FAQ Search Results
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.
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.
Fiberglass Florida: Custom Gelcoats in Your Favorite Awlgrip Colors
Yes, Fiberglass Florida can make colored gelcoats. We offer custom colors matched to the Awlgrip color chart, available in gallons and 5-gallon pails. These colors are made to order.
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.
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.
What type of tooling gel coat should be used for mold construction?
Isophthalic gel coats provide the best gloss, while vinyl ester gel coats offer higher strength and heat resistance.
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