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Engineering

We strive to be your plastic engineering partner from education to material selection, thru component design.

Custom Fabrication

TriStar excels in custom plastic fabrication from Prototype to Production.

Featured Products
CJ Bearings TriSteel™ Ultracomp® Rulon® Bearings Rulon® Materials Meldin®
Manufacturing

We manufacture a wide range of bearing materials that are ideal for non-lubricated high-load applications.

High Performance Plastics

We have quality High Performance Plastic materials available for the most demanding applications.

Saint-Gobain

TriStar is the exclusive partner for the Rulon, Meldin and Fluoroloy product lines in North America with the largest global inventory for immediate shipment.

Enhanced Materials

Cutting-edge enhancements that improve and extend the performance of polymers, elastomers, and specialized membranes.

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Material Database

With hundreds of high-performance bearing materials to choose from, utilize our material database to filter your search for the exact match for your application.

Technical Library

Our technical library is a knowledge database from application data sheets, brochures to engineering worksheets to research and start your next project.

Tech Talk Blog

A series of quick reads on the best materials for the most demanding applications in your industry.

White Papers

Explore our library of FREE white papers which dive into composite bearings, plastics, and industries where high-performance materials make a significant impact.

The Shooting Star

A monthly technical brief highlighting the latest in bearing material technology. Sign up for auto delivery.

Video Learning Center

We have produced over 100 educational videos ranging from bearing design, bonding plastics surface modification and many more topics.

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About Us

TriStar Plastics, LLC provides engineering, custom fabrication and manufacturing of high-performance plastics and self-lubricating bearings materials. The Company’s capabilities include component design, material selection, prototype, production, manufacturing, and surface modification.

Locations

The Company’s principal location is in Shrewsbury, Massachusetts, with additional sales and distribution centers in Denver, North Carolina, Yorba Linda, California and Hoffman Estates, Illinois. Click here for details and directions.

Employment

We are dedicated to building a company where opportunities exist for hard working people to achieve their maximum potential. Apply today.

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Contact Us

Reach out to us for a material quote, to compliment a staff member, or with a question you may have.

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Have a material or an application question for our engineering team or want to upload a drawing? Your Project stats here…

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Meldin® 3100 Series | Bearing Grade Polyetherimide 

Meldin® 3100

Meldin® 3100 bearing grade materials have excellent mechanical properties in tension and compression and maintain an impressive level of these attributes as operating temperatures increase.

These properties add extreme strength and rigidity to component parts, even in narrow cross-section.

Meldin® 3100 components are manufactured by an injection molding process, which allows for close tolerances without the complication and cost of secondary machining.

Need More Info about Meldin® 3100 Series Materials?

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Meldin® 3100 Series Grades

Grade Description

Meldin® 3110

This bearing formulation has a very low coefficient of friction and is particularly well suited for use with soft mating surface materials such as aluminum and soft stainless steel.

Meldin® 3120

An excellent multi-purpose, wear resistant material that is suitable for bearing, thrust washer, and piston ring applications. It also has a low coefficient of thermal expansion.

Meldin® 3130

This grade provides good strength and stiffness in addition to excellent high velocity performance. Can be used with both hard and soft mating surfaces.

Meldin® 3140

An ideal thrust washer material and is well suited for thrust washer applications. Its high strength and stiffness, combined with its excellent heat dissipation properties, make it an excellent choice for high pressure loading applications.