5 mm plug stopper silicone
The 5 mm plug stopper silicone is used in pretty much every industry to seal openings and provide protection against water, moisture, dirt, or dust. These small units are perfect for any detailed jobs that require a lot of precision and protection. Silicone is the best material when it comes to durability and resistance, and it won’t get damaged or lose its shape no matter how much or little you use it. When we invest in these units, we want to ensure that we won’t have to deal with a too complex installation process, and we don’t want to spend too much time in maintenance. Well, the 5 mm plug stopper silicone is the perfect unit for every job because you don’t need any specific tools to install or remove it, and even if you have no prior knowledge or skills, you can easily use this small unit. As you already know, silicone is a material that can be washed and cleaned, and you won’t have to do any scrubbing to remove anything from it.
To ensure that it is properly positioned, you need to first wash the opening or clean it to remove any excess particles or dust, and you also need to run the 5 mm plug stopper silicone under water to make sure there is nothing on it. In case there is any dirt on either the container or the plug, the seal will not be tight, and you risk air or moisture penetrating inside it.
Make sure that you have chosen the right size of the stopper, and know that you can reach out to us if you have any questions about the dimensions. The 5 mm plug stopper silicone can be modified, and we are here to help you choose the right design, shape, or even color of the unit.
Stopper & Plug Size Catalog
Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.
Custom colors are available to your Pantone color code. Include the code in your inquiry.
RST T-Shaped Plugs
Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.

RSA Tapered Corks
Compare large-end diameter A, small-end diameter B and Height, in mm. The mating bore and required seating depth determine where the taper contacts the opening.

RSB Undercut Plugs
Compare neck diameter A, flange diameter B, flange-to-lip distance C and flange thickness D. Check panel thickness and rear clearance. E refers to the underside recess.

RSD T-Shaped Stoppers
Compare stem diameter A, flange diameter B, stem length C and head thickness D, in mm. Check the seating surface and available depth as well as the hole diameter.

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.
Discuss Your RequirementsProduct specifications
- Product form
- Removable closure fitted inside an opening
- Material
- Silicone. Specify the compound grade for the selected service.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip.
- Nominal size reference
- 5 mm. Identify what each nominal value measures and confirm all mating dimensions and tolerances.
- Contact conditions
- Water and air: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- Exposure to evaluate
- Moisture and dust or debris. Validate the selected material under the combined conditions.
- Seating check
- Check the sealing contact around the opening and the force needed for insertion and removal.
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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