Rubber butyl stopper
The rubber butyl stopper is one of the most commonly used products to seal holes and to stop dirt and debris from entering the container or for the liquids or gasses contained to penetrate outside. These small units are available in a variety of sizes, and the rubber butyl stopper size is determined depending on the top and bottom diameters of the unit. Depending on your needs, you need to find the correct size for your project where the plug would tightly fit the hole without being put under too much pressure and without being able to loosely come out. It is crucial for you to select the right diameter for your needs because if you don’t, you risk damaging the stopper or letting things from outside penetrate inside the container.
This type of rubber is preferred in a variety of industries because of its physical properties, and this is one of the most durable types of rubber. It will not easily get damaged no matter how often you use it, you can put it under a lot of pressure without it tearing or losing its shape, and you can subject it to liquids and chemicals without causing any issues to it. In addition to this, when you use the rubber butyl stopper to plug holes that are constantly exposed to extreme temperatures, you won’t have to worry about the plug failing you. It can withstand both really high and low temperatures, and you will not notice any difference in the quality of the unit even after a long time of usage.
The rubber butyl stopper can come in a variety of colors and hues so that it properly fits your needs, and even though black or gray stoppers are the most commonly used ones, you can still opt for another hue. We can help you select the right rubber butyl stopper for your project, and we can answer any questions you might have regarding the units.
Our Butyl Stoppers Size Chart
Bottle Stopper Size Catalog
Compare the listed butyl stopper dimensions against the bottle opening and seating arrangement. Confirm the selected profile using the part drawing.
Butyl Rubber Stopper(Anaerobic bottle stopper)
Compare A, B, C, D and E in mm against the selected stopper drawing. The illustration shows a related profile; confirm the precise underside and fit before specifying the part.

Need a different size? Share your drawing, mating dimensions and intended use to discuss a suitable part.
Discuss Your RequirementsProduct specifications
- Product form
- Vial or bottle closure matched to its neck finish
- Material
- Butyl rubber. Specify the compound grade for the selected service.
- Dimensions to confirm
- Vial neck bore, sealing flange, plug depth and any crimp-cap interface.
- Exposure to evaluate
- Heat and cold cycling 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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