koch chemie gelcoat heavy cut gh8 01 grobe schleifpolitur marine linie Kühlbox No long dwell needed —

No long dwell needed — the prep effect comes from the mechanical work as you apply

it doesn't seep into grooves and tread cuts

peaking after 3–4 days

The two products complement each other perfectly: the EX 05-05 removes the heavy defects

This compound runs a cut grade of 7

koch chemie gelcoat heavy cut gh8 01 grobe schleifpolitur marine linie Kühlbox No long dwell needed —Heavy cut compound for gelcoat and boat paint Koch Chemie Gelcoat Heavy Cut "Gh8. 01" Koch Chemie Gelcoat Heavy Cut "Gh8. 01" is what you reach for on badly weathered gelcoat and boat paint. This heavy cut pulls out deep scratches, chalky oxidation and scuff marks the kind fenders leave behind and lays down serious gloss in the very first pass, even on dark surfaces. It's silicone oil free, so you can keep working it for ages without it burning in,