Large Stopper Silicone Rubber

2021-12-31 · Stoppers & Plugs

Large Stopper Silicone Rubber

If you are looking for the best corks for laboratory equipment, it is best to check out various types of large stopper silicone rubber solutions. The silicone corks act as a vacuum-tight seal and help to safeguard the liquids inside the laboratory tools from getting influenced by outer particles. As our silicone stoppers have chemically impartial formation, they are likely to work on abrasive working solvents as well. In addition to that, the silicone stoppers are made of high-quality substances which are known for their durability, long-lasting lifespan, and versatility. Our silicone corks also show resistance to high temperatures, and they will withstand breaking down if they undergo heating processes. Besides that, you can use them again after sterilizing and cleaning the corks thoroughly.

Silicone corks come with a pointed underside in several sizes in order to fulfill any container. Our large stopper silicone rubber solutions are relatively simple to use as we practically formulated them with a wide and thin side. The slim part will move into the vessel and shut the jar. You can open it easily by pulling out the wider part. As we manufacture versatile silicone stoppers, you can use them for other purposes: stopping doors, gripping items, stopping pipes, shutting tubes, and many more.

As a high-end manufacturer, we can say that there is a high demand for silicone corks from various industries, especially for large silicone stoppers. To be precise, we get orders from several customers more often as the silicone corks are ideal for industrial, laboratory, and even home use. Our silicone stoppers are flexible, resilient, and long-lasting. You can use them as a cap to close the vessel, and they help in blocking any type of airborne pollutants. Understanding the need for large silicone stoppers, we offer custom design and size solutions as well.

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.

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.

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）
RST2.5-5.5-5.3	2.5	5.5	5.3	2
RST2.7-5.5-5	2.7	5.5	5	2
RST3-4.3-4.5	3	4.3	4.5	0.8
RST3-7-7	3	7	7	2.2
RST3.3-6.5-6	3.3	6.5	6	1.5
RST3.5-6.5-6	3.5	6.5	6	2
RST3.8-7-10.5	3.8	7	10.5	1.5
RST3.8-7-7	3.8	7	7	1.5
RST3.8-7-6	3.8	7	6	1.5
RST4-7.5-6	4	7.5	6	2
RST4-9.5-7	4	9.5	7	2.5
RST4.3-8-6	4.3	8	6	1.5
RST4.5-7.5-6	4.5	7.5	6	2
RST4.8-6.8-3.6	4.8	6.8	3.6	0.9
RST4.8-9-7	4.8	9	7	1.5

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.

Tapered cork — Diameter A, Diameter B and Height — Tapered profile reference. Use Diameter A, Diameter B and Height from the selected row.

Rubber Corks(Tapered-RSA) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	Diameter A	Diameter B	Height	Colour	Materials
RSA1.6-0.4-15.9	1.6	0.4	15.9	Transparent	Silicone
RSA2-0.5-19.1	2	0.5	19.1	Transparent	Silicone
RSA3.2-0.8-15.9	3.2	0.8	15.9	Transparent	Silicone
RSA3.2-1.6-15.9	3.2	1.6	15.9	Transparent	Silicone
RSA4.8-1.6-15.9	4.8	1.6	15.9	Transparent	Silicone
RSA4.8-1.6-19.1	4.8	1.6	19.1	Transparent	Silicone
RSA5.5-1.2-38.1	5.5	1.2	38.1	Transparent	Silicone
RSA6.4-3.2-19.1	6.4	3.2	19.1	Transparent	Silicone
RSA6.4-3.2-25.4	6.4	3.2	25.4	Transparent	Silicone
RSA8.7-4.8-15.9	8.7	4.8	15.9	Transparent	Silicone
RSA8.7-4.8-25.4	8.7	4.8	25.4	Transparent	Silicone
RSA9.2-6.2-12.8	9.2	6.2	12.8	Transparent	Silicone
RSA9.5-6.5-18.5	9.5	6.5	18.5	Transparent	Silicone
RSA11-8.5-17.5	11	8.5	17.5	Transparent	Silicone
RSA11.5-6.5-25	11.5	6.5	25	Transparent	Silicone

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.

