Crafco PCF-100 is a single component, hot applied, polymer modified, asphalt based product that is specifically formulated to be used as bonding adhesive, primer and sealing mastic for geo-composite waterproofing membrane installations. PCF-100 is supplied in solid form, which when melted and properly applied bonds strongly to asphalt, concrete, wood or metal surfaces, and adheres to geocomposite membranes. PCF-100 can also be used as hot-applied sealing mastic at overlaps, edges, protrusions and terminations of fabric or film backed membrane waterproofing products. When melted and heated to proper temperature for the specific usage, PCF-100 is a low viscosity, free flowing, self-leveling product that is easily applied and leveled to the desired application rate, and which penetrates and bonds membrane fabrics. PCF-100 can also be used as a general purpose pavement crack or joint sealing product.