CUSTOM RUBBER & SILICONE MANUFACTURING

Flexible silicone o-ring flat rubber gaskets and seals

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

Flexible flat rubber gaskets and seals should be replaced with the section required by the joint, not merely with a ring of similar outside size. This custom silicone option can follow the mating outline and closing space. The seat determines whether the interface needs a flat washer-like section or another ring profile.

Inspect the assembly before removing the old component when practical, noting its orientation and locating features. A used seal may have changed shape under compression, so its current thickness is not necessarily the original specification. Match the required dimensions of the joint instead of copying distortion.

Select the compound for the medium and temperature at the contact surfaces. Install the replacement cleanly without pulling it across locating points. Close the mating parts in alignment so that the rubber remains flat and supported. During subsequent care, inspect for cuts or repeated uneven deformation that may indicate a seating issue. Keep spare seals identified by their full profile and material to prevent similar-looking variants from being mixed during maintenance.

Material options
Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection
Silicone: 20–80 Shore A. A used seal may have changed shape under compression, so its current thickness is not necessarily the original specification.
Custom dimensions
The seat determines whether the interface needs a flat washer-like section or another ring profile.
Fit & assembly
Close the mating parts in alignment so that the rubber remains flat and supported.
Use & inspection
Inspect the assembly before removing the old component when practical, noting its orientation and locating features.

Photos illustrate structure or material only. A used seal may have changed shape under compression, so its current thickness is not necessarily the original specification. 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].