Provides joint-free seamless waterproofing, is a roof paint and protective barrier that encapsulates and extends the lifespan of your roof. Used with Duram Duramesh membrane, it withstands cracking and movement of the underlying surface. Excellent adhesion to a variety of substrates and withstands varying roof temperatures. Pure acrylic polymer waterproof coating. Exceptional flexibility and elongation > 400%. Long-term protection with a 12-year guarantee.