COLVENT SA

COLVENT™ SA is an SBS-modified bitumen base ply for use in approved multi-ply membrane and flashing assemblies. COLVENT SA is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen in combination with high tack self-adhesive ribbons and is reinforced with a high quality random glass fiber mat. The ribbon strips are arranged in a pattern to vent vapor pressure between the substrate and the COLVENT SA. The topside is surfaced with fine mineral aggregate to optimize cold adhesive and hot asphalt applications and the underside is surfaced with protective polyolefin release film that is removed during application.