GL Finish Sand 4:1 Polyester Primer is a high-build, easy-to-sand primer designed to deliver a smooth, ultra-flat surface for automotive refinishing. Formulated with a 4:1 mix ratio, this premium polyester primer provides excellent filling properties, helping eliminate surface imperfections, sanding scratches, and minor bodywork inconsistencies before topcoat application.
Ideal for use on metal, fiberglass, and properly prepped substrates, GL Finish Sand cures quickly and sands effortlessly to a powdery finish, making it perfect for both collision repair and custom paint jobs. Its superior build and feather-edging performance ensure a flawless foundation for professional-grade paint finishes.