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Hollow Spliced O-Ring


D&A Rubber is a manufacturer of high quality, durable hollow O rings. Our spliced and vulcanized O ring products are made of high quality rubber materials typically EPDM, silicone, FKM/viton, neoprene.

When requirements call for an inside diameter larger than 100mm, a spliced extruded cord is an ideal cost effective sealing solution.

We are Manufacturing Wide variety of Silicone O-Rings, from silicone cords, silicone tubing, silicone square/rectangular, and from custom extruded gaskets.

Injection jointed, hot vulcanize jointed, compress molded, injection molded.

At D&A RUBBER we have developed our own unique vulcanize joining system, which enables us to join complex as well as simple extrusions into rings and mitered corners using the same material for the joint as the extrusion. This gives a uniform component and an almost invisible join.


Gaskets, O-rings, Seals can be made from Solid or Hollow rubber extrusion profiles.

No tooling required for standard Cords and profiles.

Low cost tooling for no standard cords and profiles (if needed)

O-rings can be made in virtually any diameter.

Hollow cross section O-rings requires less closure force.

Hollow O-rings, gaskets, seals can be used in non standard groove or grooves with irregularity.

D&A RUBBER also has the following capabilities with extruded rubber:

• Co-extrusion & Sponge materials

• Custom Compounding (durometer, colors, chemical resistant)

• Dual Durometer

• Splicing, Vulcanizing, Corner Molding

• Cutting of rubber products to specified lengths.

• Cut out of various shapes from rubber pieces according to the drawing.

• Punching of various shapes.

Seals for pipes and fittings application


D&A Rubber Industries is a up-rising company, starting its mission of manufacturing quality FKM/viton and rubber products since more than a decade. From this beginning, D&A rubber expanded into the producer of a variety of rubber profiles, ventilation duct gasket, chimney flue pipe gasket, seals for pipes and fittings, gaskets...Read More

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Add:Shangshao Industrial  Zone, Jiangbei, Ningbo, China 315000
Tel:  +86-574-27858278
Fax: +86-574-27858279
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