High-performance urethane methacrylate

Scott Bader has developed Crestapol 1234, the company's latest urethane methacrylate resin system designed to compete with epoxies, poyimides, PEEK, PEI, PES, PEK and even cyanate esters.

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Scott Bader Co. Ltd.’s (Wollaston, U.K.) new Crestapol 1234 urethane methacrylate resin system is designed to compete with epoxies, polyimides, PEEK, PEI, PES, PEK and even cyanate esters. Tests have shown that the resin features a heat deflection temperature (HDT) of more than 300°C/572°F and a thermal decomposition temperature of 330°C/626°F in air and 340°C/644°F in inert gas. Postcure at temperatures greater than the resin’s standard 200°C/392°F postcure temperature reportedly does not affect the decomposition temperature. The resin is being commercialized with a range of viscosities suitable for manufacturing filled and reinforced composite parts by hand layup or closed molding, with a gel time of 16 to 17 minutes.