Rulon® Plastics Machining

Rulon® plastics are a family of reinforced PTFE resins manufactured by Saint-Gobain Performance Plastics. Rulon® offers high compressive strength, a low coefficient of friction, and high abrasion and corrosion resistance. Upland Fab are experts in Rulon® machining, and can produce high precision parts and components that match your unique specifications.

Benefits of Using Rulon PTFE Resin 

In addition to the characteristics listed above, Rulon® plastics offer an extremely broad operating temperature range (-400° to 500°F/-240° to 260°C) and a unique no slip-stick property that prevents erratic motion in low speed applications. With its low coefficient of friction, Rulon® provides outstanding performance without lubrication.

The most common uses for Rulon® include extremely high temperature seals, piston rings, and bearings, as well as plastic electrical insulation applications. 

There are many grades of Rulon® plastics available, including Rulon® LR, Rulon® J, Rulon® 641, Rulon® AR, Rulon® 142, Rulon® 123, and others. Each Rulon® grade offers distinct performance characteristics that may make it better suited to your application than other grades. Contact Upland Fab to discuss your material requirements.

Properties of Rulon® PTFE Resin

ASTM or UL test PROPERTY Rulon® LR
Rulon® J
Rulon® 641
Rulon® AR
D792 Density (lb/in³)
D2240 Hardness, Shore D 60-75 60 60 60-75
D570 Water Absorption, 24 hrs (%) 0 0 0 0
D1457 Tensile Strength (psi) 1,5000 2,000 2,000 2,000
D1457 Tensile Elongation at Yield (%) 150 180 175 175
D256 IZOD Notched Impact (ft-lb/in) 6.0 - - 6.0
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
varies widely
with temperature
Cenco-Fitch Thermal Conductivity
(x 10-4 cal/cm-sec-°C)
D635 Flammability (in/min) None None None None
D149 Dielectric Strength (V/mil) short time, .08" thick 400-500 200 - 400-500
D150 Dielectric Constant at 1 MHz 2.5 2.4 - 2.5
D150 Dissipation Factor at 1 MHz 0.003 0.001 - 0.003
D257 Surface Resistivity (ohm-cm) at 50% RH 2 x 1013 6 x 1018 - 2 x 1013
D257 Volume Resistivity (ohm-cm) at 50% RH 1 x 1015 8 x 1018 - 1 x 1015
                                                RECOMMENDED OPERATING LIMITS    
                      Maximum Load (psi) 1,000 1,000 1,000 1,000
                         Maximum Velocity with No Pressure (ft/min) 400 400 400 400
             Maximum PV Rating (psi x ft/min) 10,000 10,000 10,000 10,000
               Maximum Operating Temp (°F / °C) 500/260 500/260 500/260 500/260
                                 Minimum Operating Temp (°F / °C) -450/-240 -450/-240 -450/-240 -450/-240
                            Minimum Mating Surface Hardness (Rockwell)  C35 B25 B25 C35

High Precision Rulon® Machining

Upland Fab utilizes advanced multi-axis machining capabilities to produce high precision Rulon® parts, with tight tolerances and perfect repeatability from one piece to the next, no matter how high the quantity. Our CNC machining technology minimizes the time required for handling and fixturing; in many cases, even extremely complex parts can be completed in a single operation, for faster and more efficient production.

We use DPD/MBD processes (Digital Product Definition/Model-Based Definition) that allow us to work directly from your CAD models or digital design files. Working straight from your designs helps us eliminate manufacturing errors and enhances precision. This results in better quality parts at lower cost.

Upland Fab’s Top-Flight Communication

Because we know the importance of good communication, when you work with Upland Fab, you’ll have a single point of contact throughout your entire project. We’ll provide reliable, timely updates to keep you informed every step of the way.


Other Materials We Work With

Are you looking for another material? We have the ability to machine many different materials take a look below at some of the other plastics we work with. 


  • Fluorosint®
  • Kel-F®
  • Kynar®
  • Tefzel®


Contact Upland Fab to Learn More About Rulon® Machining

We have been providing top-flight plastic and composite machining in Southern California since 1970. Contact us for more information or request a quote on Rulon® machining for your next project.

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Precision Plastic and Composite CNC Machining

Precision Plastic and Composite
CNC Machining since 1970.

Precision Plastic and Composite CNC Machining
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