3M Perfect-It Gelcoat Medium Cutting Compound — 473ml
Restore your gelcoat to showroom condition — a professional-grade medium cutting compound specifically formulated to remove heavy oxidation, stains, and surface imperfections from fibreglass and gelcoat surfaces.
Key Features
Gelcoat-Specific Formula — Engineered specifically for fibreglass and gelcoat surfaces common on boats, jet skis, and marine vessels — not a generic all-purpose compound repurposed for marine use.
Medium Cutting Action — Cuts through heavy oxidation, water stains, scratches, and surface defects without being so aggressive it risks burning through thin gelcoat when used correctly.
Restores Colour and Gloss — Removes the chalky, dull surface layer left by UV exposure and weathering to reveal the original colour and shine underneath.
Machine or Hand Application — Can be applied by dual-action polisher, rotary buffer, or by hand for smaller areas and touch-up work.
Suitable for Heavily Weathered Surfaces — The compound of choice when lighter polishes aren’t cutting through the oxidation — ideal as the first step in a two or three-stage restoration process.
Specifications
- Product - 3M Perfect-It Gelcoat Medium Cutting Compound
- Part Number - 36105
- Volume - 473ml
- Surface Type - Fibreglass / Gelcoat
- Cut Level - Medium
- Application Method - Machine (DA or rotary) or hand application
- Finish Step - Follow with 3M Perfect-It Gelcoat Polish for best results
- Brand - 3M Marine
Common Applications
- Removing heavy oxidation from boat hulls and topsides
- Restoring faded or chalky gelcoat on fibreglass vessels
- Removing water stains, rust marks, and surface scratches
- First stage in a multi-step gelcoat restoration
- Jet ski, kayak, and fibreglass tender restoration
- Pre-sale detailing and cosmetic restoration
Why It Works
Gelcoat oxidation is one of the most common and visible signs of a neglected boat — that chalky, dull finish that no amount of rinsing shifts. The 3M Perfect-It Gelcoat Medium Cutting Compound tackles the problem at the source by cutting through the degraded surface layer to expose fresh, unoxidised gelcoat underneath. The medium cut means it’s aggressive enough to handle real-world weathering without being unnecessarily harsh, and it’s designed specifically for fibreglass rather than adapted from an automotive formula. Follow it with the matching 3M Perfect-It Gelcoat Polish to lock in the gloss.
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