Skip to content
RUBBER & SILICONEStandard parts. Custom solutions.

glass bottle rubber stopper

glass bottle rubber stopper

Glass bottles are very often used in the household, but also in some smaller production plants. If you are a fan of homemade wines, beers, juices, or soda water, you will find ways to appreciate glass bottles and corks for them. We all know how much better and healthier it is to store groceries in glass bottles compared to plastic ones. However, without a good plug, a glass bottle does not offer many possibilities. That is why the quality of the stopper is just as important as the quality of the bottle. It is the one that keeps the product from carbonation and fermentation. Plastic and rubber stoppers will very easily and for a long time keep freshness and all the ingredients of your food. Rubber stoppers on glass bottles enable long-term storage of the product, so you can be sure that your homemade kefir, kombucha, or some special oil, are completely safe. 

Plastic plugs are very easy to put on and take off and you can use them over and over again. Wash the glass bottle cap when you have used up your favorite freshly squeezed juice and use it again. It will protect the product from oxidation, decay and evaporation of nutrients.

These plugs are made of high-quality rubber that can be healthy and safe in contact with food. They are made in different shapes: with eyelets for easier opening of the glass bottle, completely flat, slightly rounded, with or without thread. Also, to suit each neck of the glass bottle, they are produced in different volumes and lengths of the neck that enters the bottle. What is important is that they are resistant to chemicals, different types of oils. Withstand temperatures from -40 to 120 degrees c. To repeat once again, a glass bottle rubber stopper is not only a long-term investment but also has a positive effect on health.

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.

Dimension guide
T-shaped stopper — original A, B, C, D and E dimensions
A recessed RST variant is illustrated. The head remains closed. Check E and the approved section for the selected part.
Product appearance
Rubber Silicone Plugs(T-shaped-RST) — product view
Illustrative product rendering. Refer to the selected part drawing and table for dimensions.
PartNo.A(mm)B(mm)C(mm)D(mm)E(mm)
RST2.5-5.5-5.32.55.55.320
RST2.7-5.5-52.75.5520
RST3-4.3-4.534.34.50.80
RST3-7-73772.20
RST3.3-6.5-63.36.561.50
RST3.5-6.5-63.56.5620
RST3.8-7-10.53.8710.51.50
RST3.8-7-73.8771.50
RST3.8-7-63.8761.50
RST4-7.5-647.5620
RST4-9.5-749.572.50
RST4.3-8-64.3861.50
RST4.5-7.5-64.57.5620
RST4.8-6.8-3.64.86.83.60.90
RST4.8-9-74.8971.50

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.

Discuss Your Requirements

Product specifications

Product form
Removable vessel-neck closure
Application focus
Bottle necks. Size the part against the selected assembly.
Dimensions to confirm
Opening diameter, closure profile, insertion depth and exposed grip. Match these to bottle necks.
Contact conditions
Juices, water, food ingredients and 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.

Contact Us Now!

Email us[email protected]

Ready to Find Your Rubber Part?

Send your requirements or drawing to discuss materials, dimensions and custom parts.

Request a Quote

Request a Quote

Tell us about your part, including dimensions, material, quantity, application and any special requirements. Attach a drawing if available to help us prepare your quote.

Contact Our Team

Prefer email? Contact us at [email protected]

Attach a drawing (optional)