CUSTOM RUBBER & SILICONE MANUFACTURING

Molded compressing durable rubber seal ring/rubber washer

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 rubber seal ring should remain identifiable when a product family uses several similar connection sizes. Small differences in the bore, section, or outer profile can be difficult to spot once loose rings are mixed together. Custom versions need to stay associated with their intended joints throughout assembly and maintenance.

Compare the complete profile when selecting a part from a set. Two rings may share an outside diameter yet leave a different central opening or occupy a different closed gap. Keep the chosen compound identified as well, because visual matching does not distinguish every rubber formulation.

Check the receiving joint before fitting, using its original configuration rather than an approximate neighboring size. A ring that can be pressed into the opening is not necessarily the corresponding seal. During service, separate removed parts from unused replacements so permanent deformation in an old ring does not cause confusion. Restore the developed version for the specific connection and evaluate that assembly's service requirements. This avoids using flexibility to make one nominal ring serve several unrelated seats.

Material options
Rubber. Custom formulation and color for the intended contact conditions.
Hardness selection
Rubber: 30–90 Shore A. A ring that can be pressed into the opening is not necessarily the corresponding seal.
Custom dimensions
Small differences in the bore, section, or outer profile can be difficult to spot once loose rings are mixed together.
Fit & assembly
Check the receiving joint before fitting, using its original configuration rather than an approximate neighboring size.
Use & inspection
During service, separate removed parts from unused replacements so permanent deformation in an old ring does not cause confusion.

Photos illustrate structure or material only. Two rings may share an outside diameter yet leave a different central opening or occupy a different closed gap. 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].