Survol RV Roof Sealant has excellent adhesion on concrete, creates a strong seal along the RV's roof edges, air vents and windows | Unrivaled Bonding with many substrates including aluminum, brass, steel, glass, mortar, wood, PVC, EPDM, TPO, TPV, window and more. With superior, weather resistance and sealing properties, Survol silicon sealer remains flexible for years | Watertight Seal, RV Caulking Sealant prevents leaks with its waterproof and breathable seal that will not shrink and stays flexible, making it a long-lasting solution for all your caulking and sealing needs | Premium grade, strong formula ensures an excellent bond, making long-lasting life ensures that you have no trouble about resealing or replacing your caulking for years to come. Working Temps: -40° F to 200° F | Permanently flexible and will not shrink or crack when subjected to extreme weather conditions