Foam reservoir molding

This process, also known as elastic reservoir molding, consists of making basically a sandwich of resin-impregnated open-celled flexible polyurethane foam between the face layers of fibrous reinforcements. When this composite is placed in a mold and squeezed, the foam is compressed, forcing the resin outward and into the reinforcement. The elastic foam exerts sufficient pressure to force the resin impregnated reinforcement into contact with the mold surface. 

The term reinforced plastic (RP) refers to combinations of plastic (matrix) and reinforcing materials that predominantly come 

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