WeatherBond's Cut-Edge Sealant is a medium solids content, free-flowing, polymeric material designed to be used for sealing cut edges of WeatherBond PRO TPO Reinforced Membrane. It is available in clear for use with various colors of WeatherBond PRO TPO Membrane. WeatherBond PRO Cut-Edge Sealant is used to seal cut edges of TPO membrane, providing a waterproof barrier where scrim reinforcement is exposed.