EPDM EP90BK41 O-Ring, Size: -008
Material: EPDM EP90BK41 O-Ring
Size: AS568 -008 O-Ring
Part Number: EP90BK41-OR-008
EP90BK41
EPDM (EPR, EPM)
90
Shore A
Steam Resistant
High Temperature Material
L'Garde Cured
AED NACE TM0297
Anti-Explosive Decompression
Color: Black
Detailed Description
EP90BK41-OR-008 is a Black, 90 Shore A, L'Garde Cured EPDM (EPR, EPM) O-Ring. EP90BK41 is manufactured with the following features & specifications: Steam Resistant, High Temperature Material, AED NACE TM0297, Anti-Explosive Decompression. EP90BK41-OR-008 is AS568 size -008 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 4.47mm (Inside Diameter (ID)).
Material: EPDM EP90BK41 O-Ring
Size: AS568 -008, 1.78mm CS X 4.47mm ID (0.070" CS X 0.176" ID)

| Technical Specification | Value |
|---|---|
| Compound Number | EP90BK41 |
| Material | EPDM (EPR, EPM) |
| Cure | L'Garde Cured |
| Color | Black |
| Durometer | 90 Shore A |
| High Temperature | 290 °C / 554 °F |
| Low Temperature | -50 °C / -58 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -008 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 4.47 mm / 0.176 in |
| Other Specifications | |
AED NACE TM0297 | |
Anti-Explosive Decompression | |
Canyon’s EP90BK41 is a 90 Shore A black EPDM compound engineered for extreme high-temperature steam service and anti-explosive decompression (AED) performance. Formulated with L’Garde Y267 technology, it delivers reliable sealing in water and steam applications up to 290°C (554°F), with short steam excursions reaching 315°C (600°F). The compound provides strong resistance to polar fluids, weathering, and abrasion, along with proven AED capability tested to NACE TM0297 for pressure-cycling environments. EP90BK41 is not recommended for hydrocarbon fuels or oils, where EPDM chemistry is unsuitable.
EP90BK41 is commonly used in geothermal, energy, and industrial systems exposed to extreme steam and pressure conditions, including valves, pumps, and high-temperature process equipment. Its high durometer supports extrusion resistance and dimensional stability under load while maintaining elasticity through severe thermal cycling. This material is frequently cross-referenced as an alternative to Parker E0962-90 for comparable extreme steam and AED EPDM sealing applications.
Common relevant keywords:
extreme steam EPDM seals, high temperature EPDM rubber, AED resistant EPDM, anti explosive decompression EPDM, geothermal EPDM O-rings, steam service EPDM gaskets, 90 Shore A EPDM material, NACE TM0297 elastomers, high pressure steam seals, polar fluid resistant rubber, Parker E0962-90 equivalent, energy industry EPDM sealing solutions, Datasheet, TDS, Test Report, MTR, MSDS, SDS


