Injection molded glass polyester a high preformance cost competitive material

Injection molding of thermosets has been widely publicized. Recently much of this publicity has been aimed at injection molding of glass reinforced thermoset polyester, primarily in the area of equipment developments which have made this process practical. However, the process itself is still new and mysterious enough that it is not being fully utilized. The objective here is to acquaint potential users of this process with the present “state of the art” of this relatively new technology, and its capabilities in terms of product properties and economics. Injection molding of thermoset glass polyester is no longer just a dream, but is very much a practical and proven method of manufacture today with materials and equipment that are commercia1ly available.