Description
Standard stopper silicone rubber, Ø 29×35 mm, height 30 mm, is a translucent silicone laboratory stopper designed for secure closure of vessels and glassware. The material is chemically and biologically neutral and food-safe according to BfR recommendation XV and FDA § 177.2600. With a lower diameter of 29 mm, an upper diameter of 35 mm and a height of 30 mm, the tapered profile seats firmly in matching openings. Continuous temperature resistance covers −60 °C to +200 °C, with short-term exposure up to +230 °C, supporting use from cold environments through heated laboratory steps. The stopper is sterilizable and toxicologically sound for everyday lab practice. Offered as one piece with a net weight of 0,027 kg from manufacturer Bürkle, it is well suited to chemistry, biotechnology and food-contact applications that need a resilient, non-reactive seal. Elastic silicone construction aids repeated handling while preserving sealing performance on standard necks and joints.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Silicone rubber
- Bottom diameter: 29 mm
- Top diameter: 35 mm
- Height: 30 mm
- EAN: 4067722026837
- Technical Information Sheet:
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Questions about Standard bung silicone, Ø 29x35 mm, height 30 mm
What is this article?
Standard bung silicone, Ø 29x35 mm, height 30 mm is the article on this page. Luminix Health distributes Bürkle 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.