Custom manufacturing example · Custom waterproof rubber gasket/heat-resistant rubber seal

CUSTOM RUBBER & SILICONE MANUFACTURING

Custom waterproof rubber gasket/heat-resistant 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 rubber seal used around a warm assembly must remain compatible with the entire joint environment. This custom component can be shaped for a pipeline connection, closure, or equipment interface, with material selection tied to the actual application. Temperature, the contacting medium, and the way the joint compresses the seal all influence that choice.

Consider the temperature at the sealing surface during normal operation and during cleaning or shutdown. A nearby heat source can create a different condition from the surrounding air. The mating components may also change dimension as they warm, altering the available compression space. The profile should accommodate the intended assembly conditions without being forced into a gap that is too small.

Keep the sealing faces clean during installation and bring the joint together evenly. Avoid using additional tightening to compensate for an incorrect profile. After service, inspect for local flattening, cracking, or material changes around the hottest contact region. Water sealing and heat suitability should be established for the selected compound in the completed connection.

Material options: Rubber. Custom formulation and color for the intended contact conditions.
Hardness selection: Rubber: 30–90 Shore A. Temperature, the contacting medium, and the way the joint compresses the seal all influence that choice.
Custom dimensions: The profile should accommodate the intended assembly conditions without being forced into a gap that is too small.
Fit & assembly: A rubber seal used around a warm assembly must remain compatible with the entire joint environment.
Use & inspection: After service, inspect for local flattening, cracking, or material changes around the hottest contact region.

Photos illustrate structure or material only. The mating components may also change dimension as they warm, altering the available compression space. 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.