Hexcel is launching new, fast-curing HexPly M77HF epoxy prepreg in response to the ongoing need to drive down the cost of manufacturing advanced composite industrial parts. This high-flow resin system was developed for a quick three-minute cure cycle using low pressure processing techniques such as cello-wrapping, simple presses, bladder moulding and vacuum-only pressure. Compared to standard epoxy prepregs cure cycles can be reduced by up to 90%, the manufacturer reports.

HexPly M77HF is an expansion of Hexcel’s range of fast reactivity, low tack, high toughness and long out-life resins, providing a prepreg that is specifically suited for processing parameters that require additional resin flow for surface quality, compaction or low voids. HexPly M77HF is also said to have good resin transparency, provide excellent surface quality (without pinholes), and can be supplied with black pigmented resin.