O-Ring Cord

KOK O-ring cord provides a flexible sealing solution for applications requiring non-standard diameters or custom ring lengths.

Supplied in continuous lengths, O-ring cord can be cut and joined to form custom-sized O-rings for maintenance, low-volume production, or oversized sealing applications where molded tooling is not practical.

Manufacturing Options

• Supplied as continuous cord
• Cut-to-length per customer specification
• Vulcanized endless rings available upon request

Diameter range: 1 mm – 10 mm
Lengths: Custom

Material Options

KOK manufactures O-ring cord in:

• NBR (Nitrile)
• EPDM
• Silicone
• FKM

Material selection depends on operating temperature, fluid exposure, and environmental conditions.

O-ring cord is commonly used in static sealing applications where dimensional flexibility is required.