CUSTOM RUBBER & SILICONE MANUFACTURING

Silicone Rubber O Ring EPDM Rubber Oil 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 Silicone Rubber O Ring forms an annular seal when it is matched to the appropriate groove and mating component. The internal diameter and cross section should be selected together, since stretching the ring to reach a groove changes the section presented to the joint.

Silicone, EPDM and other compounds are separate material choices. For oil contact, select the specific formulation around the actual fluid and service conditions rather than assuming all listed rubber families share the same resistance. ETOL can customize dimensions, hardness and color for the required version.

Check the groove for damage and residue before placing the ring. Fit it evenly without leaving a twisted section, and use the assembly method specified for the equipment. After the mating part is installed, evaluate sealing through the required operating checks. Keep replacement rings identified by compound and dimensions so a visually similar ring from another configuration is not substituted during maintenance. Inspect removed rings for changes in section before using them as a measurement reference.

Material options
EPDM / Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection
Rubber: 30–90 Shore A. Silicone: 20–80 Shore A. The internal diameter and cross section should be selected together, since stretching the ring to reach a groove changes the section presented to the joint.
Custom dimensions
A Silicone Rubber O Ring forms an annular seal when it is matched to the appropriate groove and mating component.
Fit & assembly
Fit it evenly without leaving a twisted section, and use the assembly method specified for the equipment.
Use & inspection
Keep replacement rings identified by compound and dimensions so a visually similar ring from another configuration is not substituted during maintenance.

Photos illustrate structure or material only. The internal diameter and cross section should be selected together, since stretching the ring to reach a groove changes the section presented to the joint. 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].