Custom manufacturing example · Molded compressing silicone gasket/rubber washer/rubber seal

CUSTOM RUBBER & SILICONE MANUFACTURING

Molded compressing silicone gasket/rubber washer/rubber seal

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 silicone gasket may be supplied for a connection that is opened repeatedly rather than left assembled throughout its life. In that case, its seating behavior during each closure becomes part of the product's everyday use. The custom profile should work with the way the user approaches and closes the mating parts.

Observe whether the lid or cover moves straight toward the gasket or sweeps across part of it. A sideways approach can catch an exposed section and carry it out of position. Locating features should keep the rubber where the design intends without creating a lip that is repeatedly snagged by the closing movement.

Assess the complete opening and closing action with the selected material. Check not only whether the joint seals, but whether the gasket remains ready for the next closure after the cover is removed. Keep residue from accumulating at the locations that guide it into place. If the seal repeatedly lifts at one section, examine the approach path and retention there before changing the whole gasket thickness or applying greater closing force.

Material options: Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection: Silicone: 20–80 Shore A. If the seal repeatedly lifts at one section, examine the approach path and retention there before changing the whole gasket thickness or applying greater closing force.
Custom dimensions: A sideways approach can catch an exposed section and carry it out of position.
Fit & assembly: Check not only whether the joint seals, but whether the gasket remains ready for the next closure after the cover is removed.
Use & inspection: Keep residue from accumulating at the locations that guide it into place.

Photos illustrate structure or material only. Locating features should keep the rubber where the design intends without creating a lip that is repeatedly snagged by the closing movement. 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.