GE Silicone 2, 10.1 OZ, Light Gray, Silicone + Concrete Caulk, 100% Silicone 100% Waterproof & Weatherproof, For Both Vertical & Horizontal Applications On Concrete, Mortar & Stone, Applies To Wet Or Dry Surfaces, Can Be Exposed To Rain In As Little As 30 Minutes & Cures In 24 Hours, Permanently Flexible & Will Not Shrink Or Crack When Subject To Ultraviolet Rays Or Freezing Temperatures, Adhere To Porous Materials Such As Brick & Mortar, Guaranteed For As Long As You Own Your Home.