Sashco 14023 QT Sashco Sealants Through The Roof Sealant, 1-Quart Elastic  flexes with temperature changes and wind Ultra-clear and stays clear - will not yellow over time Lasts 20 times longer than asphalt Excellent UV resistance Adheres to most existing roof patches Paintable Water and mildew resistant Won't freeze-OK to leave in your unheated garage