Welcome to L.W. Reinhold Plastics—a cornerstone of American manufacturing and a premier supplier of custom-molded thermoplastics and thermosets since 1943. Operating from our newly renovated, state-of-the-art facility in Southern California, we bring over 80 years of elite engineering expertise straight to your supply chain. Armed with versatile capabilities of up to 200 tons for injection molding and up to 300 tons for compression/compression transfer molding, we support your project at every stage. From initial design, engineering, and rapid prototyping to CNC machining and building Class A molds, L.W. Reinhold Plastics is your single-source partner for precision manufacturing.