We are manuacturer which is specilized in producing polyester mat layer for sbs/app bitumen membane. Our products are widely accepted by customers from south america and asian markets. Features of polyester mat for bitumen membrane: 1) ideal substrate material for asphalt waterproofing rolls and shingles 2) act as reinforcement layer in bitumen waterproof materials, with sbs or app memrane 3) excellent binding strength with sbs/app modified bitumen 4) high tensile strength, high tear strength, higher elongation property, higher measure stability and resist shrinking in the high temprature process 5) corrosion resistance, aging resistance, thermal stability, good soak in bitumen oil 6) protect polymer foam insulation from the damaging effect caused by chemical solvents in bitumen to prolong the life time of heat insulation layer The mat has weight range rom 120gsm-220gsm for usual, and have white and green color for your chosen. Size: 1.02x1350m/roll Diameter:1.03-1.03m Weight:256kg/roll(defferent from gsm)