Black Rubber Caps
You will find black rubber caps in a variety of forms and adapted to a variety of functions. Rubber is such a material that it allows caps, often called end caps, to be of any shape, and also of any color, although they are usually black. There are screw caps, nut caps, secure caps, cone caps, tapered caps and many others, not to mention all the models now because there are so many.
Each of these types of black rubber caps is intended for different industrial and consumer use. But they also have a very versatile use, so if you estimate that you can use black rubber caps for something other than what the manufacturer has indicated as the primary use, feel free to do so. They can be used for protecting, masking, sealing, finishing and much more. You can conclude by the name of black rubber caps what is there primary use.
Whether they are made of natural rubber, neoprene or some other rubber-like material, they are very resistant to all types of damage, which include cracks, chemicals, UV light damage and everything else. Also, temperatures twice as high as boiling, as well as below minus 60 degrees Celsius, are not something that will damage any type of black rubber caps. That is why you will find them as much in home use as in industrial use. Few materials in the world have such diverse applications as rubber. They are also black rubber caps watertight and waterproof so you can expose them to contact with water without the risk of them being damaged or water penetrating through them.
There is virtually no size of black rubber caps that you cannot find on the market. Any diameter size you need, both inside and outside, as well as groove width and all other size parameters, are available in the market.
Rubber Cap Size Catalog
Compare the internal and external dimensions of rubber caps against the part being covered.
Custom colors are available to your Pantone color code. Include the code in your inquiry.
Rubber Caps-RSE
Compare A (inner diameter), B (outer diameter), C (inner depth) and D (total height), in mm.

Need a different size? Share your drawing, mating dimensions and intended use to discuss a suitable part.
Discuss Your RequirementsProduct specifications
- Product form
- Protective cover fitted over a component end
- Material options discussed
- Chloroprene rubber (CR) and natural rubber / latex. Choose one formulation for the actual contact and loading conditions.
- Application focus
- Masking during surface finishing. Size the part against the selected assembly.
- Dimensions to confirm
- Mating outside dimensions, cover depth, cavity and wall thickness. Match these to masking during surface finishing.
- Color options
- Custom colors are available to your Pantone color code. Include the code in your inquiry.
- Profiles discussed
- Tapered sections. Select the profile that matches the mating part and dimension that section explicitly.
- Installation discussed
- Screw attachment. Identify the chosen retention method and the surface or hardware it engages.
- Exposure to evaluate
- Sunlight or UV. Validate the selected material under the combined conditions.
- Cover retention
- Check the installed overlap and pull-off force on the actual end profile.
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