Grand Traverse Plastics, GTP

Company record

Grand Traverse Plastics (GTP) designs and manufactures a range of custom plastic components, including engine covers, oil‑fill caps and tubes, oil‑galley plugs, brackets, assemblies, and battery parts. The company works with materials such as acrylonitrile butadiene styrene (ABS), various polymers and resins, high‑density and low‑density polyethylene, polyphenylene sulfide (PPS), polypropylene (PP), and additional engineered plastics. Its product portfolio also comprises pumps, transmission baffles, coolant valves, housings, conveyor parts, manifolds, and C‑channels. For seat‑belt systems, GTP supplies buckle release buttons, retainers, adjusters, and stoppers. Manufacturing capabilities include injection molding, rapid prototyping, and additive manufacturing via 3D printing, supporting both prototype development and full‑scale production runs. The firm further offers secondary processes such as welding, pad printing, and hot stamping. Grand Traverse Plastics serves customers in the automotive, military, material‑handling, packaging, and marine sectors.

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