Polymer Corporation/Polymer Liquid Resin Casting/
Polymer Marine:

180 Pleasant Street Rockland, MA 02370


Polymer Injection Molding/Gun Valley Molders:
One Third Street
Palmer, MA 01069


Sam and Jim Snyder

Company Overview ...

In 1979, two brothers, Sam and Jim Snyder, recognized that Boston's high-tech companies, especially those producing high-dollar value capital equipment (e.g., medical, semiconductor, defense) were searching for better solutions for their low-volume, close-tolerance plastic parts needs. These companies wanted

  • short time to first article
  • minimal tooling costs
  • parts in a variety of materials to meet a wide range of tough performance specifications
  • flexibility to incorporate design changes without expensive and lengthy tooling modifications, and
  • first rate engineering and project management support

The Snyders formed what is now Polymer Corporation and developed a unique Liquid Resin Casting™ process to meet these needs. Over the years, they continued to refine and extend this process and became widely recognized for their technical advances. As a result, Polymer became the world's leading manufacturer of liquid resin cast parts.

Polymer today has evolved from a small, family-owned business into a substantial company owned by management and a select group of major institutional investors. Still focused exclusively on low-volume manufacturing of high-precision plastic parts and assemblies, we offer

  • Liquid Resin Casting
  • Injection molding
  • Machining
  • Rapid prototypes and fully functional quick-turn ProtoParts

Many of our customers rely on us for more than one of these processes as a product progresses through its life cycle.

Polymer services blue chip customers nationwide from two ISO 9001:2008 registered facilities in the U.S. We also produce injection molded parts and tooling in Asia.

Urethane castings,Epoxy casting,Resin casting,Silicone castings,Silicone molding,Low volume production,Custom plastic parts,Silicone molds, Thermoset resins,Autoclavable material,Medical parts,Ultrasound probes,Clear plastic parts,Encapsulations,Medical encapsulations,Electronic encapsulations, Vaginal probe,MRI coil housings,Prototyping,Rapid prototyping,Phantoms,Semiconductor equipment,Test equipment,Medical instrumentation,Medical devices, Rebreather components,Safety equipment,Defense products,Elastomeric molding,Rapid tooling,Injection molding,Scientific instrumentation,Potting,Electrical connectors, Propellers,Surgical training aids,Medical models,Laser devices,Polyurethane,Aviation parts,Security products,Rubber molds,Embedded electronics,Plastic parts, Biocompatible materials,Pad printing,Silk Screening,Hot Stamping,Camo dipping,Bridge tooling,MUD tooling,Painting,Shielding,Laser etching,Machined plastic parts, Part Assembly,KANBAN,Overmolding,Insert molding,Gunstocks,Recoi pads,Aerospace,Military parts,ISO 9000:2008,Engineering grade resins,Asian tooling,Domestic tooling, Environmental housings,Industrial housings,Enclosures,ITAR,FFL