Silicone rubber caps
One of the significant problems in the powder coating and e-coating industry is protecting the right equipment at the right time. Often in powder coating, E-coating, and custom painting processes, there is a major risk that your equipment gets damaged because you didn’t have anything to cover or protect it with. The same problem occurs with media blasting, where media blasters can’t operate fully for the risk of damaging an uncovered component.
If you are stressed about this and don’t know what to do, then worry not because we have the perfect solution for you – silicone rubber caps. Silicone rubber caps are exceptional components that protect your precious equipment during powder coating, e-coating, and custom painting operations. Silicone rubber caps don’t fall off or change their size or shape over time, so you can paint with the assurance that your precious equipment is protected fully.
Silicone rubber caps are best suited for these types of environments for one more reason – their extremely high heat resistance. Quality silicone rubber caps have no problem withstanding temperatures up to 300 degrees Celsius as long as it’s within their timed range. Their inert properties allow them resistance from acids that may be contained in the powder coating paint or custom paints. This is extremely important because while caps of other materials might melt, react harmfully, or change shape, silicone rubber caps stay on and mask the parts they are on.
The uses of silicone rubber caps don’t end there. It can be used in any type of environment that requires rubber caps. That’s why even plumbers, scientists, and technicians carry a few silicone rubber caps with them in emergency cases. Silicone rubber caps may also be used in the medical industry to be used with sterilized equipment. They can easily withstand sterilization temperatures, which makes them quite valuable to protect the sharp edges of medical equipment.
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
- Silicone. Specify the compound grade for the selected service.
- 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.
- Cover retention
- Check the installed overlap and pull-off force on the actual end profile.
- Mask retention
- Check the cap remains seated through the paint and cure cycle; define the permitted change in shape and removal force.
Need a quote or a custom part?
Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.
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