Portnoy and Tu, DDS, PC Family Dentistry

Operational for over 30 years, Molded Plastic Industries Inc. has been manufacturing fiberglass composite and vacuum plastic parts. The company provides a wide range of fiberglass composite molding options, such as resin transfer, vacuum, open and compression. It has in-house capabilities to design and build epoxy composite molding dies, as well as automated auxiliary trim and assembly fixtures. Situated in Holt, Mich., Molded Plastic Industries Inc. produces a variety of products, such as pontoon boat roofs, cornices, signs and kit car bodies among others.

E-T-M Enterprises produces a variety of reinforced fiberglass components. Founded in 1970, the company also offers prototyping and in-house tooling services. Its production department specializes in resin transfer molding, vinyl vacuum wrapping, prime painting, finishing and power washing. The company s testing laboratory performs resin gel testing, viscosity checks and dock audits. The company s engineers and toolmakers develop several prototypes and production tools, such as trimming, bonding, drilling and checking fixtures and prototyping panels. E-T-M Enterprises, with a location in Grand Ledge, Mich., also operates a tooling shop in Michigan. Its Web site features the company s projects and photographs.