Rubber cork stoppers
One thing about rubber cork stoppers that makes them very effective is that they can combine the resilience and compression properties of a cork with the durability and flexibility of rubber materials. As a result, you will have one of the most effective options when it comes to guaranteeing that you will be able to make a quick stop to any type of pipe or material. These are some of the best sealing options available on the market. Rubber cork stoppers provide high resistance to a wide range of materials and fluids, which includes oil. The moment you start using a rubber cork stopper, it all becomes hermetically sealed, and there will be no leakages. This is similar to using a cork stopper for a bottle in order to ensure that the liquid qualities will be preserved for a long period. Something similar to this actually occurs in this case. However, you will instead use it as a stopper for pipes or a multitude of pipes, which is one of the many uses for it. The rubber cork stopper is also ideal to be used for laboratory glassware. All you have to do is make sure you get the size that you need. There may be various sizes of rubber cork stoppers you will require, and that will vary depending on your requirements, therefore make sure you remember that. Luckily, it’s not difficult to find the proper stopper size as there are several options available. Getting and using this type of product is something with which you can make a huge difference. It is something that you will probably want to consider. You will have a great experience with rubber cork stopper, and you will find it highly innovative, at the same time reliable, as well as you will have a lot of pleasure in using it!
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
- Application focus
- Bottle necks and laboratory vessels. Size the part against the selected assembly.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip. Match these to bottle necks and laboratory vessels.
- Contact conditions
- Lubricating oil: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- Exposure to evaluate
- Oil splash. 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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