GAF Acrylic Base Coat is anelastomeric acrylic coating used in a basecoat/topcoat system to improve the adhesion of GAF Acrylic Top Coat. Additionally, GAF Acrylic Base Coat can provide bleed-blocking on aged asphaltic surfaces. GAF Acrylic Base Coat is designed for easy application with conventional or airless spray equipment, as well as brush or roller.