COLPHENE® BSW V

COLPHENE BSW-V is a 120 mil sheet composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen, reinforced with a tough, dimensionally stable composite polyester/glass fiber reinforcement. The topside is surfaced with fine mineral aggregate that adheres to poured concrete and shotcrete. The backside features a silicone release film that is removed during application to ensure adherence to the lagging. COLPHENE BSW-V also includes an engineered DUO SELVEDGE edge on the top side of the roll, which is overlapped with adjacent membranes and heat-welded to seal the lap.