Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · High quality black oval SBR rubber stopper/caps for oil-proof
CUSTOM RUBBER & SILICONE MANUFACTURING
High quality black oval SBR rubber stopper/caps for oil-proof
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 black oval SBR rubber stopper is shaped for a noncircular closure interface. The long axis, short axis and end contours all contribute to fit, so a single width is insufficient for selecting a replacement. Custom molding allows the body to follow the opening while leaving an exterior surface suitable for fitting and removal.
For an application involving oil, select the compound by compatibility with the actual fluid and operating temperature. Do not treat the oval shape, black color or SBR designation as proof of suitability for every oil. The material and finished closure need to be evaluated under the conditions in which they will be used.
Align the stopper with the opening before pressing it home. The rounded ends should seat without folding, and the longer sides should not bow away from the mating surface. Look around the entire perimeter after installation. During maintenance, inspect for swelling, softened regions or a changed shape, and address those changes before refitting the closure. Keep oil residue from masking damage at the contact edge.
- Material options
- SBR compound options, customized alongside the profile and contact conditions.
- Hardness selection
- Solid rubber options: 30–90 Shore A. Custom molding allows the body to follow the opening while leaving an exterior surface suitable for fitting and removal.
- Custom geometry
- Align the stopper with the opening before pressing it home.
- Fit evaluation
- The rounded ends should seat without folding, and the longer sides should not bow away from the mating surface.
- Color & OEM
- Custom colors; OEM identification positioned outside closure contact surfaces.
Photos illustrate structure or material appearance only. The rounded ends should seat without folding, and the longer sides should not bow away from the mating surface. 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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