The reinforcement fabric such as carbon fiber or fiberglass in an industry term called Pre-pregs, that has been pre-impregnated with a mixture of epoxy resins, hardeners and accelerators. The prepreg is pre-cured, kept in low temperature (lower than -10) and prepare to cut to proper size. Afterwards, prepregs are being cured in a mold at temperature above 100 C up to 150 in an autoclave. These prepregs are used by producers to create parts requiring lightweight, high-quality result thought-out various industries involving aviation, medical, automotive, racing, sporting goods tennis etc.