Description
neochrom® UltraBond screw caps ND24 closed unite a white polypropylene screw cap and a silicone natural/PTFE beige septum as one inseparable UltraBond unit, preventing the septum from being dislodged into the bottle. Caps use a 24-400 thread in a fully closed design without a centre hole, suited to storage and transport where needle access is not needed. The EPA-quality silicone/PTFE septum withstands −60 °C to +200 °C, measures 3,2 mm thick, and has a hardness of 45° Shore A; it is specified for single-injection use if later pierced. Bonded construction improves seal reliability and reduces handling errors in chromatography and environmental laboratories. Pack size is 100 pieces per pack for routine stocking. These neochrom® UltraBond closures from manufacturer neolab - Labor fit ND24 neck finishes used in sample preparation and archival sealing. Natural silicone with beige PTFE facing offers a practical balance of inertness and resealing behaviour for common laboratory matrices. Choose the closed UltraBond variant when a fixed septum and solid top are preferred over open-hole caps.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Brand: neochrom® UltraBond
- Material: white PP
- Thread: 24-400
- Design: closed
- EAN: 4058072037338
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Questions about neochrom® UltraBond Schraubkappen ND24 geschl., Silikon natur/PTFE beige, 100 St
What is this article?
neochrom® UltraBond Schraubkappen ND24 geschl., Silikon natur/PTFE beige, 100 St is the article on this page. Luminix Health distributes neolab for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
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 Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, 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.