Custom manufacturing example · Food grade silicone o rings/silicone rubber gasket/rubber washer

CUSTOM RUBBER & SILICONE MANUFACTURING

Food grade silicone o rings/silicone rubber gasket/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

Silicone o rings for food contact equipment should be selected around the specific contact conditions, including the substance, temperature, and cleaning cycle. The chosen formulation and finished ring need assessment for that use. Gasket and washer formats provide different contact sections, so each version should be matched to its own retaining geometry rather than substituted by overall diameter.

Plan how the seal is accessed during cleaning or maintenance. The groove should allow the ring to be removed without a sharp tool damaging its surface, and the fitting route should not require excessive stretch over unrelated hardware. Keep the contact path supported when the joint closes.

Install on clean mating surfaces and check the section remains untwisted before closure. After cleaning, inspect the ring for residue, cuts, and changes in recovered shape. Follow the equipment's intended replacement process if the seal no longer fits correctly. Maintain the selected material and dimensions through service so a visually similar replacement does not introduce a different contact or cleaning response into the assembly.

Material options: Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection: Silicone: 20–80 Shore A. The groove should allow the ring to be removed without a sharp tool damaging its surface, and the fitting route should not require excessive stretch over unrelated hardware.
Custom dimensions: Gasket and washer formats provide different contact sections, so each version should be matched to its own retaining geometry rather than substituted by overall diameter.
Fit & assembly: Install on clean mating surfaces and check the section remains untwisted before closure.
Use & inspection: Maintain the selected material and dimensions through service so a visually similar replacement does not introduce a different contact or cleaning response into the assembly.

Photos illustrate structure or material only. Seal access and operating fit both belong in the groove design for food equipment. 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

Define the part

Identify key dimensions, mating surfaces and quantity

Review material & tooling

Agree the compound and manufacturing approach

Evaluate the sample

Review the fit and agreed requirements in the assembly

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.