Description
Cork stopper of 1a quality with low-pore structure and dimensions 36 x 32 x 27 mm is a tapered laboratory sealing component made from natural cork. The upper diameter of 36 mm tapers to a lower diameter of 32 mm over a height of 27 mm, enabling secure fitment in matching glassware necks and vessel openings. Low-pore cork construction reduces liquid uptake and supports reliable closure performance during routine handling, storage, or transport of samples. Supplied as a single piece, the stopper is suited to flasks, bottles, and tubes commonly used in chemical, analytical, and life-science workflows. Natural cork offers a combination of compressibility and resilience that facilitates insertion and removal while maintaining an effective seal against moisture and airborne contaminants. This stopper from manufacturer Hecht belongs to the standard range of laboratory cork closures and is selected for applications where a breathable yet tight seal is preferred over synthetic alternatives. The 1a quality grade denotes carefully sorted material with reduced surface irregularities, supporting consistent laboratory use across teaching, research, and quality-control environments.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Cork
- Quality: 1a, low-pore
- Upper diameter: 36 mm
- Lower diameter: 32 mm
- Height: 27 mm
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Questions about Cork stoppers, first-class quality, low-porous Ø mm H 36 x 32 x 27
What is this article?
Cork stoppers, first-class quality, low-porous Ø mm H 36 x 32 x 27 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. Delivery across Europe, two to five days when in stock. 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.