I think you missed the point that the "prepregs were also cured in an OVEN at elevated temps (200+).
You can make your own type of pre-preg and here's how you do it: Just wet your cloth out between 4 mil plastic sheet, sssh, it'll be are lil secret. No one tell Mr Langford, he's a glory hound! Teehee, Larry A Capps Naperville, IL -----Original Message----- They are fabrics that are already are soaked with epoxy. You simply apply them to the surface and you are done. They are put on a sheet of plastic and rolled up in a tube. The epoxy is kept from hardening by storing the prepreg in a freezer. They are usually used in aircraft factories to speed up layups and keep the amount of epoxy consistent.