SOPRALENE 180 SANDED 2.2 is an SBS-modified bitumen membrane approved for use in roofing assemblies. SOPRALENE 180 SANDED 2.2 is reinforced with a tough, dimensionally stable non-woven polyester mat that is saturated and coated on both sides with a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen.
