Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Tearing-resistant square rubber washer/sealing rubber gaskets
CUSTOM RUBBER & SILICONE MANUFACTURING
Tearing-resistant square rubber washer/sealing rubber gaskets
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 square rubber washer should fit its seat without being pulled at individual corners during installation. Custom molding allows the side dimensions, corner geometry, and section to follow the mating assembly. Material selection should reflect the actual contact environment and handling requirements.
Check the inner opening and outer boundary separately. Narrow corner regions can be strained if one dimension is forced to match while another remains misaligned. The supported width should continue around the working path without an edge extending into an unintended gap.
Place the washer flat and inspect all four sides before the mating part closes. Use the assembly's intended sequence so that the rubber is not dragged sideways. During care, remove deposits from the seat and examine the corner transitions for cuts or lasting deformation. Replace with the specified profile rather than trimming or stretching a nearby size. Preserving the correct fit is part of protecting the washer from installation damage, regardless of the selected compound's tear-related requirements.
- Material options
- Rubber. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Rubber: 30–90 Shore A. Evaluate rubber firmness at the corner transitions and straight sides of the custom seal, retaining the intended section while the joint closes.
- Custom dimensions
- Custom molding allows the side dimensions, corner geometry, and section to follow the mating assembly.
- Fit & assembly
- A square rubber washer should fit its seat without being pulled at individual corners during installation.
- Use & inspection
- During care, remove deposits from the seat and examine the corner transitions for cuts or lasting deformation.
Photos illustrate structure or material only. The supported width should continue around the working path without an edge extending into an unintended gap. 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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