COLPHENE® 180 SP is an SBS-modified bitumen base ply for use in approved multi-ply membrane waterproofing assemblies. COLPHENE 180 SP is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with tough, dimensionally stable non-woven polyester mat. The topside is surfaced with fine mineral aggregate and underside is surfaced with polyolefin burn-off film to optimize heat welding.
Prior to installation, unroll COLPHENE 180 SP onto the surface and allow to relax. Position COLPHENE 180 SP in desired position and back roll the product. COLPHENE 180 SP is then heat welded to approved substrates. Subsequent approved inter-ply or cap ply membranes are applied to COLPHENE 180 SP via cold adhesive or hot asphalt. Refer to SOPREMA® specifications and installation instructions for additional application guidelines.