Prepreg for wind blade spar caps

SparPreg, featuring Airstream coating technology, is a specialized prepreg developed by Gurit to enable the economic manufacture of high-quality unidirectional (UD) wind blade spar caps using advanced glass and carbon fibers.

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SparPreg, featuring Airstream coating technology, is a specialized prepreg developed by Gurit (Isle of Wight, U.K.) to enable the economic manufacture of high-quality unidirectional (UD) wind blade spar caps using advanced glass and carbon fibers. Airstream products are designed to address the fundamental problem of creating a high-quality, low-void content laminate without the use of automated equipment or a temperature-controlled environment. With reportedly fast deposition rates and no requirement for intermediate debulking steps, glass and carbon prepreg technology is now readily accessible for all wind turbine blade manufacturers. Features include: Excellent handling and mold conformance characteristics from 15°C to 35°C; low void content in any thickness without the need for cold lay-up or de-bulking; low exotherm resin matrix, enabling low Tg infusion-grade tooling; and compatibility with manual, automated and semi-automated lay-up.