Technical Datasheet Panex® 35 Continuous Tow Commercial Carbon Fiber for Industrial Applications Description Panex® 35 continuous carbon fiber is manufactured from polyacrylonitrile (PAN) precursor. The consistency in yield and mechanical properties that are provided by large filament count strands gives the user the ability to design and manufacture composite materials with greater confidence and allows for efficient and fast buildup of carbon fiber reinforced composite structures. Panex® 35 50K fibers are available with a variety of sizing formats for different composite processing methods and for compatibility with a wide range of standard resin systems. Zoltek quality focuses on spool to spool consistency yielding low coefficients of variation. Material Overview Recommended Use Any article or component benefiting from the unique properties of carbon fiber composites. Applications Wind energy, automotive, petroleum production, aviation, marine, industrial, other transportation, medical (including X-ray), sports and recreation, etc. SI Tensile Strength Tensile Modulus Fiber Diameter Carbon Content Spool Weight Spool Length Electrical Conductivity Density Zoltek Corporation | 3101 McKelvey Rd. | St. Louis, MO 63044 P: 314-291-5110 | F: 314-291-8536 | E: [email protected] | W: www.zoltek.com

Panex® 35 Continuous Tow Typical Packaging Wound on a 3” x 11” (7.6 cm x 28 cm) cardboard spool, sealed in heat shrunk covering, and placed in cardboard box; two splices are permitted per every 1,500m spool and five per every 3,000m spool. Panex® 35 Continuous Tow is manufactured in accordance with Zoltek’s written and published data. A Certificate of Conformance is provided with each shipment. Spool outside diameter: » 1,500 m: 180-185 mm x 255-260 mm » 3,000 m: 235-245 mm x 255-260 mm Germanischer Lloyd (GL) has granted GL approval to Panex® 35 Continuous Tow for use in wind energy applications....