S-1 HM fiberglass rovings for wind-turbine blades have 90 GPa tensile modulus, as measured by ASTM D2343, over 20% higher than typical E-Glass. Tensile strength is 85% higher, compressive strength is 50% higher, and compressive modulus is 20% higher. Compared to high-strength glass rovings, S-1 HM rovings have 30% higher tensile strength, 10% higher tensile modulus, 12% higher compressive strength, and 10% higher compressive modulus.

S-1 HM rovings come in a range of yields for both epoxy and polyester resin systems. The direct roving product form is tailored for standard conversion to unidirectional fabrics and prepregs and multiaxial fabrics.

AGY, 2556 Wagener Rd., Aiken, SC 29801, (803) 648-8351, www.agy.com