CEKOL GS-83 CONTACT is a high-performance quartz sand primer designed to strengthen surfaces and enhance the adhesion of plasters, putties, and mortars. This non-toxic, non-flammable product is perfect for both interior and exterior applications, providing a rough, durable surface that improves the uniformity, setting, and adhesion of subsequent coatings. CEKOL GS-83 CONTACT is a high-performance quartz sand primer...