Specifications: polyester mat/felt substrate for SBS/APP waterproofing material 100% polyester made in China Plyester mat Area Weight g/ m2 Item 120 140 160 180 200 220 250 280 Tensile Strength Longitudinal 5cm/N ≥180 ≥280 ≥320 ≥340 ≥450 ≥500 ≥600 ≥800 Crosswise 5cm/N ≥220 ≥320 ≥340 ≥380 ≥420 ≥480 ≥550 ≥780 Elongation Longitudinal % ≥16 ≥20 ≥25 ≥28 ≥32 ≥35 ≥35 ≥40 Crosswise % ≥20 ≥25 ≥30 ≥35 ≥40 ≥45 ≥45 ≥45 180°CShrinkage % ≤2.0 ≤2.0 ≤2.0 ≤2.0 ≤2.0 ≤2.0 ≤2.0 ≤2.0 Thickness(mm) 0.5~0.6 0.6~0.7 0.7~0.8 0.9~1.0 1.0~1.3 1.0~1.4 1.3~1.4 1.4~1.5 Length per roll m 1650 1500 1300 1260 1000 1000 900 900 Breadth Common standard: 1.01m or 1.02 m non woven polyester mat for APP SBS waterproof membrane