n A method of forming and curing reinforced plastic laminates employing a flexible bag or mattress to apply pressure uniformly over one surface of the laminate. A perform comprising a fibrous sheet impregnated with an A- or B-state resin is placed over or in a rigid mold forming one surface of the article. The bag is applied to the upper surface, then pressure is applied by vacuum, in an autoclave, in a press, or by inflating the bag. Heat may be applied by steam in the autoclave, or through the rigid half of the mod. When an autoclave is used, the process is sometimes called autoclave molding.