DAP Silicone Max Premium Window and Door 100% Silicone Sealant provides maximum silicone performance to seal out air and water in window, door and siding applications. It provides maximum flexibility and adhesion to withstand contraction and expansion caused by temperature and weather fluctuations without cracking or losing adhesion. It provides a strong, 100% waterproof and weatherproof seal that is backed by a lifetime durability guarantee. Rain ready in just 30 minutes to save you time.