Polyglass’ Elastoflex membranes are high quality elastomeric, SBS (Styrene-Butadiene-Styrene) modified asphalt roofing membranes reinforced with a non-woven 180 or 250 gram polyester mat. The Elastoflex S6 G, is available with either Polyethylene burn off film for heat welded applications, or sand backed for hot mop or cold adhesive. With superior reinforcement and proprietary formulation, this granulated cap sheet exhibits exceptional tensile strength, puncture resistance, and dimensional stability. The granulated surface, provides long term UV protection. The Elastoflex S6 G membranes meet, or exceed, the requirements for ASTM D-6164 Type II, are listed by UL and can be used as part of a Polyglass warranted roof assembly.