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Bearing Materials

TriStar offers a wide range of bearing materials that are ideal for non-lubricated, high-load applications.

Saint Gobain Materials

TriStar is the exclusive partner of Saint Gobain for Rulon materials in North America. 

Materials and Fabrication

Our capabilities include component design, material selection, prototype, production, and manufacturing.

Materials Database

Use our interactive database to search for and compare over 450 materials.


Surface Modification

Learn how our Enhanced Materials Divison (EMD) modifies existing materials to meet specific needs.



Since 1982 we have been combining the skills of TriStar’s engineering team, our extensive product line, and our deep understanding of a broad range of industries to bring you solutions to your most challenging engineering needs.

Problems / Solutions

Explore the common causes of bearing failure and learn how advanced polymer and composite bearings can address them.

Application Case Studies

Enhanced Materials Division (EMD)

EMD  positions TriStar Plastics as the leading resource to solve your demanding engineering material challenges.

Enhanced Materials Division (EMD)


View our library of engineering worksheets — the quickest way to communicate your project specs — or reach out to our engineering team.


Here are a few of our most popular online engineering tools - including our PV calc and material database (450+ materials).


Learn about our quality program and view our current ISO cert.


Technical Library

Our collection of case studies, product specs, brochures and other key technical documents.

Free White Papers

Our library of free-to-download white papers focus on industry-based solutions, specific materials, bearing design, and more...

All White Papers

Deep Dives

These pillar pages provide in-depth information on bearings and problem/solutions for specific industires.

All Pillar Pages

More Resources

Our popular resources, including our monthly newsletters, blog, and our video library.

Education Overview


TriStar Plastics Corp. Webstore

Customer Portal

TriStar Plastics Corp. Customer Portal
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About Us

TriStar Plastics Corp. provides engineering, custom fabrication and manufacturing of high-performance plastics and self-lubricating bearing materials. 


We're dedicated to building a company where opportunities exist for talented people to achieve their maximum potential.

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Contact Us

Go here to request a quote or for general questions (document requests, billing inquiries, etc.).


Ask the Expert

Have a material or application question for our engineering team? Want to send us a file for review? Go here.


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In an effort to save time, paper and postage please sign up for our paperless invoicing and payments.



Meldin® | A Family of High-Performance Solutions

Meldin® Polyimides

High-Performance Thermoset Materials

Meldin® polyimide materials are engineered for high-demand applications. These materials exhibit high dimensional stability and can be used in specialized applications where high thermal resistance and good mechanical properties at high temperatures are required.

They retain their critical properties at continuous operating temperatures from cryogenic through 600°F and can be used intermittently up to +900°F.

These lightweight materials can withstand harsh chemicals, high pressure, and extreme speeds, friction and wear.

These materials are suitable for metal and ceramic replacement and ideal for applications in many industries including aviation, industrial, semiconductor, space, and life science.  Read our deep dive to learn more about Meldin®.

Solutions include:

  • Bearings
  • Wear components
  • Seals
  • Piston rings
  • Thrust washers

They are also available in custom shapes, rods, sheets, and tubes.

Ask a Question or Request a Quote
Meldin® 7000 Series Comparison

Meldin® Comparison Chart

Meldin® 7001

Meldin® 7001

Unfilled Polyimide
Meldin® 7003

Meldin® 7003

MoS2 Filler
Meldin® 7021

Meldin® 7021

15% Graphite Filler
Meldin® 7022

Meldin® 7022

40% Graphite Filler
Meldin® 7211

Meldin® 7211

10% PTFE, 15% Graphite Filler
Meldin® 6000 Series

Meldin® 6000 Series

Hybrid Aromatic Polyimide
Meldin® 2000 Series

Meldin® 2000 Series

Polyimide Resin Base


Diverse Array of Engineered Meldin® Thermoplastics

Meldin® HT (High Temperature) thermoplastic materials include multiple moldable materials designed for applications where high thermal resistance and good mechanical properties are required. Additional benefits include low weight and corrosion and chemical resistance, making them extremely attractive and versatile when replacing metals.

Meldin® HT Thermoplastic materials are classified as high performance polymers and are ideal for specialized applications in demanding industries such as aviation, space, life sciences, and semi-conductors.

Meldin® 1000 Family

Meldin® 1000 Family

PPS Based
Meldin® 3100

Meldin® 3100 Family

PEI Based
Meldin® 4000 Family

Meldin® 4000 Family

PAI Based
Meldin® 5000 Family

Meldin® 5000 Family