Family owned and Operated since 1968 Sinicon Plastics is a custom injection molder who specializes in engineering resins. Sinicon first started molding PEEK and Ultem in the late 80's and we have been running glass filled materials since the 70's. We do everything from prototyping to production, with annual volumes ranging from hundreds of parts to millions. Sinicon also does insert molding and over-molding on a daily basis. Combined with our ability to do post mold machining, printing, assembly, and packaging, Sinicon Plastics is truly a one stop shop.