GREAT STUFF Premium Ultimate Construction is one component, moisture curing, high performance hybrid-based sealing material. It is a new generation of isocyanate-solvent free sealant that brings together all the mechanical properties of polyurethane and silicone sealant. This high-performance hybrid is easy to use, low odor and paintable. It is non-yellowing. Can be used for insulation of window and door elements, connection joints of wood and metal structures, installation and insulation of facade elements, kitchen and bathroom sealing applications, building facades, roof constructions and concrete joints.