High tensile Polyester is characterized by its dimensional stability at high temperatures, high breaking strengths, excellent resistance to mildew and acids, with good aging, abrasion resistance, high tensile strength, resilience and resistance to stretching, as well as, superior compressibility.

Treated constructed fibers are easily mixed and dispersed with conventional rubber equipment such as internal mixers, and mixing mills. Anisotropic alignment of the fibrils in the machine direction allows for directional reinforcement in subsequent molding operations. Typically, longer fibers are best used in compression, transfer, low head pressure extrusion and calendaring machinery. Polyester fibers can also be used in low sheer open mixers where breakdown of the fiber bundle is unintended.