Prepreg covers reinforcement fabrics — typically carbon, glass, or aramid fibre in unidirectional tape or woven cloth form — pre-impregnated with a controlled quantity of partially cured thermoset or thermoplastic matrix resin, supplied in roll form under refrigerated storage and processed via autoclave cure, out-of-autoclave (OOA) methods, or automated fibre placement (AFP) to produce structural aerospace laminates.
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