Solid EPDM Rubber Cord for Custom O-Ring Making |SEASHORE

O-ring EPDM Rubber Cord China Manufacturer

EPDM round cord can be produced in different size, from 3mm to 35mm diameter, in circle or not circle,also can be in various colors accordingly requirements, the material in sponge and solide,it can be widely used for windows, doors, automotive.

Product Specification:

Shape:As customers’ drawing,sample or design.

Size available:From 1mm to 50mm high and width.

Length:Continuous

Hardness:From 40 to 75 Shore

Color:Any color,like Black,White,Brown,Yellow,red.etc

Temperature resistant:From -40 to 120 degree.

Grade :Industrial Grade;Food Grade;Medical Grade.

O-Ring Cord Product Overview

O-ring cord is a solid round rubber profile used to create custom sealing rings when standard molded sizes are unavailable. It can be cut to the required length and joined into large-diameter, non-standard, replacement, or low-volume O-rings without opening a dedicated mold.

This EPDM O-ring cord is manufactured with a consistent cross-section to support accurate sizing and even groove compression. It is mainly used for static sealing in tanks, flanges, filter housings, equipment covers, pipelines, and industrial enclosures. Buyers can order continuous cord for in-house fabrication or request finished bonded or vulcanized O-rings according to the required inner diameter and cross-sectional size.

FAQ About O-ring Cords

Can rubber cord be used to make O-rings?

Yes. Solid round rubber cord can be cut and joined to produce custom O-rings, particularly non-standard, large-diameter, replacement, and low-volume O-rings.

Can one cord diameter make different O-ring sizes?

Yes. One cord cross-section can be cut into different lengths to produce O-rings with different internal diameters.

What is the difference between bonded and vulcanized O-rings?

Bonded O-rings use adhesive to connect the two cord ends. Vulcanized O-rings use heat, pressure, and compatible rubber material, generally producing a stronger and more flexible joint.

Are glued O-rings as strong as molded O-rings?

Not usually. A glued O-ring contains a bonded joint and generally does not provide the same uniform strength as a seamless molded O-ring. It is mainly suitable for general static sealing.

How do I choose the correct O-ring cord diameter?

The cord diameter should match the required O-ring cross-section and groove dimensions. Groove width, groove depth, compression, pressure, and application conditions should all be considered.