O-Ring Cords

O-ring cords are continuous extruded elastomer profiles with round or shaped cross-sections, supplied in coils for cutting and joining to a required circumference. They provide practical static seals for large or uncommon grooves where moulded endless rings are unavailable, especially during plant maintenance.

Key facts

Family: O-Rings & Static Seals
Common types: Solid round cord, Square cord, Hollow cord, Sponge cord, Splicing kit cord
Materials: NBR, FKM (fluoroelastomer), EPDM, Silicone, Neoprene
Used in: Tank covers, Large housings, Inspection doors, Machine enclosures, Emergency repairs

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Types

Solid round cord
Square cord
Hollow cord
Sponge cord
Splicing kit cord

Materials

Applications

Tank covers
Large housings
Inspection doors
Machine enclosures
Emergency repairs

What to send for a quote

cord cross-section
material
hardness
required length
joint method

Questions about o-ring cords

What should I send to identify o-ring cords?

Send cord cross-section, material, hardness, required length, joint method. Measure the groove rather than only the stretched old cord and state whether the joint will be bonded or vulcanised. A clear photograph, drawing or readable reference can resolve details that dimensions alone do not show.

How should I select o-ring cords?

Choose cord compound and section from groove fill, compression, fluid and joint movement, then use a controlled square splice. Confirm the mating parts and operating environment before ordering, since an apparently similar size can use a different profile, material or internal arrangement.

Last updated: 2026-10-08