Star Brite® Caulking, Silicone, Clear, 2.8 oz tube. 100% marine-grade silicone, won't turn yellow. Remains flexible from -70F to +480F. Bonds to fiberglass, plastic, wood, glass & metal. Unaffected by sunlight, weathering, most chemicals & solvents. Will not shrink or sag. Special formula can be used above or below waterline.