Dicor Products new Gunnable butyl rubber sealant is a single component, solvent release butyl-based sealant specifically designed to provide a watertight primary seal between lapping substrates and joints. It is easy to apply and tool and exhibits superior adhesion to a variety of clean surfaces. Butyl rubber sealant shows excellent resistance to weathering, shrinking and cracking. Its gun-ability allows for a mess-free application, forming an airtight seal and will leave you with a seamless finish.