Woven silt film geotextiles are woven from durable uv stabilized, high strength, black polypropylene tape yarns. We produce available in varying tensile strengths to suit particular project demands. Property Test Unit G200 G250 G315 W200 W315 Tensile strength Astm d-4632 Lb 200x200 250x250 315x315 200x180 315x280 Elongation Astm d-4632 % 15~20 15~20 15~20 15~20 15~20 Cbr puncture Astm d-4833 Lb 700 750 900 560 800 Trapezoildal tear Astm d-4533 Lb 75 90 115 60 95 Apparent openings Size (aos) Astm d-4751 Us sieve 40 40 40 40 40 Permittivity Astm d-4491 Sec-1 0.05 0.05 0.05 0.05 0.05 Water flow rate Astm d-4491 Gpm/ft2 4 4 4 4 4 Uv resistance Astm d-4355 %@500hrs 70 70 70 70 70 Mass per unite area Oz/yd2 Gsm 4.3 145 5.5 186 7.2 245 3.9 135 6.1 210 Standard roll size 12.5, x 432, / 3.81m x 131.7m 15, x 360, / 4.57m x 109.8m 17.5, x 360, / 5.33m x 94.2m Remarks Other strengths on request; max. Roll widths 8m