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EP50BK00-OR-1X21
CS

0.039 in

(1.00 mm)

ID

0.827 in

(21.00 mm)

ORing cut reference

EPDM EP50BK00 O-Ring, Size: 1X21

Material: EPDM EP50BK00 O-Ring

Size: Metric 1X21 O-Ring

Part Number: EP50BK00-OR-1X21

EP50BK00

EPDM (EPR, EPM)

50

Shore A

Peroxide Cured

General Purpose Material

Color: Black

Detailed Description

EP50BK00-OR-1X21 is a Black, 50 Shore A, Peroxide Cured EPDM (EPR, EPM) O-Ring. It is a 50 durometer EPDM (EPR, EPM). EP50BK00 is manufactured with the following features & specifications: General Purpose Material. EP50BK00-OR-1X21 is Metric size 1X21 O-Ring also referred to as 1mm (Cross Sectional Diameter (CS)) x 21mm (Inside Diameter (ID)).


Material: 50 Durometer EPDM EP50BK00 O-Ring


Size: Metric 1X21, 1.00mm CS X 21.00mm ID (0.039" CS X 0.827" ID)

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Technical SpecificationValue
Compound NumberEP50BK00
MaterialEPDM (EPR, EPM)
CurePeroxide Cured
ColorBlack
Durometer50 Shore A Hardness
High Temperature150 °C / 302 °F
Low Temperature-55 °C / -67 °F
Geometry Specifications
Cross Sectional GeometryO-Ring
Size StandardMetric
Size1X21
Cross Section (CS)1.00 mm / 0.039 in
Inside Diameter (ID)21.00 mm / 0.827 in
ORing cut reference

Canyon’s EP50BK00 is a 50 Shore A black EPDM compound that is peroxide cured for improved thermal stability, aging resistance, and long-term sealing performance. Designed as a cost-effective, general-purpose material, it offers excellent resistance to weathering, ozone, and environmental exposure while maintaining good heat and abrasion resistance. With a service temperature range of -57°C to 150°C (-70°F to 300°F), EP50BK00 remains flexible at low temperatures and stable under moderate heat. Its low compression set and high elongation make it well suited for static and light dynamic sealing applications where softness and conformability are important.

EP50BK00 meets ASTM D2000 2DA510 requirements and provides consistent mechanical performance for industrial, HVAC, water handling, and general equipment sealing applications. This EPDM formulation is commonly selected where durability, affordability, and environmental resistance are required without exposure to petroleum-based oils or fuels. Canyon Components offers equivalent EPDM materials tailored for specific temperature, chemical, and compliance needs. Compare to common Parker EPDM compounds used in similar applications.

Common relevant keywords:
EPDM, Ethylene Propylene Rubber, Peroxide Cured EPDM, 50 Shore A EPDM, Black EPDM, EPDM O-rings, EPDM Gaskets, Weather Resistant Rubber, Ozone Resistant Elastomers, Heat Resistant EPDM, Low Compression Set EPDM, Industrial EPDM Seals, Parker EPDM Equivalent, Datasheet, TDS, Test Report, MTR, MSDS, SDS 

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* Disclaimer: Kalrez® is a registered trademark of DuPont™. It represents a high-performance perfluoroelastomer used in demanding sealing applications. Please note that the Kalrez® brand is not owned by Canyon Components. All rights and ownership of the Kalrez® trademark are held by DuPont™, ensuring the quality and reliability associated with this renowned brand.