Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Rectangular rubber gasket waterproof silicone epdm rubber gasket
CUSTOM RUBBER & SILICONE MANUFACTURING
Rectangular rubber gasket waterproof silicone epdm rubber 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
A rectangular rubber gasket should provide a continuous contact path around the full opening where water resistance is required. The long sides, corners, and fastening regions may receive different compression, so the complete face geometry matters. Silicone and EPDM configurations should be selected for their actual exposure rather than treated as equivalent because they can share the same outline.
Check side lengths, corner radii, thickness, and supported sealing width. Include the temperature and cleaning substances that reach the joint. The cover should close evenly without leaving an unsupported section between fixing points.
Place the gasket without stretching the rectangle into alignment. Inspect for a corner fold or an edge shifted into the central opening. Assess water resistance on the finished joint under the intended conditions. During maintenance, compare contact marks around the perimeter and correct uneven closing surfaces before replacement instead of adding gasket thickness that changes compression at every other part of the joint.
- 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 long sides, corners, and fastening regions may receive different compression, so the complete face geometry matters.
- Custom dimensions
- Check side lengths, corner radii, thickness, and supported sealing width.
- Fit & assembly
- Place the gasket without stretching the rectangle into alignment.
- Use & inspection
- During maintenance, compare contact marks around the perimeter and correct uneven closing surfaces before replacement instead of adding gasket thickness that changes compression at every other part of the joint.
Photos illustrate structure or material only. A Rectangular rubber gasket should provide a continuous contact path around the full opening where water resistance is required. 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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