Sikaflex Insulation Sealant and Adhesive is a universal flashing sealant designed to adhere to a wide range of air, vapor and weather barrier surfaces. This adhesive provides an excellent seal at transitions between dissimilar materials. It can be used for weather sealing where low movement is expected. Excellent adhesion to a wide range of surfaces such as polyethylene/polypropylene surfaces, common polyolefins, PVC, steel, metals, aluminum, glass, and more.