Custom manufacturing example · Custom EPDM/NBR/silicone material rubber flange gasket

CUSTOM RUBBER & SILICONE MANUFACTURING

Custom EPDM/NBR/silicone material rubber flange gasket

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 flange gasket should be developed around the flange faces and the way fastening force reaches them. The gasket outline needs supported contact across the intended sealing region. Local gaps or uneven closing can concentrate compression near fasteners while leaving other areas less engaged.

Silicone rubber gasket material and nitrile rubber, also called NBR, are available alongside EPDM for this custom flange profile. Select the formulation for the medium, temperature and cleaning conditions, then coordinate dimensions and thickness with the joint. The complete assembly determines any pressure or sealing capability.

Inspect flange surfaces for damage and residue before fitting. Position the gasket using the developed references and follow the intended fastening sequence. Check that the part is not trapped outside its seat or pushed into an unsupported opening. During maintenance, compare the contact pattern around the flange rather than inspecting only one easily visible region. Uneven marks can reveal distortion or alignment that needs attention. If the flange hardware or closing arrangement changes, reassess gasket compression before retaining the same component configuration.

Material options: EPDM / NBR / Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection: Rubber: 30–90 Shore A. Silicone: 20–80 Shore A. If the flange hardware or closing arrangement changes, reassess gasket compression before retaining the same component configuration.
Custom dimensions: Check that the part is not trapped outside its seat or pushed into an unsupported opening.
Fit & assembly: Position the gasket using the developed references and follow the intended fastening sequence.
Use & inspection: Inspect flange surfaces for damage and residue before fitting.

Photos illustrate structure or material only. A rubber flange gasket should be developed around the flange faces and the way fastening force reaches them. 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.