COLPHENE® SP 2.2 (sanded, polyolefin) is an SBS-modified bitumen base ply for use in approved multi-ply waterproofing assemblies. COLPHENE SP 2.2 is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with a high quality random glass fiber 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 SP 2.2 onto the surface and allow to relax. Position COLPHENE SP 2.2 in desired position and back roll the product. COLPHENE SP 2.2 is then heat welded to approved substrates. Subsequent approved inter-ply or cap ply membranes are applied to COLPHENE SP 2.2 via cold adhesive or hot asphalt. Refer to the SOPREMA® specifications and installation instructions for additional application guidelines.