Fiberglass Coatings Polyester, Surfboard Resin, Clear, Wax Free, 1 Gallon Clear, wax free. Casting resin for small objects. Designed for surf and sail board building and repair, highlights underlying graphics MEKP required (sold separately) Exceptionally good color and cures almost to clear in laminates or films. Low viscosity for easy wet out, and is promoted for room temperature cure. Can be used for 1/4" thick castings. Highlights underlying graphics.