COLPHENE® 3000 is a self-adhered, SBS-modified bitumen membrane for use in approved waterproofing assemblies. COLPHENE 3000 is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen. The topside is surfaced with a tri-laminated woven polyethylene facer and the underside is surfaced with a silicone release film that is removed during application.