Koch Chemie Gelcoat Heavy Cut Dilution Ratios & User Guide

Koch Chemie Gelcoat Heavy Cut dilution ratio and pH specification chart

젤코트 헤비 컷

Koch Chemie Gelcoat Heavy Cut — Exterior : Polishes. See full specs and usage on the Find Your Detail product page: https://findyourdetail.io/products/koch-chemie/gelcoat-heavy-cut

Koch Chemie 젤코트 헤비 컷 — Exterior : Polishes. 전체 사양·사용법은 Find Your Detail 제품 페이지에서 확인하세요: https://findyourdetail.io/products/koch-chemie/gelcoat-heavy-cut

Aggressive cutting compound aimed at restoring badly weathered marine gelcoats and boat paint. Designed for prolonged working time with little dusting and slinging, wipes off cleanly, and leaves no silicone-oil residues behind.

심하게 풍화된 보트 젤코트와 도장면을 되살리기 위한 강한 연마력의 컴파운드입니다. 먼지와 비산을 최소화하면서 오랫동안 작업할 수 있고 잔여물이 깔끔하게 닦이며 실리콘 오일은 들어 있지 않습니다.

Brand
Koch Chemie
Categories
Exterior : Polishes
Primary dilution
RTU
Where to buy
Search on Amazon (US)
Last updated
2026-08-14

How it works

  • Conditioning oil — Replenishes oils in leather and rubber to slow drying out.
  • Petroleum solvent — Dissolves tar and grease; best not left to dwell on paint.

Disclosed ingredients

IngredientCASFunction
White mineral oil (petroleum)8042-47-5Emollient
Naphtha (petroleum), hydrotreated heavy64742-48-9Solvent

Ingredients disclosed in the manufacturer's Safety Data Sheet. A safety data sheet lists hazardous components only, so this is not a full formula.

Key features

  • Strong abrasive action
  • Long open working time
  • Low dust and sling
  • Silicone-oil free

Dilution

UseDilutionRatio
Exterior : Polishes (primary)RTU1:0

Usage

  1. Place about five pea-sized drops on a Heavy Cut pad, lambswool short pad, or twisted wool pad.
  2. Spread the compound across the panel at low speed using crosswise passes to even it out.
  3. Run a rotary at up to 1000 rpm or set a random orbital to its highest speed to work the panel.
  4. Wipe off any residue with a polish and sealing towel; refine dark colours with Gelcoat Micro Cut.
  5. Follow up with Gelcoat Finish, Marine Protective Sealant, or Ceramic Boat Hull to seal the surface.

핵심 특징

  • 강한 연마력
  • 긴 작업 시간
  • 저분진·저비산
  • 실리콘 오일 무첨가

사용법

  1. 헤비 컷 패드, 람스울 쇼트 패드, 트위스티드 울 패드 중 하나에 콩알만 한 양으로 다섯 방울 정도 올립니다.
  2. 낮은 속도로 가로세로 교차 패스를 주며 컴파운드를 패널 전체에 고르게 펴 발라 줍니다.
  3. 회전형 폴리셔는 최대 1000rpm, 엑센터 폴리셔는 최고 단계로 설정해 본격적으로 작업합니다.
  4. 잔여물은 폴리시 앤 실링 타올로 닦아 내고, 어두운 색에는 젤코트 마이크로 컷으로 마무리 광택을 잡습니다.
  5. 마무리는 젤코트 피니시, 마린 프로텍티브 실런트 또는 세라믹 보트 헐로 실링하여 표면을 보호합니다.

Also known as: KCX, koch-chemie, 코흐, 코흐케미, GHC, Koch GHC, KC GHC, 코흐케미 젤코트 헤비 컷

한국어로 보기

Sources

  • Koch Chemie official product page
  • Safety Data Sheet (SDS / MSDS)

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Explore more

  • Category, comparison & dilution guides
  • What detailers actually use (video breakdowns)