Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Oil resistant rubber washer/ waterproof silicone rings
CUSTOM RUBBER & SILICONE MANUFACTURING
Oil resistant rubber washer/ waterproof silicone 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
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
An oil resistant rubber washer provides a compliant ring at a joint exposed to a specified oil or related fluid. Its dimensions and compound can be customized around the mating faces. Material selection should account for the actual substance and operating temperature, since different rubber formulations do not share identical compatibility.
Identify whether contact is continuous, occasional or mainly encountered during servicing. Also include cleaning agents that reach the joint. The washer's inner opening and outside footprint need support from the mating geometry so the rubber remains in its intended position under compression.
For a sealing application, assess the complete joint with the selected washer rather than relying on material choice alone. Fit it flat and keep grit off the contact faces before closing the assembly. During maintenance, inspect for changes in shape or surface condition and compare the compression pattern around the ring. If a replacement is needed, preserve both the formulation and thickness. A ring that fits the same shaft but changes the closed joint spacing can alter the seal even when its oil compatibility is appropriate.
- Material options
- Silicone. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Silicone: 20–80 Shore A. The washer's inner opening and outside footprint need support from the mating geometry so the rubber remains in its intended position under compression.
- Custom dimensions
- A ring that fits the same shaft but changes the closed joint spacing can alter the seal even when its oil compatibility is appropriate.
- Fit & assembly
- Fit it flat and keep grit off the contact faces before closing the assembly.
- Use & inspection
- During maintenance, inspect for changes in shape or surface condition and compare the compression pattern around the ring.
Photos illustrate structure or material only. The washer's inner opening and outside footprint need support from the mating geometry so the rubber remains in its intended position under compression. 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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