

Choosing a Koch-Chemie polish

Koch-Chemie rates its machine polishes for cut (how much they remove) and gloss (how much shine they leave), so you can pick the stage that matches the paint.

  • Heavy Cut H9.02 (cut 9.0, gloss 6.0) is the first stage on heavily weathered paint, deep scratches and sanding marks up to 1,200 grit. It suits soft and scratch-resistant paint. Koch-Chemie recommends a rotary polisher at medium speed and pressure, then a finishing stage with Micro Cut M3.02 or Micro Cut & Finish P3.01.
  • Fine Cut F6.01 (cut 6.0, gloss 7.0) is the middle stage for medium to heavily weathered paint and wash marks, at no more than 2,000rpm. Remove any streaks it leaves with Micro Cut M3.02.
  • Micro Cut M3.02 (cut 3.2, gloss 9.0) is the finishing polish. It removes holograms and fine scratches rather than filling them, which makes it the one to finish dark and sensitive colours.
  • One Cut & Finish P6.02 (cut 6.0, gloss 8.0) corrects and seals in one step, with carnauba wax, on a dual action polisher with at least a 15mm stroke: five pea-sized drops on the pad. Keep it off painted plastics and rubber.

Use a separate pad for each polish, keep off hot panels and store polishes away from frost and heat. For the pads and machines, see our polishing pads and polishing machines.

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