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Toray TC346 prepreg earns flame-retardancy certifications

Toray TC346 prepreg resin system offers high compression strength, interlaminar shear strength and more for the automotive and motorsport markets. 
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Toray Advanced Composites (Morgan Hill, Calif., U.S.) announced on May 27 that its Toray TC346 prepreg resin system has passed the SFI 56.1 and UL94 V0 flame-retardancy tests. The distinction demonstrates the system’s ability to satisfy the demands of Formula One, NASCAR and other high-performance automotive and motorsport markets in attaining significant performance improvements. 

A high-temperature epoxy system, Toray TC346 was engineered to handle a range of demanding motorsport applications, such as gearbox and suspension components, which require a high service temperature and high toughness. The material is said to offer high compression strength, high interlaminar shear strength, high in-plane shear modulus and good elevated temperature tensile strength. Further, the TC346 system offers a surface finish for aesthetic appeal and controlled resin flow to simplify lay-up and curing production.

According to Toray, other motorsport component applications that require lightweighting, high glass transition temperatures, high compression strength and high fractional toughness would also benefit from the prepreg’s properties. TC346 is available in a wide variety of uni-directional tapes and fabric styles.

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