Custom manufacturing example · Custom rubber plug food grade silicone threaded plug

CUSTOM RUBBER & SILICONE MANUFACTURING

Custom rubber plug food grade silicone threaded plug

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 threaded plug provides a custom closure for a matching threaded opening. Its size and color can be tailored to the application, while the thread form and seating arrangement need to follow the mating component. In a food contact assembly, select the finished silicone formulation for the actual contents, contact conditions and cleaning process.

Begin engagement with the plug aligned squarely. Flexible threads can appear to enter even when they are not following the intended path, so check that the part advances evenly. The final closing position should be determined by the designed sealing region rather than by applying progressively more twisting force.

Threads also introduce surfaces where residue can collect. Include access to those surfaces when planning routine cleaning, and remove debris before refitting the closure. Inspect the thread crests and the surface that contacts the opening for tears or distortion. A plug that has become difficult to engage may need cleaning or replacement; forcing it can damage the fit and make subsequent removal harder. Keep replacement variants identified by their actual thread geometry as well as color.

Material options: Custom silicone compound; formulation and geometry developed together.
Hardness selection: Silicone options: 20–80 Shore A. The final closing position should be determined by the designed sealing region rather than by applying progressively more twisting force.
Custom geometry: Its size and color can be tailored to the application, while the thread form and seating arrangement need to follow the mating component.
Fit evaluation: Flexible threads can appear to enter even when they are not following the intended path, so check that the part advances evenly.
Color & OEM: Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. A silicone threaded plug provides a custom closure for a matching threaded opening. 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

Define the part

Identify key dimensions, mating surfaces and quantity

Review material & tooling

Agree the compound and manufacturing approach

Evaluate the sample

Review the fit and agreed requirements in the assembly

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.