Polyester Products Ph. Putties Primers Liquid Urethane Expanding Foam Pourable Foam in 2LB, 4LB, 8LB and 16LB densities. Duratec Gray Surfacing Primer Duratec primer is a high quality polyester suraface primer that offers outstading filling and leveling properties. Excellent adhesion is formed on fiberglass, metal, wood, pressboard, brick, concrete, and various foams.
Duratec primer is designed for rapid build-up.
The easily sanded surface will polish to a high gloss, if required. It can also be added to gelcoat for repairs and to upgrade tooling gelcoats.