Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Rubber stopper waterproof silicone hole plugs
CUSTOM RUBBER & SILICONE MANUFACTURING
Rubber stopper waterproof silicone hole plugs
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
Silicone hole plugs close openings through a fitted molded profile. For a closure intended to exclude water, the contact needs to be continuous around its working surface. A top flange can hide the opening while the inserted section remains partly unseated, so appearance from one side is not enough to assess the fit.
Match the plug to the hole geometry and available depth. Check whether a retaining groove needs a particular panel thickness and whether an internal feature limits insertion. The intended grip area should remain accessible for removal without requiring a tool to cut into the sealing edge.
Fit the plug evenly and inspect for a tilted head, rolled lip, or local gap. Remove particles from the mating surfaces before closure. Waterproof performance must be established for the actual plug, opening, and exposure conditions; a flexible material does not create a universal seal. After reuse, examine the inserted section for damage or lasting deformation that may be less obvious than wear on the exposed head.
- Material options
- Silicone, EPDM, NBR, natural rubber, butyl, neoprene or FKM, selected for the opening and contact medium.
- Hardness range
- Rubber: 30-90 Shore A; silicone: 20-80 Shore A. Final hardness depends on the selected compound and part design.
- Custom shape & size
- Plug body, insertion depth and retaining features developed around the hole and removal requirements.
- Color & OEM
- Custom plug colors and OEM branding or packaging to suit your assembly.
- Tooling & samples
- Tooling and sampling follow review of the mating opening and required interference fit.
The plug photos illustrate structure and material only. Our factory at ETOL can develop custom-shaped silicone and rubber closures with the insertion depth and retaining features needed for your opening and removal method.
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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