Endura HS-421 Primer is a two-component acrylic urethane primer designed for spray application. It is designed as an automotive primer for previously painted surfaces. It has high build capability and is easily sanded. HS-421 Primer can also be used directly over properly prepared wood, fiberglass, and polyester fillers.
High build up to 10 mils Dry Film Thickness
Easy sanding after as little as two hours
Formulated to fill imperfections in rough or porous surfaces
HS-421 primer must be sealed before application of topcoat.