Custom manufacturing example · Colorful rubber thick washer/round sealing rubber O-rings

CUSTOM RUBBER & SILICONE MANUFACTURING

Colorful rubber thick washer/round sealing rubber O-rings

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 colorful rubber thick washer can help distinguish variants within a product assembly. The color should correspond to a defined size and compound, while the section remains selected for the joint's actual closing space. The visible appearance does not establish the material or installed behavior by itself.

Measure the supported width and available compression before choosing thickness. A larger section may prevent the mating parts from reaching their intended position or interfere with fastener engagement. The center opening should also fit without being stretched over an oversized feature.

Install the washer on clean surfaces and check alignment before closure. Use the specified fastening or closing method rather than compressing the rubber until its visible edge looks flat. During servicing, keep color variants separated if their dimensions differ. Inspect for cuts or extrusion into unsupported gaps. Replace with the matching specification so that the identification scheme continues to represent the correct ring at each position in the assembly.

Material options: Rubber. Custom formulation and color for the intended contact conditions.
Hardness selection: Rubber: 30–90 Shore A. Use the specified fastening or closing method rather than compressing the rubber until its visible edge looks flat.
Custom dimensions: The color should correspond to a defined size and compound, while the section remains selected for the joint's actual closing space.
Fit & assembly: Install the washer on clean surfaces and check alignment before closure.
Use & inspection: Replace with the matching specification so that the identification scheme continues to represent the correct ring at each position in the assembly.

Photos illustrate structure or material only. A larger section may prevent the mating parts from reaching their intended position or interfere with fastener engagement. 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.