The HT fabrics are fashioned after the standard, high volume e-glass aerospace 7781 and 120 styles. Complimenting these styles in fabric areal weight and weave pattern, 6781HT and 220HT have similar characteristics in fabric hand, flexibility, weight, and thickness; but, with the added benefit of superior impact resistance, tensile strength, and bond integrity using S-2 glass® fiber.

The dry fabric tensile strength for HT fabrics is dramatically higher than typical S-2 glass® fabrics made with standard starch oil sizing. Starch oil size fabrics require heat cleaning prior to finishing, significantly reducing fiber tensile strength. The HT fabrics have a simple yet effective organic sizing compatible with high temperature Epoxy, BMI, Phenolics, Cynate Esters, Thermoplastics, Polyamide, Polyimide, PEI, PEEK, PAI, LCP and others.