Description
Silicone stoppers with turn-up lip, type 19.4, are flexible laboratory plugs for sealing vessels, flasks and related glassware in routine laboratory workflows. The turn-up lip assists a secure position on the vessel rim and makes fitting and removal simple during sample preparation, interim storage or transfer. Silicone material yields a resilient, form-fitting closure suitable for bottles, tubes and other open laboratory containers. Supplied as 20 pc(s) with a combined weight of 0,110 kg, the pack suits benches that rely on a consistent stopper size in moderate quantities. Type 19.4 identifies this size within the product line, enabling selection against the corresponding vessel opening. These plugs from manufacturer Saint-Gobain align with standard labware needs for stoppers, clamps and sealing consumables. They support everyday vessel-closing tasks in research, teaching and analytical environments where practical, easy-to-handle silicone stoppers are preferred for general laboratory use.
This article belongs on Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 20 pc(s)
- Material: Silicone
- Design: Stoppers with turn-up lip
- Type: 19,4
- Weight: 0,110 kg
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Questions about Silicone stoppers with turn-up lip, type 19.4, 20 unit(s)
What is this article?
Silicone stoppers with turn-up lip, type 19.4, 20 unit(s) is the article on this page. Luminix Health distributes Saint-Gobain 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.