SOPRAWALK is an SBS-modified bitumen ply designed to create a walk path and protect the field membrane from traffic. SOPRAWALK is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with a tough, dimensionally stable non-woven polyester mat. The topside is surfaced with ceramic-coated granules, while the underside is surfaced with fine mineral aggregate to facilitate heat welding, cold adhesive, and hot asphalt applications.
