Zoltek Carbon Fiber, Wind Energy, Automotive, Offshore Drilling, Infrastructure, Prepreg Carbon Fiber Chopped, Fabric, Carbon Fiber Spools, Tow, Prepreg
Panex 35 has created the standard in wind turbine reinforcement:
- A more slender blade profile
- A lighter, longer, stiffer, and stronger wind turbine blade
- An overall more efficient wind turbine
- Reliable carbon fiber at a sustainable price
Zoltek’s uni-directional fabrics and prepreg tapes are pushing the wind energy industry to higher levels of performance. Longer and lighter blades mean more energy output per revolution.

Zoltek’s advanced processes and tools allow simple, high-speed lay-down of carbon fiber tow, prepreg, and fabrics. Our proprietary material dispensing tools (used for prepreg or fabrics) have accelerated the application process saving our customers time and money. Additionally, Zoltek provides comprehensive technical support for spar cap manufacturing.
Without a single blade failure since it was adopted in 2004, Panex 35 has become the dominant carbon fiber in wind energy.
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Prepreg
Zoltek’s heavy areal weight carbon fiber prepregs are ideal for rapidly building up part thickness with excellent composite properties, and allows for higher manufacturing throughput at a lower cost. A wide selection of epoxy resin formulations meets a variety of processing and composite property requirements for tack, toughness, flow in cure, surface finish, cure time, cure temperature, and delivered composite strength and modulus.
More on Zoltek Prepreg
Fabrics
Zoltek’s Infusable Carbon Fiber Uni-Directional Fabrics are specifically constructed for enhanced infusibility and allow for a rapid build-up of part thickness. Unique fiber spreading techniques enable a wide range of fabric weights and constructions for composite part applications.
Continuous Tow
Zoltek’s Continuous Carbon Fiber Tow is the premier commercial carbon fiber on the market. It is a 50K filament fiber available in a range of sizings for optimal processing and compatibility with a variety of resin systems. Zoltek’s quality system focuses on spool-to-spool consistency yielding low coefficients of variation.
Design Support
Blade Design and Manufacturing Assistance
Zoltek’s advanced processes and tools allow simple, high-speed lay-down of carbon fiber tow, prepreg, and fabrics. Our prepreg dispensing tools have accelerated the application process saving our customers time and money. Additionally, Zoltek provides comprehensive technical support for sparcap manufacturing.
