Premium Marine Resin - Quart--The perfect no-run, no-sag polyester resin for marine repairs! May be used on softwoods and fiberglass. Ideal repair for hulls, decks, cabins, and tanks. Repairs all boat surfaces, resists impacts and protects against moisture damage. Use with Sea-Glass fiberglass fabrics and Evercoat Coloring Agents. Liquid hardener included.