size 8 silicone stopper
Our company specializes in manufacturing and distributing a high-quality, size 8 silicone stopper that is suitable for laboratory applications, environments that experience quick and drastic changes in temperatures, as well as other industrial and assembly application processes. Our size 8 silicone stopper is designed to withstand prolonged exposure to high temperatures, but this isn’t the only thing that it can withstand and resist. It is also resistant to a wide range of chemicals, some acids, thermal coating, ozone, sunlight, weathering, liquids, humidity, dirt, and grime, all of which enable our customers to use it in both outdoor and indoor settings. All of these characteristics make it an ideal option for almost every industry out there, including food & beverage, automotive, marine, and military industries.
As an organization that has been in the industry for quite some time, we ensure that our size 8 silicone stopper is manufactured from high-quality, raw materials, which is exactly why our customers can use it for tightly sealing a wide range of containers, including bottles, vials, hoses, containers, beakers, test tubes, and so on. Since it is manufactured from high-quality materials, it will not change the composition of the substances inside of it, which means that the smell, taste, and color of the substance will not change.
It is also worth mentioning that our company offers customization services for the size 8 silicone stopper. Hence, if you cannot find what you are looking for in our online store or website, you might be capable of placing a customization order, and together with our customer support team – that can guide you through the entire process – you can create a size 8 silicone stopper according to your needs and project requirements. This means that you can choose the design, color, texture of the stopper, and you could even opt for creating a stopper kit.
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.
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.
- Application focus
- Laboratory vessels, bottle necks, vials and test tubes. Size the part against the selected assembly.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip. Match these to laboratory vessels and bottle necks.
- Size designation
- Designation 8. Match it to the specific top diameter, bottom diameter and height on the supplier drawing.
- Size selection
- Choose the drawing or chart row by its functional dimensions and units; verify mating-part tolerances before ordering.
- Contact conditions
- Acids and food ingredients: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- Exposure to evaluate
- Sunlight or UV, ozone, outdoor weather, 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.
Email us[email protected]