Dover High Performance Plastics

Company record

Dover High Performance Plastics manufactures custom valve seats, shaft seals, gaskets, and a broad array of components such as bushings, bearings, connectors, diaphragms, and various O‑ring types. The catalog also includes baffles, bobbins, clamps, liners, plugs, vanes, insulators, packings, balls, and wear strips. All parts are produced from materials including PTFE, polycarbonate, polypropylene, acetal, polyimide, Ryton®, and Ultem®. The firm supports both prototype development and production runs ranging from short batches to high‑volume orders. Machining capabilities feature precision CNC and screw machining with operations such as drilling, cutting, vertical and horizontal milling, boring, broaching, as well as engine, turret, and automated lathe processes. Compression molding and insert molding are also available. Secondary services encompass deburring, lapping, etching, surface finishing, and packaging. Dover High Performance Plastics serves customers in electronics, aerospace, automotive, electrical, construction, food, irrigation, and medical sectors, meeting Mil‑Spec, ASTM, AMS, RoHS, and REACH standards.

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