Prepreg is manufactured by pre‐impregnated fabrics, such as carbon, glass and aramid, with various resin systems, but most often epoxy systems. Prepreg are produced in rolls, provide precise resin-to-fiber ratios, and generally require frozen storage. Prepreg sheets are cut using templates or automated cutting machines and then stacked in the mold with a specific orientation to achieve desired mechanical properties. As the layers are assembled, they are debulked with vacuum and vacuum bagging materials to consolidate the layers and remove entrapped air. The mold is then placed in an autoclave where heat and pressure are applied to cure the resin fully and consolidate the layers. Precise control of temperature and pressure ensures optimal resin flow and achieves the desired mechanical and structural properties of the part. Prepreg processing provides exceptional repeatability, high-quality surface finishes, and superior physical properties making it a preferred manufacturing process in industries demanding high-performance composites, such as Aerospace, Automotive, and Sporting Goods.