Specifications: Material: 100% polyester (polyester filament fiber and polyester staple fiber) Width (cm): 102 cm Weight (g/s2):160-450g/m2 Non woven polyester felt Material: 100% polyester (polyester filament fiber and polyester staple fiber) Features: high intensity, high extension, and puncture resistance Width (cm): 102 Weight (g/s2): 160-450 Color: White In order to meet customer’s different requirement, we divide the materials into Grade A, B, C by breaking strength. The index is same as waterproof standard. According to the national standard test method, the usual item tests such as heat resistance, flexibility, impregnation and water resistance tests all have detailed experiment. Item A Grade B Grade C Grade Note Breaking strength N>= 700 450 350 Length breadth Breaking strength Min>= 450 380 300 Length breadth Elongation break% 30 25 20 Length breadth Width deviation Not allowed deviation Meet standard requirement Length elongation<= 2 2.5 Breadth shrinkage<= 2 2.5 Non woven polyester felt