Description
Silicone stopper 44–36 mm Ø, 40 mm h is a tapered laboratory sealing component made from silicone. It presents an upper diameter of 44 mm that narrows to 36 mm at the lower end, with a uniform height of 40 mm, allowing secure seating in matching vessel necks. The flexible silicone body forms a reliable closure for flasks, bottles and other laboratory containers used in routine chemical and analytical work. Supplied as a single piece, this stopper from manufacturer Hecht belongs to the established range of silicone norm stoppers employed for temporary or intermediate sealing tasks. Its tapered profile supports straightforward insertion and removal while maintaining contact around the opening. Laboratories use such stoppers when an elastic, dimensionally consistent plug is required for sample handling, reagent storage or simple reaction setups. The 40 mm height supplies adequate engagement depth for stable positioning during mixing, transfer or short-term holding steps. Dimensional accuracy of the 44–36 mm taper helps ensure compatibility with common glassware openings found in research and quality-control environments.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Silicone
- Upper diameter: 44 mm
- Lower diameter: 36 mm
- Height: 40 mm
- Design: Tapered stopper
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Questions about Silicone stoppers mm 44 - 36 Ø 40 h
What is this article?
Silicone stoppers mm 44 - 36 Ø 40 h is the article on this page. Luminix Health distributes Hecht 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?
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.