Specialty Polymer Seal Materials

This selection of high-performance sealing materials consists of fluoropolymers (FP), fluorinated ethylene propylene (FEP), polyimide (PI), and polychlorotrifluoroethylene (PCTFE). Each material has unique properties that can be applied to address friction, temperature, pressure, and media challenges in sealing applications. PCTFE, for example, has excellent resistance to shrinkage and deformation at very low temperatures, making it extremely effective in cryogenic environments.

Key Properties of Specialty Polymers

temperature symbol
Broad
Temperature
Range
media symbol
Excellent
Media
Compatibility
friction symbol
Moderate
Coefficient
of Friction
tensile strength symbol
Moderate
Tensile
Strength

Bal Seal® Specialty Polymers Performance

Our specialty polymers for rotary, reciprocating, and static sealing applications are formulated to provide optimal performance and service life in your designs. Our offering ranges from virgin materials to precision blends that leverage the additive properties of fillers to meet specific temperature, pressure, speed, and wear requirements. Materials are available to address sealing needs in radiation, harsh media, and other demanding conditions.

Temperature Resistance
(° fahrenheit)

temperature graph

Media Compatibility
(rating)

media graph

Friction
(µ at ambient temperature)

friction graph

Tensile Strength
(psi at break)

tensile strength graph

Specialty Polymers Applications

Specialty Polymers Technical Resources

Properties of Bal Seal®
Polymer Materials

(TR-8A)

TR-8A Polymer Materials Data Sheet

Chemical Compatibility Guide
(TR-60A)

Specialty Polymer FAQs

This material is used where its balance of friction, wear, temperature capability, and chemical compatibility aligns with the sealing requirements of the application.

Each Bal Seal material family offers different performance strengths. Selection depends on whether your priority is low friction, high strength, abrasion resistance, cryogenic performance, or chemical compatibility.

Yes. Bal Seal Engineering can recommend the right formulation based on your operating conditions, wear concerns, and performance targets.

Bal Seal material options are used across demanding applications including aerospace, medical, analytical, industrial, cryogenic, and clean environments depending on the specific formulation.

Yes. Bal Seal materials are used in custom spring-energized seals and related sealing components tailored to the geometry and operating conditions of the application.

Yes. Bal Seal Engineering works with OEM teams to evaluate performance requirements and recommend materials and designs for custom sealing challenges.

Need Help Selecting a Material?

Our engineering team can help evaluate material fit, performance tradeoffs, and application requirements to identify the right sealing solution.

Contact Engineering

Custom components that drive tomorrow’s technologies.®

© 2026 Bal Seal Engineering. All Rights Reserved.

Custom components that drive tomorrow’s technologies.®

Log in with your credentials

Forgot your details?