Presta Super Cut Compound 1 Gallon — Heavy-Cut Marine Gelcoat & Fibreglass Scratch Remover

Presta Super Cut Compound (1 gallon) is an aggressive water-based polishing compound formulated to remove P800 grit, deeper sand scratches and oxidation from gel coat and fiberglass surfaces. Presta designed this Super Cut Compound for professionals and experienced DIYers who need fast, reliable correction on boats, marine gel coat, and fiberglass parts. Its high-cut formula works best with high-speed rotary buffers to quickly strip oxidation and sanding marks without added waxes, fillers, or silicones, and the water-based blend rinses clean for easier finishing.

How does this compound remove P800 grit and heavy sand scratches?

Super Cut Compound uses a high-abrasion formula tuned to cut through scratches left by P800 and finer abrasives. The abrasives abrade the damaged surface, allowing the operator to level and blend the surrounding finish before final polishing.

• Aggressive cutting agents that break down P800-level sanding marks
• Formulated for gel coat and fiberglass surface compatibility
• Designed for high-speed rotary buffing to speed correction

What prep and tools are needed to use Presta Super Cut Compound?

For best results, start with a clean, dry surface and remove loose contaminants. Use a high-speed rotary polisher fitted with a suitable cutting pad; work in small sections, then refine with finer polish steps as needed.

• Wash and dry the area to remove salt, dirt, and wax
• Choose a cutting pad matched to your rotary polisher
• Work in overlapping passes at moderate speed and pressure, then wipe clean

Will this product leave waxes or fillers that affect later finishing?

No — the formula contains no waxes, fillers, or silicones, so it won’t leave polishing residues that interfere with subsequent polishing or clearcoat adhesion. That makes it a good first-step corrective compound before finer polishes or sealants.

• Free of wax, silicone, and filler compounds
• Leaves a clean surface ready for finer polishes or protectants
• Water-based for easy cleanup and minimal residue

How does the water-based formula affect cleanup and handling?

The water-based composition simplifies cleanup with soap and water and reduces oily residue compared with solvent-heavy compounds. It still provides aggressive cutting action but rinses from pads and surfaces more readily when finished.

• Easier pad and surface cleanup with water and mild detergent
• Lower solvent odor than traditional solvent-based compounds
• Compatible with standard shop safety practices and PPE

This product is intended for boat owners, marine detailers, fiberglass repair shops, and experienced DIYers tackling heavy sanding correction or oxidation removal on gel coat and fiberglass. If you regularly use a high-speed rotary polisher and need a no-filler compound that cuts quickly and rinses clean, Presta Super Cut Compound is formulated for that role. For best outcomes, follow a multi-step polishing process: cut with Super Cut Compound, refine with a medium polish, then protect with a chosen sealant or wax designed for gel coat.

FAQ

Q: Can I use Presta Super Cut Compound on painted fiberglass as well as gel coat?

A: Yes, it can be used on fiberglass coatings and gel coat, but test a small area first and use appropriate pads and speeds for painted surfaces.

Q: Do I need a specific polisher for this compound?

A: A high-speed rotary polisher is recommended for optimal cutting performance, though some dual-action machines can work for lighter correction.