Description
Rotilabo® stoppers made of silicone rubber are tapered laboratory plugs for sealing vessels, flasks and related labware openings. This size offers a bottom diameter of 56 mm, a top diameter of 65 mm and a height of 45 mm, giving a conical profile suited to matching apertures in routine laboratory work. Silicone rubber provides the flexibility needed for insertion and removal while supporting dependable closure of glass and other laboratory containers. Supplied as a single piece with a weight of 0,009 kg, the stopper is a lightweight consumable for everyday sealing tasks. These Rotilabo® stoppers from manufacturer ROTH SELECTION form part of a dimensional series of silicone rubber plugs used across laboratory glass, vessels and consumables. The defined bottom and top diameters help achieve a snug seat without additional fittings. Laboratories that standardise on silicone rubber stoppers can select this grade when vessel openings fall within the stated dimensional range, ensuring consistent handling alongside other Rotilabo® stopper sizes in the same material family.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Laboratory stopper
- Material: Silicone rubber
- Bottom diameter: 56 mm
- Top diameter: 65 mm
- Height: 45 mm
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Questions about Rotilabo®-stoppers made of silic. rubber, Ø bottom 56 mm, Ø top 65 mm, H 45 mm
What is this article?
Rotilabo®-stoppers made of silic. rubber, Ø bottom 56 mm, Ø top 65 mm, H 45 mm is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Ground-joint glass stoppers, Lids & seals and Closures (other).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

