Silicone Lab Stopper
With more than 10+ years of experience in the silicone stopper manufacturing field, we have started producing all kinds of silicone corks. For instance, you can find wine stoppers, flask corks, lab stoppers, fuel line stoppers, and many more in our product list. Hence, if you need decent-quality silicone lab stopper solutions at an affordable price, it is best to check out our products. On bulk orders, the overall price of the silicone lab stoppers will be less.
Size 0 solid silicone stopper is ideal for 12 x 100 mm test tubes. Size 1 one hole silicone cork is suitable for 25 ml glass round bottom flask, 50 ml glass pear-shaped flask, and 100 ml glass pear-shaped flask. Size 19 silicone stopper has 53 mm top, 49 mm bottom, and 40 mm height, and are ideal for 250 ml wide mouth Erlenmeyer flask, 1000 ml round bottom flask, and 1000 ml wide mouth Erlenmeyer flask. Size 10 cork is ideal for 500 ml vacuum filtering flask, 500 ml distilling flask with a sidearm, 250 ml glass round bottom flask, 500 ml glass round bottom flask, 250 ml glass flat bottom flask, 500 ml glass flat bottom flask, 50 ml wide mouth Erlenmeyer flask, and 250 ml narrow mouth Erlenmeyer flask.
Size 11 and size 12 solid stoppers can be used for shutting 100 ml wide mouth Erlenmeyer flask. Size 14 solid stopper, size 15 one hole cork, size 15 two-hole cork, and size 16 solid stopper are some of the versatile silicone lab stoppers. For a 2000 ml wide mouth Erlenmeyer flask, you can use a size 24 or size 25 silicone lab stopper. Unlike other manufacturers in this field, we offer custom options as we understand the need for specific sizes and unique design stoppers. In terms of material quality, product flexibility, durability, and longevity, no other company can beat our silicone lab stoppers. If you are interested in our products, you can quickly obtain them by getting in touch with our team.
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
- Wine bottles, laboratory flasks, fuel-line closure, test tubes and Erlenmeyer flasks. Size the part against the selected assembly.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip. Match these to wine bottles and laboratory flasks.
- Profiles discussed
- Round profiles and flat contact faces. Select the profile that matches the mating part and dimension that section explicitly.
- Contact conditions
- Wine and fuel: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- 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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