S-1 HM™ Roving For Your Demanding Wind Energy Turbine Blade Applications AGY, the leading global supplier of high performance glass fibers, introduces S-1 HM™ high performance roving to meet the demanding requirements of the wind energy market. S-1 HM™ High Performance Roving Features & Benefits • The highest tensile modulus glass fiber available in the world – 90 GPa • Proprietary glass formulation designed to maximize performance properties while allowing for high volume, economical manufacture • S-1 HM™ performance vs. typical E-glass: • 20% higher tensile modulus – longer blades with no weight increase, or weight reduction at same length • 50% higher tensile strength – higher loadings • 10x higher fatigue – improved reliability and lower total cost of ownership • Sizing chemistries for both epoxy or polyester resins • Direct roving product form tailored for conversion to unidirectional fabrics and prepregs and multi-axial fabrics • Boron free – environmentally friendly

S-1 HM™ Roving For Your Demanding Wind Energy Turbine Blade Applications S-1 HM™ High Performance Roving Properties AGY Competitive S-1 HM™ R-glass Glass Products Typical E-glass ASTM Units Glass Strand Properties Tensile Strength Tensile Modulus D2343 D2343 MPa GPa 3070 90 2700 83 2000 73 UD Laminate Properties (60% FVF) Tensile Strength Tensile Modulus Compressive Strength Compressive Modulus Flexural Strength D3039 D3039 D3410 D3410 D790 MPa GPa MPa GPa MPa 1504 52 807 51 1367 1150 47 720 46 1260 814 43 531 42 1200 www.agy.com AGY – World Headquarters / Americas 2556 Wagener Road Aiken, South...