Unlike other protective fabric manufacturers which use aramid fiber as main composition, OxinForce^® fabrics are made with at least 50% OPF which has the highest L.O.I., blended with other high performance inherently FR fibers, to provide the best FR products in the market. OPF is normally used in industrial applications due to it being difficult to spin and weave. OxinForce^® has overcome this problem through its R & D and applied OPF in protective clothing, offering wearer higher protection than apparel made from pure aramid. With an annual OPF consumption of 300 tons, OxinForce^®is the world's leading and largest OPF textile manufacturer.

Limiting Oxygen Index (L.O.I.) is a common indicator for evaluating flame resistance. It indicates the lowest oxygen ratio by volume required to remain properly burning in a mixture of oxygen and nitrogen. The higher the index, the more oxygen is required, which means harder to burn and more flame-resistant the material is. A comparison of LOIs of commonly seen FR raw