ACST 8506 Butyl Sealant is one component sealant based on butyl rubber. It has excellent performance of low temperature resistance, anti-aging, anti-oxidant, and good flexibility, as well as odorless and smelless. This product is one of the unsolidify sealant, it holds good sealed capability for seal the gap between metal and other material, or metals. It has widely used for waterproof and airproof of steel metal constructions, civil doors and windows, ventilated pipelines and build decoration. Meanwhile, ACST8506 Butyl Sealant is a non drying sealant, it easy to separate from the material surface.