CUSTOM RUBBER & SILICONE MANUFACTURING

Custom molded size rubber seal plug silicone bottle stopper

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

Vulcanization workshop illustration with green molding presses and blue collection bins

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 silicone bottle stopper needs a seated position that leaves practical access for removal. A plug pushed deeper may feel more firmly held while leaving too little exposed material to grip. The inserted profile and stopping feature should therefore be developed with the removal method in mind.

Check the actual bottle mouth over the usable depth. If the neck narrows below the rim, the stopper can meet resistance before reaching its intended contact. The closure should not depend on being forced farther down each time it is reused to reproduce a familiar tight feel.

Evaluate opening and closing as a sequence on the selected bottle. Keep the glass rim undamaged and the working contact clean, and choose the formulation for the contents and care conditions. The complete container determines its sealing requirements. During inspection, look for lasting distortion in the section that remains inside the neck and for damage caused by gripping the exposed portion. Replace a worn profile appropriately rather than sacrificing access by driving it farther into the bottle.

Material options
Custom silicone compound; formulation and geometry developed together.
Hardness selection
Silicone options: 20–80 Shore A. The inserted profile and stopping feature should therefore be developed with the removal method in mind.
Custom geometry
Check the actual bottle mouth over the usable depth.
Fit evaluation
Evaluate opening and closing as a sequence on the selected bottle.
Color & OEM
Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. The inserted profile and stopping feature should therefore be developed with the removal method in mind. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

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

Working conditions

Identify temperature, contact fluids and repeated movement.

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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Send your requirements
and selected drawings

All files and photos you share with us are handled under strict confidentiality procedures and will not be disclosed to any third party.

DISCUSS THIS COMPONENT

Request a Custom Quote

You can also email us directly at [email protected].