Description
neoChoice silicone sponge stoppers white 20 x 8 x 12 mm are lightweight laboratory stoppers that combine the chemical and thermal properties of silicone with a soft, sponge-like structure. Measuring 20 mm in height with a lower diameter of 8 mm and an upper diameter of 12 mm, they fit round necks and can be drilled as easily as conventional cork stoppers. Temperature resistance spans -60 °C to +200 °C; the stoppers are autoclavable, odourless and non-toxic. Supplied by manufacturer neolab - Labor in packs of 10 pieces, these white silicone sponge stoppers provide a practical, reusable closure option for flasks, tubes and other round-neck vessels in general laboratory work. Their low weight and silicone performance characteristics make them convenient for routine sealing tasks where thermal stability and chemical resistance are required without the bulk of denser stopper materials.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pcs
- Material: Silicone sponge, white
- Dimensions: 20 x 8 x 12 mm (H x bottom Ø x top Ø)
- Temperature range: -60 °C to +200 °C
- Properties: Autoclavable, odourless, non-toxic
- EAN: 4058072002787
- Technical Information Sheet:
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Questions about neoChoice Silikon-Schwammstopfen weiß 20 x 8 x 12 mm, 10 St./Pack
What is this article?
neoChoice Silikon-Schwammstopfen weiß 20 x 8 x 12 mm, 10 St./Pack is the article on this page. Luminix Health distributes neolab 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.