Custom manufacturing example · Butyl rubber plugs for medical threaded rubber screw hole plugs

CUSTOM RUBBER & SILICONE MANUFACTURING

Butyl rubber plugs for medical threaded rubber screw 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

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

Butyl rubber plugs for medical applications can be custom molded for a specified receiving feature. A threaded or screw-hole arrangement needs the correct thread relationship and seating surface as well as the selected compound. The closure should be developed as part of the complete product in which it will serve.

Establish whether the plug closes an equipment access hole or forms part of a container-contact system. These uses can have different requirements for retention, cleanliness, contact compatibility, and processing. A medical description does not establish sterility or suitability for every clinical purpose. The exact compound and finished geometry must correspond to the defined application.

Check the thread form, engagement length, and stopping position so the plug seats without being twisted into an incompatible feature. The intended seal may occur at a separate face rather than along the thread itself. Handle and assemble the component through the cleanliness process established for the finished product, avoiding damage to the rubber. Any cleaning or sterilization method must suit the selected construction. Inspect the closure and receiving feature before use, and preserve the full specified material and geometry during replacement rather than choosing only by a nominal screw-hole size.

Material options: Butyl rubber compound options, customized alongside the profile and contact conditions.
Hardness selection: Solid rubber options: 30–90 Shore A. Check the thread form, engagement length, and stopping position so the plug seats without being twisted into an incompatible feature.
Custom geometry: A threaded or screw-hole arrangement needs the correct thread relationship and seating surface as well as the selected compound.
Fit evaluation: The exact compound and finished geometry must correspond to the defined application.
Color & OEM: Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. A threaded or screw-hole arrangement needs the correct thread relationship and seating surface as well as the selected compound. 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.