SOPRALENE® 180 PS 2.2 is an SBS-modified bitumen base ply for use in approved multi-ply membrane and flashing assemblies. SOPRALENE 180 PS 2.2 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 polyolefin (P) burn-off film and the underside is surfaced with fine mineral aggregate (S) to facilitate cold adhesive and hot asphalt applications.
Prior to installation, unroll SOPRALENE 180 PS 2.2 onto the roof surface and allow to relax. Place SOPRALENE 180 PS 2.2 in desired position and back roll the product. Apply approved cold adhesive or hot asphalt following manufacturer specifications. SOPRALENE 180 PS 2.2 is then rolled into the cold adhesive or hot asphalt and subsequently rolled with a weighted roller. Subsequent approved inter-ply or cap ply membranes are applied to SOPRALENE 180 PS 2.2 via heat welding. Refer to the SOPREMA® SBS Roofing Manual for additional application guidelines.