Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · High quality silicone rubber seal/round rubber thick washer
CUSTOM RUBBER & SILICONE MANUFACTURING
High quality silicone rubber seal/round rubber thick 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 round rubber thick washer should remain supported across the contact area intended by the assembly. The custom silicone seal geometry needs an inside opening, outside diameter, and thickness that work with the mating parts. More visible rubber does not automatically provide more useful contact.
Check for recesses or steps beneath the washer. Material extending beyond a supporting face can be displaced into a gap as the joint closes. The section height should allow the parts to reach their designed assembled position without preventing fastener engagement.
Choose the compound for the actual temperature and substances. Position the washer flat and verify that its center remains aligned during closure. Follow the specified fastening arrangement rather than tightening until the rubber appears fully flattened. During maintenance, inspect the outside edge and center opening for damage or permanent distortion. Use the required section for replacement, preserving the intended closing geometry instead of adding thickness to conceal defects elsewhere in the joint.
- Material options
- Silicone. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Silicone: 20–80 Shore A. Choose silicone stiffness after fixing bore, outer diameter and thickness; evaluate how that complete annular section compresses between the mating parts.
- Custom dimensions
- The section height should allow the parts to reach their designed assembled position without preventing fastener engagement.
- Fit & assembly
- Position the washer flat and verify that its center remains aligned during closure.
- Use & inspection
- During maintenance, inspect the outside edge and center opening for damage or permanent distortion.
Photos illustrate structure or material only. The custom silicone seal geometry needs an inside opening, outside diameter, and thickness that work with the mating parts. 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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