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
Portal Features
Request Portal Authorization Code

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.

Let's Go Paperless...

To save time, paper & postage please sign up for paperless invoicing and payments.

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.


Let's Go Paperless

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


2 min read

How can specialized polymer membranes be used for filtration?

January 6, 2022

How can specialized polymer membranes be used for filtration?

A membrane is a thin material that allows some substances through while keeping others out. But with precision engineering, membranes can be configured to achieve precise filtration outcomes which are essential in industries ranging from food & beverage to in vitro diagnostics.

This blog post provides an introduction to filtration membranes and how they work. Advanced polymer membranes are just one offering from TriStar’s Enhanced Materials Division (EMD) — you can learn more about EMD and how it works here.

What are polymer filtration membranes?

A polymer filtration membrane is a thin sheet of polymer material whose microporous structure has been engineered to achieve a precise filtration outcome. Different materials and microporous properties (like pore size) can be used for different filtration applications.

The pores in specialized membranes are often measured in the tens of nanometers! This means that they can be used to filter incredibly small contaminants, like microorganisms, tiny particulate, or natural organic material. By combining different pore sizes in different membrane layers, filtration can be specified even more precisely.

The ability to flexibly configure polymer membranes is the main reason why you will find them in so many different industries. They are used in water purification, inside fuel cells and batteries, and in advanced medical diagnostic equipment, just to name a few examples.

Common Polymers for Filtration Applications

  • PTFE
  • PES
  • PVDF
  • Nylon
  • Polypropylene

How TriStar Helps Clients Implement the Right Filtration Membrane for the Job

Filtration membranes represent a substantial engineering challenge for many product development teams. They require specialized knowledge, precision fabrication capabilities, and careful alignment to each unique application. In our experience, advanced filtration challenges require more than an “off the shelf” membrane material. Success requires an in-depth, consultative engineering approach.

For example, TriStar EMD worked with client engineers to perfect a High-Performance Liquid Chromatography (HPLC) system. In this case, analysis of the application determined that a novel material was required, and TriStar created one for the job: Ultraflon M18+. This hyper-hydrophilic material allowed for more precise control over liquid and gas flow within the HPLC system. You can learn more about this application in our case study here.

Our guide here provides a deeper look at how TriStar EMD provides value-added engineering to help clients get the most out of advanced materials like filtration membranes.

Using Enhanced Materials to Solve Tough Engineering Problems

Or, if you’re interested in discussing how we can help develop the right membrane for your filtration challenge, we encourage you to reach out using the button below.


Frank Hild

Written by Frank Hild