EPM 893 PFAS-Free Sealing Compound for Hydrogen and CCUS Service
Related To:
Nov. 12, 2026
2 min read
Hydrogen and carbon capture systems expose seals to high-pressure gas, rapid pressure cycling, aggressive process media, and low temperatures that can crack, blister, or degrade conventional elastomers. Greene Tweed's EPM 893 is a PFAS-free ethylene propylene compound for seals in hydrogen and carbon capture, utilization, and storage (CCUS) equipment. It combines low-temperature sealing, decompression resistance, and chemical compatibility in one material. That means fewer trade-offs for teams rethinking seal materials because of PFAS regulations.
Applications
- Hydrogen refueling system sealing
- Valve, instrumentation, and mechanical seals
- CO2 compressor and pump seals
- Underground storage and pipeline seals
Industries
- Hydrogen fueling and storage
- Carbon capture and storage
- Gas pipeline transport
Who It's For
- Operations phasing out PFAS-containing seal materials
- Seals blistering or cracking under pressure cycling
- Sub-zero gas service where elastomers lose elasticity
Features:
- Continuous operating temperature: Down to -76°F (-60°C)
- Typical service temperature range: -89° to 302°F (-67° to 150°C)
- Rapid gas decompression (RGD) resistance: Up to 2,900 psi (200 bar) in hydrogen and supercritical CO2
- Chemical compatibility: Tested in 100% hydrogen, supercritical CO₂, oxygen service, and amine-based carbon capture environments
- Test standards: ISO 23936-2, ISO 17268/SAE J2600, and NACE TM0192
- Forms: O-rings, GT Rings, and custom-molded shapes
- Lowers the risk of blistering and cracking during pressure cycling
- Fully PFAS-free formulation
Greene Tweed
Lansdale, PA
(800) 220-4733
gtweed.com
Contributors:
This piece was created with the help of generative AI tools and edited by our content team for clarity and accuracy.