Presta Super Cut Compound 1 Gallon — Gel Coat & Fiberglass Heavy Scratch Remover, Water-Based Rotary Formula

Presta Super Cut Compound (1 gal) is an aggressive, water-based cutting polish engineered to remove P800-grit and finer sand scratches plus oxidation from gel coat and fiberglass surfaces.

Designed for professional detailers and serious boat owners, this compound attacks heavy sanding marks and surface oxidation without adding waxes, fillers, or silicones. The formula is intended for high-speed rotary buffing on gel coat and fiberglass and rinses away cleanly with water. Below are concise answers to the most common buyer questions, plus practical specifics to help you choose and use this product correctly.

How fast does Presta Super Cut remove sanding scratches?

Presta Super Cut is formulated to cut aggressively so it removes P800-grit and finer sanding marks quickly when used with the right pad and a high-speed rotary buffer. You’ll see visible improvement in a single pass on moderately deep scratches; heavily scored areas may require repeat passes.

• Removes P800-grit and finer sand scratches and oxidation
• Best results with a high-speed rotary buffing tool
• Single-pass improvement on moderate defects; repeat passes for deeper scratches
• Water-based clean-up for easy residue removal

What surfaces can I safely use this compound on?

This compound is intended for gel coat and fiberglass surfaces commonly found on marine hulls, decks, and fiberglass accessories. It is not designed for painted automotive finishes or bare metal without prior compatibility testing.

• Specifically formulated for gel coat and fiberglass
• Not recommended for non-compatible painted surfaces without testing
• Free of waxes, fillers, and silicones to avoid residue buildup
• Water-based, allowing easier rinsing from non-porous surfaces

What tools and pads should I use with this product?

Presta Super Cut performs best with a high-speed rotary buffer paired with a cutting or heavy wool pad to maximize abrasion and remove coarse scratches. Always begin with lower pressure and speed to evaluate cutting rate, then adjust technique as needed to prevent heat buildup.

• Designed for use with high-speed, rotary buffs
• Use cutting wool or firm foam cutting pads for best results
• Start with low pressure and test a small area first
• Cool the surface periodically to avoid heat stress on gel coat

How do I finish the job after using this compound?

Because Super Cut contains no waxes or fillers, follow up with a finishing polish or glaze to restore gloss and a protective sealant suitable for gel coat. Clean the area of residue with water, inspect results, then refine with lighter polishes if needed to match surrounding gloss levels.

• Contains no waxes, fillers or silicones—follow with a finish polish
• Water-based formula rinses away for straightforward cleanup
• Inspect and refine with finer polishes for a uniform sheen
• Seal with a marine-grade protection product for UV and water resistance

Who this is for: Presta Super Cut Compound is aimed at professional marine detailers, boatyards, and experienced DIYers who need a powerful, water-based cutting compound to remove coarse sanding marks and oxidation from gel coat and fiberglass. Choose this product if you have access to a high-speed rotary buffer and are prepared to follow up with finer polishes and a protective sealant to complete the restoration process.