Super Elasto-Barrier is a waterbase, pure, liquid, dual-rubber coating used for roof, wall, and roof deck waterproofing in difficult situations such as ponding water. It waterproofs plywood siding, and seals hard to stop leaks. Super Elasto-Barrier is UV (ultra violet) sensitive and requires topcoating. Up to 1000% elastic. Formulated for cool weather application. Apply down to 32 F (degrees Fahrenheit). Year round application.