Description
Premium closure GL 45 is a laboratory bottle closure with a diameter of 51 mm and a height of 26 mm, designed for GL 45 threaded vessels widely used in chemical and life-science laboratories. It is manufactured from TpCH260, a material similar to PFA, combining chemical resistance with thermal stability for demanding lab environments. An integrated PTFE-coated silicone seal provides a dependable sealing interface that helps protect sample integrity during storage and handling. The premium construction suits reagent bottles and media containers where inert contact surfaces are preferred. Supplied in packs of 5 pieces, these closures from manufacturer Hirschmann offer a practical option for equipping or replacing caps on GL 45 laboratory bottles. TpCH260 body material together with the PTFE-coated silicone gasket addresses needs for robust sealing performance in routine and specialized work. The 51 mm diameter and 26 mm height align with standard GL 45 bottle necks, enabling straightforward interchangeability within existing glassware fleets used for solvents, buffers, and other laboratory liquids.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 5 pc(s)
- Storage temperature: +5–+40 °C
- Thread: GL 45
- Diameter: 51 mm
- Height: 26 mm
- Material: TpCH260 (similar to PFA)
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Questions about PREMIUM SCREW CAP, GL 45, WITH PTFE COATED SEAL
What is this article?
PREMIUM SCREW CAP, GL 45, WITH PTFE COATED SEAL is the article on this page. Luminix Health distributes Hirschmann 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.