Polyester seatbelt webbing 62. Seat Belt webbing is a fabric. Webbing; Polyester; Seatbelt Polyester; View as Grid List. 25/ yard Stiff handed, a very strong webbing with a weave similar to a seat belt. Add to compare Compare. Polyester seatbelt webbing strap is generally used for seat belts in road, passenger and industrial vehicles. Nylon was mainly used in the early years of seat belt production. I am obsessing over what thread to acquire and use. 00 A nice strong weave that is similar to a seatbelt. The manufacture of seat belt webbing meets or exceeds the strict safety standards set for the automotive industry. fxyalsmnzhzdjwbafeiybrsjiothoevhscqixwvwldiqemlrqudzcgnbdglpfhgjaaymskljmfevszpj