Description
Silicone stopper, reversible, d=19,4 mm is a laboratory sealing stopper made from chemically inert, high-quality natural silicone. It is autoclavable and offers strong chemical and temperature resistance from −60 °C to +170 °C. The reversible design with flip flange allows the stopper to be used from either side and supports optional sealing of the hose wall from both inside and outside. Flexible body material reseals reliably and provides a secure fit even on imperfectly finished rims, helping to prevent unintentional opening. Suitable for routine vessel and tubing closure in laboratory workflows, these stoppers combine chemical inertness with practical dual-sided usability. Supplied in a pack of 10 pieces from manufacturer ISOLAB Laborgeräte, they are intended for applications that require dependable, reusable silicone sealing across common glassware and hose connections without compromising chemical compatibility or thermal performance in everyday lab use.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Diameter: 19,4 mm
- Material: natural silicone
- Design: reversible with flip flange
- Temperature range: −60 °C to +170 °C
- EAN: 4250362632890
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Questions about stopper - turn over flange - silicone - 19,4 mm diameter
What is this article?
stopper - turn over flange - silicone - 19,4 mm diameter is the article on this page. Luminix Health distributes ISOLAB 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.