SmartFlash flashing membranes are two-component, UV-stable, cold fluid-applied polyester-reinforced, solvent-free, odor-free polyurethane systems which are compatible with CertainTeed modified bitumen and built-up roofing assemblies. SmartFlash Flash Pack is a versatile high-performance, seamless and self-terminating waterproofing system that includes all the tools and materials necessary to flash and repair approximately 25 square feet of area. SmartFlash, when cured, virtually becomes part of the substrate. SmartFlash membranes form full closure to irregular flashings and penetrations of every imaginable shape, eliminating the need for pitch pockets.