Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Waterproof dustproof silicone EPDM sealing rubber o-ring washer
CUSTOM RUBBER & SILICONE MANUFACTURING
Waterproof dustproof silicone EPDM sealing rubber o-ring washer
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
A sealing rubber O-ring washer provides a custom rubber interface around an opening or joint. The selected profile should correspond to the receiving seat, whether the design uses a round section or a flat washer form. The ring's dimensions and support determine how it makes contact when the assembly closes.
Silicone and EPDM are different material options whose suitability depends on the medium, temperature, and cleaning conditions. Choose the exact compound for the application rather than treating both names as a single specification. The groove or mating faces must also provide the intended compression without pinching the rubber.
Install the ring on clean surfaces and keep dust or loose particles out of the sealing area. Check that it remains seated as the parts are brought together. Any required water or dust protection should be evaluated on the complete assembled joint under its expected exposure conditions. During maintenance, inspect the ring and mating surfaces together, and replace damaged rubber before reassembly rather than relying on additional tightening to recover the seal.
- 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 groove or mating faces must also provide the intended compression without pinching the rubber.
- Custom dimensions
- The selected profile should correspond to the receiving seat, whether the design uses a round section or a flat washer form.
- Fit & assembly
- The ring's dimensions and support determine how it makes contact when the assembly closes.
- Use & inspection
- During maintenance, inspect the ring and mating surfaces together, and replace damaged rubber before reassembly rather than relying on additional tightening to recover the seal.
Photos illustrate structure or material only. A sealing rubber O-ring washer provides a custom rubber interface around an opening or joint. 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.
EXPLORE RELATED DESIGNS
Similar Products
Explore similar part structures and applications for your next project.
