Asphalt roof primer is a quick drying, asphalt-based material designed for priming surfaces prior to appliation of hot-mopped or cold-applied asphalt coatings, roof cements, and asphalt-based roof and flooring adhesives. High penetrating qualities help assure a firm, tough bond.  Specially designed for metal edging and flashings, weathered (composition) roofing, concrete and masonry surfaces and gypsum surfaces. 30-ounce aerosol can.

• Excellent adhesion to concrete, wood, felt, gypsum, plastic, glass, and metal.
• Forms a tough waterproof seal that will trap and encapsulate dust and other loose particles.
• Creeps into cracks and crevices, then sets up and bonds to surfaces.
• Provides rust proofing while filling surface pores.
• Each application provides a smooth, even, protective field.