ELASTOPHENE® SP 2.2 (sanded, polyolefin) is an SBS-modified bitumen base ply for use in approved multi-ply membrane and flashing assemblies. ELASTOPHENE 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 are surfaced with polyolefin burn-off film to optimize heat welding.
Prior to installation, unroll ELASTOPHENE SP 2.2 onto the roof surface and allow to relax. Position ELASTOPHENE SP 2.2 in desired position and back roll the product. ELASTOPHENE SP 2.2 is then heat welded to approved substrates. Subsequent approved inter-ply or cap ply membranes are applied to ELASTOPHENE SP 2.2 via cold adhesive or hot asphalt. Refer to the SOPREMA® SBS Roofing Manual for additional application guidelines.