Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Silicone rubber EPDM gasket o rings with high strength
CUSTOM RUBBER & SILICONE MANUFACTURING
Silicone rubber EPDM gasket o rings with high strength
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
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
EPDM gasket O rings provide a custom rubber sealing interface within a receiving joint. The ring diameter and section must match the groove or mating faces, while the compound is selected for the actual operating conditions. Silicone and EPDM are distinct choices rather than a single interchangeable specification.
Consider the support provided by the surrounding parts. The rubber needs room to deform under the intended compression without being squeezed into an unsuitable gap. A description of strength does not replace the need to establish the ring's geometry and service conditions within the complete assembly.
Check the groove for damage and clean it before installation. Avoid twisting the ring or stretching it over sharp features, and keep it seated as the joint closes. During inspection, look for pinching or displacement around the circumference. A replacement should use the matching section and material so the original sealing arrangement is maintained rather than altered by a visually similar ring.
- Material options
- EPDM / Silicone. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Rubber: 30–90 Shore A. Silicone: 20–80 Shore A. The rubber needs room to deform under the intended compression without being squeezed into an unsuitable gap.
- Custom dimensions
- The ring diameter and section must match the groove or mating faces, while the compound is selected for the actual operating conditions.
- Fit & assembly
- Check the groove for damage and clean it before installation.
- Use & inspection
- A replacement should use the matching section and material so the original sealing arrangement is maintained rather than altered by a visually similar ring.
Photos illustrate structure or material only. The ring diameter and section must match the groove or mating faces, while the compound is selected for the actual operating conditions. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.
From part requirements to production
01
Define the part
Identify key dimensions, mating surfaces and quantity
02
Review material & tooling
Agree the compound and manufacturing approach
03
Evaluate the sample
Review the fit and agreed requirements in the assembly
04
Produce & inspect
Manufacture and check against the approved requirements
Review the intended assembly
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.
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