Silicone Plugs(Undercut-RSB) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	A (mm)	B (mm)	C (mm)	D (mm)	E (mm)
RSB2.5-6-3	2.5	6	3	1.5	0
RSB3-7-3	3	7	3	2	0
RSB3.5-7.5-3	3.5	7.5	3	2	0
RSB3.6-7.5-6	3.6	7.5	6	2	0
RSB4-8-3	4	8	3	2	0
RSB4.5-8.5-3	4.5	8.5	3	2	2
RSB5-9-3	5	9	3	2	2.5
RSB5.5-9.5-3	5.5	9.5	3	2	3
RSB6-10-4	6	10	4	2	3.5
RSB6.5-10.5-4	6.5	10.5	4	2	4
RSB6.5-12-8	6.5	12	8	2	0
RSB6.7-8.7-5.3	6.7	8.7	5.3	1.3	4.1
RSB7-11-4	7	11	4	2	4.5
RSB7.5-11.5-4	7.5	11.5	4	2	5
RSB8-12-4	8	12	4	2	5.5

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.

T-shaped stopper — original A, B, C and D dimensions — Solid T-shaped profile reference. Dimensions A–D follow the selected part drawing.

Silicone Stoppers(T shape) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	A (mm)	B (mm)	C (mm)	D (mm)	Colour	Materials
RSD2.7-5.5-5	2.7	5.5	5	2	Black, White	Rubber, Silicone
RSD3-7-7	3	7	7	2.2	Black, White	Rubber, Silicone
RSD3.3-6.5-6	3.3	6.5	6	1.5	Black, White	Rubber, Silicone
RSD3.5-6.5-6	3.5	6.5	6	2	Black, White	Rubber, Silicone
RSD3.8-7-6	3.8	7	6	1.5	Black, White	Rubber, Silicone
RSD4-9.5-7	4	9.5	7	2.5	Black, White	Rubber, Silicone
RSD4.3-8-6	4.3	8	6	1.5	Black, White	Rubber, Silicone
RSD4.5-7.5-6	4.5	7.5	6	2	Black, White	Rubber, Silicone
RSD4.8-9-7	4.8	9	7	1.5	Black, White	Rubber, Silicone
RSD5-12-8	5	12	8	2.8	Black, White	Rubber, Silicone
RSD5.3-9.5-7	5.3	9.5	7	1.5	Black, White	Rubber, Silicone
RSD5.5-8.5-7	5.5	8.5	7	2	Black, White	Rubber, Silicone
RSD5.8-10-8	5.8	10	8	2	Black, White	Rubber, Silicone
RSD6-13-8	6	13	8	3.5	Black, White	Rubber, Silicone
RSD6.3-10.5-8	6.3	10.5	8	2	Black, White	Rubber, Silicone

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 closure fitted inside an opening
Material: Silicone. Specify the compound grade for the selected service.
Application focus: Laboratory vessels. Size the part against the selected assembly.
Dimensions to confirm: Opening diameter, closure profile, insertion depth and exposed grip. Match these to laboratory vessels.
Installation envelope: Define the full mating outline and the handling clearance; confirm local support and compression across the larger area.
Contact conditions: Solvents: define concentration, temperature and contact time, then check compatibility with the chosen compound.
Exposure to evaluate: Rubbing or abrasion. Validate the selected material under the combined conditions.
Cleaning and reuse: Specify the cleaning or sterilization cycle discussed for the application, including temperature, duration and permitted reuse.
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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Large Stopper Silicone Rubber

Large Stopper Silicone Rubber

Stopper & Plug Size Catalog

RST T-Shaped Plugs

RSA Tapered Corks

RSB Undercut Plugs

RSD T-Shaped Stoppers

Product specifications

Need a quote or a custom part?

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