Custom manufacturing example · FKM rubber rings Custom made FKM NBR EPDM non-standard seals

CUSTOM RUBBER & SILICONE MANUFACTURING

FKM rubber rings Custom made FKM NBR EPDM non-standard 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

FKM rubber rings can be configured for nonstandard sealing positions where the section and outline need to follow a particular joint. Viton, NBR, and EPDM options should each be selected for the actual medium and temperature. A custom outline that fits the hardware does not make all of those compounds interchangeable in service.

Define the supported contact region and the available gap after closure. Include corners or changes in section that may deform differently from a uniform round ring. The chosen geometry should remain located without stretching an undersized part to reach a distant seat.

Fit on clean mating surfaces and protect the rubber from sharp assembly features. Check that the ring remains in its intended profile as the joint closes. During maintenance, inspect the full custom outline for localized damage instead of checking only its largest dimension. If the service conditions change, revisit material choice while preserving the geometry that controls fit, and assess the complete revised sealing arrangement before relying on the replacement.

Material options: EPDM / NBR / FKM. Custom formulation and color for the intended contact conditions.
Hardness selection: Rubber: 30–90 Shore A. The chosen geometry should remain located without stretching an undersized part to reach a distant seat.
Custom dimensions: FKM rubber rings can be configured for nonstandard sealing positions where the section and outline need to follow a particular joint.
Fit & assembly: Fit on clean mating surfaces and protect the rubber from sharp assembly features.
Use & inspection: During maintenance, inspect the full custom outline for localized damage instead of checking only its largest dimension.

Photos illustrate structure or material only. FKM rubber rings can be configured for nonstandard sealing positions where the section and outline need to follow a particular 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

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.