RUPES Marine XC-100 1000ml Extra-Cut Compound

RUPES Marine XC-100 is a heavy-cut compound for demanding gelcoat correction. The manufacturer specifically identifies P800 and P1000 sanding marks as targets for this formula. It is useful during fresh gelcoat work, mold maintenance, or restoration of badly oxidized surfaces.

At this cutting level, the goal is to remove pronounced defects rather than deliver the final gloss in one pass. Pad choice and the polishing machine determine how aggressively the compound works. Inspect the remaining material and sanding pattern as you go, especially around edges and raised details.

XC-100 is supplied in a one-liter bottle for marine finishing and boatyard work. After the heavy cut, a finer compound or polish can refine the gloss to the desired level. Choosing XC-100 rather than a milder marine polish makes sense when the initial surface condition demands serious correction. It is not the final protection stage; refine the surface before applying a sealant. Browse more marine polishes and compounds.

• Heavy-cut gelcoat polishing compound
• Specified for P800/P1000 sanding-mark removal
• For production gelcoat and severe oxidation
• 1000ml bottle for marine surface correction