**4.3 Vacuum and oven processing**

Processing in a vacuum and in the oven is the processing of pre-impregnated fabrics and fabrics soaked in resin film is performed at atmospheric pressure and at elevated temperature. The vacuum bag surrounds the composite which binds the hermetic membrane and uses the ambient atmospheric pressure to compress the product in the vacuum bag, and, at the same time, heat is applied to the composite structure

so that it takes the shape of a mold during the curing process. For all resin content used for the matrix is accurately set by the manufacturer. Using this method, higher fiber contents can be achieved. The disadvantage is higher material cost than previously described methods. The processing cost can be high, because of the autoclave required to cure the composite using high temperature and pressure.
