CUSTOM RUBBER & SILICONE MANUFACTURING

rubber connector cap custom made silicone end caps

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

Silicone end caps for connector protection need an internal profile that fits the intended retaining surface without pressing on sensitive contact features. Nearby latches, cable exits, and shoulders can limit how the cap approaches and how deeply it seats, so the connector's maximum outline is only a starting point.

Check the selected cap against the actual connector configuration. Leave access for removal without levering against pins or a thin housing edge. If the cap is intended to remain attached during storage or handling, assess the forces that could displace it rather than judging retention from one straight pull alone.

Keep the cap interior clean before fitting and inspect the perimeter for incomplete engagement. Any required dust or water protection belongs to the complete fitted interface and its exposure conditions. During reuse, examine the hidden contact area for cuts and embedded particles. A cap that has become loose or distorted should be corrected before its presence is relied on to protect the connector in routine handling.

Material options
Custom silicone compound; formulation and geometry developed together.
Hardness selection
Silicone options: 20–80 Shore A. Leave access for removal without levering against pins or a thin housing edge.
Custom geometry
Nearby latches, cable exits, and shoulders can limit how the cap approaches and how deeply it seats, so the connector's maximum outline is only a starting point.
Fit evaluation
Check the selected cap against the actual connector configuration.
Color & OEM
Custom colors; identification clear of connectors and removal features.

Photos illustrate structure or material appearance only. Silicone end caps for connector protection need an internal profile that fits the intended retaining surface without pressing on sensitive contact features. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

FIND THE RIGHT FIT

End Cap Size Catalog

Compare inside diameter A with the outside of the part being covered. Check inside depth C and overall dimensions B and D for available clearance. These RSE references show a round cap with one closed end.

RSE End Caps

43 closed-end cap sizes. A is the inside diameter and C is the usable internal depth; B and D describe the outside envelope.

DIMENSION GUIDE
RSE End Caps plan and section dimension guide.
Profile reference only. Use the dimensions listed for each part number.
PRODUCT APPEARANCE
Generated product visualization of RSE End Caps.
Illustrative product rendering. Refer to the table for dimensions.
P/NABCDColorUnit
RSE3.7-7-93.77911black,whitemm
RSE4.7-8-94.78911black,whitemm
RSE5.7-9-105.791012black,whitemm
RSE6.7-10-106.7101012black,whitemm
RSE7.7-11-117.7111113black,whitemm
RSE8.7-12-128.7121214black,whitemm
RSE9.7-14-139.7141315black,whitemm
RSE10.7-15-1410.7151416black,whitemm
RSE11.7-16-1511.7161517black,whitemm
RSE12.7-17-1512.7171518black,whitemm
RSE13.7-18-1513.7181518black,whitemm
RSE14.7-19-1514.7191518black,whitemm
RSE15.7-20-1615.7201619black,whitemm
RSE16.7-21-1616.7211619black,whitemm
RSE17.7-22-1617.7221619black,whitemm

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.

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].