Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Rubber gaskets and seals custom round EPDM NBR ring gasket
CUSTOM RUBBER & SILICONE MANUFACTURING
Rubber gaskets and seals custom round EPDM NBR ring 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
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
Rubber gaskets and seals can be custom molded as round components for a defined joint. The ring dimensions should match the receiving seat, while the compound is selected for the actual medium and operating conditions. EPDM and NBR are distinct material options with different suitability considerations.
Define the substance, temperature, contact duration, and cleaning exposure before choosing the compound. The ring's cross section also needs to suit the available compression space. A correct outside diameter alone does not establish that the part will fit the groove or sealing faces as intended.
Clean the joint and inspect the mating surfaces before installation. Place the ring without twist or unnecessary stretch, keeping it aligned as the parts close. Avoid using excessive tightening to compensate for an unsuitable thickness. The complete assembly determines its required sealing performance under pressure, movement, or environmental exposure. During replacement, check for damage in the receiving feature and use the matching profile and selected material rather than substituting a visually similar round seal from another application.
- Material options
- EPDM / NBR. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Rubber: 30–90 Shore A. The complete assembly determines its required sealing performance under pressure, movement, or environmental exposure.
- Custom dimensions
- The ring dimensions should match the receiving seat, while the compound is selected for the actual medium and operating conditions.
- Fit & assembly
- Place the ring without twist or unnecessary stretch, keeping it aligned as the parts close.
- Use & inspection
- During replacement, check for damage in the receiving feature and use the matching profile and selected material rather than substituting a visually similar round seal from another application.
Photos illustrate structure or material only. The ring's cross section also needs to suit the available compression space. 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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