About GAF Premium Acrylic HydroStop™ Top Coat

GAF Premium Acrylic HydroStop® Top Coat can be used in a variety of substrates to help provide protection against damage from exposure to UV and weather elements.  Used in conjunction with HydroStop®  Base Coat and Premium Fabric, it creates the GAF Premium Acrylic HydroStop® System, a liquid-applied membrane for recover, reroof, and new roof applications.