! j I I - National Roofing Contractors Association

Neoprene lPolychloroprene)Part 2: Test ResultsTest description and suggested values as specified in ASTM Standard D4637-871. Company Name GEC GEC G(XX)YEARINDUSTRIES INDUSTRIES TIRE &INC INC RUBBERCt»IPANY2. Product Name GATES GATES WINGPRENESYSTEM II SYSTEM II NE~RENENEO-GRAY NEO-BLACK BLACK3. Grade 1 (greater than 95% principal polymer) or 1 1 1Grade 2 (50% to B5% principalpolymer)4. Class U (unreinforced) or U U UClass SR (scrim or labric internallyreinforced)5. Thicknesa (min in)Sheel overall Clesa U 0.039 0.060 0.060 0.055Sheel overall Cia.. SR 0.030 NA NA NACoating over scrim Clasa SR O.OOB NA NA NA6. Breaking Strenglh (min Ibl) Class SR 60 NA NA NA7. Tensile Slrength (min psi) Class U 1595 1400 1800 15956. Elongation, Ultimate (min.%)Clasa U 250 750 300 250Clasa SR 200 NA NA NA9. Tensile Set max %) Class U 10 1010. Tear Resistance (min Ibltin) Class U 150 m- m- 12511. Tearing Strength (min Ibf) Class SR 10 NA NA NA12. Brittleness Point (max. OF) -31 -40 -40 -3113. Ozone Resistance (pass/fail) no cracks - PASS PASS14. Heal AgingBreaking Strenglh (min Ibl) Clasa SR 75 NA NA NATensile Strength (min psi) Class U 1350 1000 1400 1350Elongation, Ultimate (min %) 150 500 150 150Tear Resistance (min Ibltin) Class U 125 125Linear Oimensional Change (max %) --ClasaU :t2 - - +-2Clasa SR :to.5 NA NA NA15. Water Absorption (max mass %) :t10 5 1 +-10'16. Factory Seam Strength (min Ibltin) 51 orsheet lallureX17. Weather Resistance (pass/fail) no cracks - - PASSor crazing - -16. See Membrane Appendix II chec-.149