CUSTOM RUBBER & SILICONE MANUFACTURING

Rubber dustproof covers caps for usb seals

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

Rubber dustproof covers close unused USB areas after a cable or accessory has been removed. The custom cap should suit the particular port and the surrounding enclosure, leaving enough access to fit it without touching delicate connector features. Size, material and color can be chosen for the device layout.

Make cover replacement part of the normal disconnection sequence. Inspect the cap before fitting, especially if it has been stored nearby while the port was in use. Its protective surface should be free of lint or particles that could be pushed into the opening. Seat it in the intended orientation rather than forcing a close but incorrect profile into the port. Check that any adjoining connection still has its needed clearance. When the cover is next removed, examine the inserted edge for damage and keep it separate from dirty work surfaces. If it no longer stays located during normal handling, replace the fitted part rather than leaving the port partly covered by a distorted cap.

Material options
Rubber compound options, customized alongside the profile and contact conditions.
Hardness selection
Solid rubber options: 30–90 Shore A. Rubber dustproof covers close unused USB areas after a cable or accessory has been removed.
Custom geometry
Check that any adjoining connection still has its needed clearance.
Fit evaluation
Inspect the cap before fitting, especially if it has been stored nearby while the port was in use.
Color & OEM
Custom colors; identification clear of connectors and removal features.

Photos illustrate structure or material appearance only. The custom cap should suit the particular port and the surrounding enclosure, leaving enough access to fit it without touching delicate connector features. 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].