Custom manufacturing example · Custom non-standard soft silicone washer/oil-proof thin gasket

CUSTOM RUBBER & SILICONE MANUFACTURING

Custom non-standard soft silicone washer/oil-proof thin 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 soft silicone washer can form a thin custom gasket between mating components. Its outline, opening and thickness should follow the supported contact area in the joint. Thin material needs careful location during assembly because a folded edge can change the local thickness and prevent the faces from meeting as intended.

Set the washer onto a clean mating surface and check the perimeter before closing the joint. If the part has a nonstandard shape, make sure narrow regions are not dragged out of position by a fastener or moving cover. Avoid stacking extra washers to compensate for a gap that belongs in the joint design.

For oil related use, select the finished silicone formulation according to the particular fluid and operating conditions. Softness does not establish fluid compatibility. Inspect the washer when the joint is opened, looking for cuts, wrinkling or a permanently compressed region. Lift it without scraping across the sealing face, and replace a damaged thin section rather than attempting to flatten it back into service.

Material options: Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection: Silicone: 20–80 Shore A. If the part has a nonstandard shape, make sure narrow regions are not dragged out of position by a fastener or moving cover.
Custom dimensions: Thin material needs careful location during assembly because a folded edge can change the local thickness and prevent the faces from meeting as intended.
Fit & assembly: Set the washer onto a clean mating surface and check the perimeter before closing the joint.
Use & inspection: Lift it without scraping across the sealing face, and replace a damaged thin section rather than attempting to flatten it back into service.

Photos illustrate structure or material only. If the part has a nonstandard shape, make sure narrow regions are not dragged out of position by a fastener or moving cover. 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.