Rubber plug stopper
The rubber plug stopper finds its use in different trades, and as the name suggests, this accessory is used to prevent spillage or contamination of liquids. It can be used to stop any fluids from escaping the container, and it is also used to keep the containers clean, safe, and pure. When it comes to the right type of rubber plug stopper, you should know that it all depends on the purpose of this accessory, the size of the hole in the container, and your personal preferences.
When looking for the right accessories for your needs, you should focus on its physical properties, and on the size of the rubber plug stopper. In today’s market, you can find units that vary in size, and you should pay attention to the top and bottom diameter of the plug, along with its height. In some cases, the rubber plug stopper may contain a hole in it so that you can easily put your equipment in it, and you should know if you are looking for a solid unit or one that contains an opening. The size of the opening may vary as well, so consider your needs before choosing the right one.
The reason why manufacturers choose the rubber plug stopper is that it is extremely easy to install and use, and you don’t need to spend too much time on maintenance. In case you want to reuse the accessories, you can easily clean them by wiping the dust off, or just washing the units. They are water-resistant and they are dustproof, and they also provide the best protection with it comes to heat and chemicals. Note that they come with different designs, shapes, and forms, and you can also pick the color of the unit to suit your project. You can choose to purchase them in bulk, or you can get samples to find the right rubber plug stopper for you.
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
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip.
- Contact conditions
- Water: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- Exposure to evaluate
- 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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