White Lightning® Stop Gap® Expanding Foam Stop Gap® Minimal Expanding Foam 16 oz.
These products expand to take the shape of gaps and crevices forming an airtight and waterproof bond to most surfaces. STOP GAP!® dries tack free in 15 minutes and cures in 8 hours. It can be trimmed, sanded and painted. Exposure to sunlight will cause discoloration. Exterior usage requires painting.