Roof & Gutter Sealant is a premium quality butyl-based sealant and adhesive that provides instant, permanent weather-proofing to a wide variety of roofing applications. Can be applied in wet conditions, even under heavy rain Semi drying – remains permanently plastic beneath surface skin Adheres to most common roofing materials such as bitumen, asphalt, felt, metals and wood Incorporates polymer additives to improve adhesion High solids formulation – excellent gap filling properties without shrinkage Excellent weathering properties