Koch-Chemie Heavy Cut H8.02

Machine polish for serious paint correction

Koch-Chemie Heavy Cut H8.02

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£15.99

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Size 250ml

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Koch-Chemie Heavy Cut H8.02 Koch-Chemie Heavy Cut H8.02 £15.99

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Innovative machine polish for fast reworking of heavily weathered paintwork, elimination of deep scratches, and effective removal of paint mists and sanding traces of up to 1,500 grain.

  • Removes heavy paint defects
  • Cuts P1500 sanding marks
  • Corrects deep scratches
  • Restores weathered paintwork
  • Removes paint mist
  • Low dust working behaviour
  • Silicone-oil-free formula
Read the full description

Full Description

Innovative machine polish for fast reworking of heavily weathered paintwork, elimination of deep scratches, and effective removal of paint mists and sanding traces of up to 1,500 grain.

With its extremely homogeneous abrasive grain, Heavy Cut 8.02 achieves an extremely high level of cut with an excellent gloss level. Can be polished for prolonged periods without sticking and with low dust formation. Ideally suited to all types of paint (both soft and scratch-proof).

Cut: 8.5

Gloss: 5.0

Recommendations for use

Apply in a crosswise motion with a rotary polisher and a lambswool pad (for sanding traces of 1,500-2,500) or a polishing pad (for sanding traces of 2,500-5,000). Apply polishing compound at medium speed and with medium pressure. Polish afterwards with M3.02 Micro Cut Compound for the best possible finish.

More in Heavy Cut Compounds and from Koch-Chemie.

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Key features

  • Cut 8.5
  • Gloss 5.0
  • Heavy Cut Compound
  • P1500 Mark Removal

The Drivers HQ

Expert Notes

Koch-Chemie Heavy Cut H8.02 is a coarse machine polishing compound for correction work where lighter polishes do not have enough bite. It is designed to remove heavy weathering, deep scratches, paint mist and sanding marks up to P1500, while still finishing to a usable gloss level for a compound of this strength. The homogeneous abrasive grain gives controlled cutting performance with low dust and good working time, which is helpful on larger panels and harder paint systems. Pad choice matters. Lambswool gives the most correction on coarser sanding marks, while a foam polishing pad gives a more controlled cut on finer sanding traces. For maximum finish quality, refine afterwards with a suitable Koch-Chemie finishing polish.

Perfect For / Suitable Surfaces

  • Automotive paintwork
  • Gloss painted panels
  • Weathered paintwork
  • Soft paint systems
  • Refinished paint with testing
  • Commercial vehicle paintwork
  • Motorcycle paintwork

Caution: Check paint thickness, suitability and compatibility before machine polishing. Do not use on hot surfaces. Avoid matte paint, satin paint, textured plastics, rubber trim, unpainted plastics, vinyl wraps, PPF and sensitive trims. Mask edges and adjacent trim before correction work.

Technical Specifications

Product Type
Coarse Polishing Compound
Brand
Koch-Chemie
Product Name
Heavy Cut H8.02
Product Code
H8.02
Formula Type
Silicone-Oil-Free Machine Polish
Cut Rating
8.5
Gloss Rating
5.0
Sanding Mark Removal
Up To P1500
Primary Use
Heavy Defect Removal And Paint Correction
Application Method
Machine Polishing
Recommended Machine
Rotary Polisher
Recommended Pad For P1500-P2500
Lambswool Pad
Recommended Pad For P2500-P5000
Polishing Pad
Paint Type
Soft And Scratch-Resistant Paint Systems
Dust Behaviour
Low Dust Formation
Approval
Daimler Approved
Available Sizes
250ml And 1L
250ml Article Number
312250
1L Article Number
312001
Protection Product
No
Professional Use
Yes

How To Use

Paintwork preparation

  1. Wash the vehicle thoroughly.
  2. Remove bonded contamination before polishing.
  3. Dry the paintwork completely.
  4. Inspect defects under suitable lighting.
  5. Measure paint depth where required.
  6. Mask sensitive trims, edges and adjacent surfaces.
  7. Choose a test section before polishing the full vehicle.
  8. Shake the bottle before use.

Heavy correction

  1. Apply Heavy Cut H8.02 to a lambswool pad for stronger cut.
  2. Spread the compound across a small section before increasing machine speed.
  3. Work the polish in a crosswise pattern.
  4. Use medium machine speed and medium pressure.
  5. Keep the pad moving to control heat.
  6. Check the surface regularly during polishing.
  7. Remove residue with a clean microfibre cloth.
  8. Repeat only where defects remain.

Controlled polishing

  1. Use a polishing pad where less aggressive correction is required.
  2. Apply a small amount of compound to the pad.
  3. Work one section at a time.
  4. Use controlled overlapping passes.
  5. Reduce pressure towards the end of the polishing cycle.
  6. Wipe residue away fully.
  7. Inspect the finish before moving to the next section.

Finishing after heavy cut

  1. Inspect the paint for haze or compound marks.
  2. Refine the finish with a suitable Koch-Chemie finishing polish.
  3. Use a clean finishing pad for the refining stage.
  4. Panel wipe before applying ceramic coating.
  5. Apply wax, sealant or coating after final preparation.

Top Tip: Always complete a test section first. Heavy Cut H8.02 is a serious correction compound, so pad choice and paint hardness will change the result significantly.

Performance Benefits

  • Cuts quickly on heavy defects
  • Removes sanding marks efficiently
  • Keeps dust levels low

Frequently Asked Questions

What is Koch-Chemie Heavy Cut H8.02 used for?

It is used for machine polishing heavily weathered paintwork, deep scratches, paint mist and sanding marks up to P1500.

What are the cut and gloss ratings?

Koch-Chemie rates Heavy Cut H8.02 at Cut 8.5 and Gloss 5.0.

Is Heavy Cut H8.02 silicone-oil-free?

Yes, it is a silicone-oil-free coarse polishing compound.

Can H8.02 remove sanding marks?

Yes, Koch-Chemie states it can remove sanding traces up to P1500.

Which pad should I use with H8.02?

Use lambswool for stronger correction on P1500 to P2500 marks, or a polishing pad for finer sanding traces from P2500 to P5000.

Can I use H8.02 by hand?

No, it is designed as a machine polishing compound.

Does H8.02 leave protection behind?

No, it is a correction compound, not a wax, sealant or coating.

Should I refine after using H8.02?

Yes, refining with a finishing polish is recommended for the best final gloss, especially on dark or softer paint.

Can I use H8.02 on matte paint or PPF?

No, it is not suitable for matte finishes, satin finishes, wraps or PPF.

What sizes are available?

This listing covers 250ml and 1L sizes.

HQ Suggests Tips & Insights

  1. Use a test section before full correction.
  2. Measure paint depth where needed.
  3. Use lambswool only when heavy cut is required.
  4. Use foam for more controlled correction
  5. Keep pads clean during polishing.
  6. Do not polish hot panels.
  7. Mask trim and sharp edges before use.
  8. Refine afterwards for maximum gloss.
  9. Panel wipe before applying ceramic protection.

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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