RMA Sealants are specifically designed to be used with RMA XTRM-PLY PVC roofing membranes. Helps create a watertight seal along the roofs edges, vent, AC units, and screw heads. Cures fast, non-yellowing and highly weather-resistant Antenna. A superior sealant that will not shrink-remains flexible over time. White 10.1 ounce tube, Self-leveling sealant (for horizontal surfaces).