1Quart Rubber Roof Primer Coating System - Part 1 of a 2 step process, this Dicor Rubber Roof Cleaner/Primer dramatically increases the bond of the White Acrylic Coating (step 2) to new or weathered rubber roof surfaces. It chemically alters the rubber surface to which it is applied, creating a lock and key effect with the subsequent Dicor White Acrylic Coating. Use it to clean and prepare your EPDM roofing for maximum adhesion of acrylic coating. Spray on and rinse off thoroughly to eliminate any residue. 1Quart covers approx.125 square feet. This is Step 1 of a 2 part system. (Use with our part #12025000 Acrylic Coating.) 1Quart bucket.