Description
Cork stopper with top diameter 85 mm, bottom diameter 80 mm and length 30 mm is a tapered laboratory stopper for sealing bottles, flasks and similar vessels. Made from natural cork, it offers a compressible, resilient fit that seats securely in glass and other laboratory neck openings while remaining easy to insert and remove. The conical geometry—85 mm at the upper face tapering to 80 mm at the lower face over a 30 mm body—supports stable closure for routine sample handling, temporary vessel sealing and general bench work in chemical, biological and teaching laboratories. Each piece has a net weight of 0,038 kg and is supplied in a pack of 10 pc(s). These cork stoppers from manufacturer Witeg form part of the standard stopper range used where a natural sealing material is preferred alongside rubber, silicone or cellulose alternatives. Clear dimensional specification helps match the stopper to the intended apparatus neck size, supporting consistent selection for everyday laboratory sealing tasks without unnecessary complexity.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Material: Cork
- Top diameter: 85 mm
- Bottom diameter: 80 mm
- Length: 30 mm
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Questions about Cork stopper Ø top 85mm Ø bottom 80mm length 30mm
What is this article?
Cork stopper Ø top 85mm Ø bottom 80mm length 30mm is the article on this page. Luminix Health distributes Witeg 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.