For rigid, semi-rigid and flexible urethane foams. Made especially for polyurethanes. Paintable nonsilicone. Non-toxic and no chlorinated solvents. Non-marking. An extremely effective mold release for all polyurethanes, Urethane mold release imparts a light, dry coating on the mold, eliminating build-up. Yet, it is so effective that it continues to work for several cycles between applications.