Ever wondered how those sleek carbon fiber panels on hypercars or wind turbine blades get their ninja-like strength? Enter prepreg composites, the pre-loaded powerhouses of advanced materials. Picture carbon, glass, or aramid fibers soaked in epoxy or thermoplastic resin, then frozen or chilled to halt curing until you're ready to bake them into shape. It's like dough that's pre-mixed... http://www.dexcraft.com/articles/carbon-fiber-composites/prepreg-autoclave/