CUSTOM RUBBER & SILICONE MANUFACTURING

Factory customized rubber o-rings gasket seal ring

A custom component for your assembly.

Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.

  • Factory direct
  • Made to order
  • Drawing & sample support

Share the part, its application and your estimated quantity.

Customize the fit, material and finish

Vulcanization workshop illustration with green molding presses and blue collection bins

Material & hardness

Selected for the contact, temperature and movement

Color & finish

Define the visible surfaces and intended color

Shape & dimensions

Develop holes, lips and walls around the mating parts

Mounting & fit

Match the attachment and installation method

Product Overview

A gasket seal ring needs a cross-section matched to the space provided by its mating components. An O-ring-style section works through a particular groove and compression arrangement, so the ring should not be selected only because its overall diameter resembles the joint opening.

Check the groove dimensions, entry path, and whether the seal remains stationary or experiences movement. The selected formulation must suit the actual medium and environment. During assembly, the ring should reach its working position without twisting, excessive stretching, or damage from a sharp edge.

Evaluate the complete connection for its required sealing behavior. The custom designation permits a defined configuration but does not establish a universal pressure rating. After opening the joint, inspect the ring around its full circumference for local cuts, flattening, or extrusion. A defect that recurs at the same point may indicate a mating feature or installation step that needs attention, while a broader change in condition can call for review of material exposure as well as mechanical fit.

Material options
Rubber. Custom formulation and color for the intended contact conditions.
Hardness selection
Rubber: 30–90 Shore A. During assembly, the ring should reach its working position without twisting, excessive stretching, or damage from a sharp edge.
Custom dimensions
An O-ring-style section works through a particular groove and compression arrangement, so the ring should not be selected only because its overall diameter resembles the joint opening.
Fit & assembly
A defect that recurs at the same point may indicate a mating feature or installation step that needs attention, while a broader change in condition can call for review of material exposure as well as mechanical fit.
Use & inspection
After opening the joint, inspect the ring around its full circumference for local cuts, flattening, or extrusion.

Photos illustrate structure or material only. An O-ring-style section works through a particular groove and compression arrangement, so the ring should not be selected only because its overall diameter resembles the joint opening. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

From part requirements to production

01

Define the part

Identify key dimensions, mating surfaces and quantity

02

Review material & tooling

Agree the compound and manufacturing approach

03

Evaluate the sample

Review the fit and agreed requirements in the assembly

04

Produce & inspect

Manufacture and check against the approved requirements

Review the intended assembly

Working conditions

Identify temperature, contact fluids and repeated movement.

Material and structure

Consider hardness together with wall thickness and support.

Installation

Check access, mating dimensions and the fitting sequence.

Ordering this custom component

Can the shape be adjusted to my mating parts?

Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.

Which details should be agreed before tooling?

Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.

Can a sample help define the replacement?

A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.

How is the quotation for this part determined?

The material, part geometry, tooling, quantity and finishing affect the quotation. Include the intended batch size and delivery destination when describing your requirements.

DISCUSS THIS COMPONENT

Describe the part you need.

Share the fit, operating conditions and quantity with our manufacturing team.

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Send your requirements
and selected drawings

All files and photos you share with us are handled under strict confidentiality procedures and will not be disclosed to any third party.

DISCUSS THIS COMPONENT

Request a Custom Quote

You can also email us directly at [email protected].