GE Silicone Concrete Caulk GE5020

GE Silicone II* concrete 100% silicone is a 30 min rain-ready and weatherproof caulk for use in concrete and masonry applications. Even if rain is likely, silicone II concrete can be used because it can be exposed to rain in as little as 30 minutes. GE Silicone II concrete dries in 30 minutes and fully cures in 24 hours. Once cured, silicone II* concrete is sun- and freeze-proof so it will not shrink, crack, break down or wash away even when exposed to harsh weather such as extreme heat or freezing temperatures.