Gelcoat Repair Kits, Tools & Additives

Gelcoat Repair Supplies – Fix Cracks, Chips, and Faded Surfaces

Fiberglass Florida carries everything you need to repair and restore gelcoat damage on boats, surfboards, and fiberglass structures. Whether you're patching spider cracks, matching original colors, or performing full refinishing work, we offer gelcoat pigments, PatchAid, wax additives, MEKP catalyst, sanding tools, and polishing compounds to get the job done right. Perfect for DIYers and professional repair shops alike.

Which products would you use to buff and polish your boat?

Fiberglass Florida sells Presta Products. Some options are, Super Cut Compound, Gelcoat Compound, Ultra Polish, Max Finishing Polish.

Do you have a youtube video on Gelcoat repair?

Yes we do. Click read more for the link

What’s the proper sanding and wet-sanding grit progression to finish gel coat before buffing?

For fresh gel coat: level with 400 (or 320 if heavy peel), then wet-sand 600 → 800 → 1000 → 1200/1500 → 2000, followed by compound (wool pad) and polish (foam pad). If the gel coat is thin or only lightly textured, start at 800–1000 to avoid cutting through. Don’t skip grits; keep the surface cool and lubricated with soapy water.

What materials do I need to repair my boat?

Most fiberglass boat repairs require the right resin system, fiberglass reinforcement, fillers, catalyst or hardener, sandpaper, rollers, safety gear, and mixing supplies. The exact materials depend on whether your repair is structural or cosmetic and which resin type your boat was built with.

What pads, compounds, and polishes should I use after wet-sanding gel coat?

After finishing at 1500–2000 grit (or finer), compound with a wool cutting pad and a marine cutting compound, then polish with a foam pad and a finishing polish. We carry Buff and Shine® pads and Starke® and Presta® compounds/polishes to cover the full cut → finish workflow.

Best Gelcoat Additives for Spraying and Repairs

How Do I Prepare Gelcoat for Spraying?

Use MEKP catalyst (1.5–2%) for curing, and thin gelcoat with up to 10% styrene. Add a spray additive—either Duratec 904‑001 or Patch Aid 970X900—to improve flow and finish. For open-air repairs, include 2–4% wax additive to ensure a tack‑free cure.

Which roller should I use to apply gel coat?

Use a 3/16" nap pink mohair roller cover—low-lint, solvent-resistant, and smooth-laying for gel coat. Avoid foam (adds bubbles). If you need extra build on rough/texture, a ¼" mohair can work but may leave more texture; tip off with a quality natural-bristle brush if needed.

Gelcoat vs. Awlgrip: A Comprehensive Comparison for Marine Finishes

Gelcoat is a resin-based coating that is typically used as the outer layer of fiberglass composite structures. It provides a smooth, durable, and glossy finish. Awlgrip is a brand of polyurethane paint designed for marine applications. It is used as a topcoat to provide a durable, long-lasting finish.

Gelcoat Repair Kits, Tools & Additives

Validate your login

Gelcoat Repair Supplies – Fix Cracks, Chips, and Faded Surfaces

How Do I Prepare Gelcoat for Spraying?