Tag Archive: Fiberglass Doors

Mar 22

Gel Coats vs Polyurethane Coatings

The Ultimate in Fiberglass Reinforced Plastic Door Systems What is a Gel coat finish? Gel coat is a pigmented polyester resin used in open molding, bag molding, resin transfer molding, etc. (But not the pultrusion process) for these reasons. 1) It serves as a release agent: Without gel coat the resin would eat through the …

Continue reading »