Hand Lay-up

Hand Lay-up is an open molding process.

The reinforcement, in form of fiberglass strands, mat, or woven roving, is first laid into a mold which has been coated with a release agent and a gel coat. Then a resin mix is applied by hand, using a brush or spray gun. A roller is then used to ensure uniform impregnation, complete wet-out and removal of any trapped air bubbles.