Beschrijving
Screw caps GL 45 are laboratory bottle closures engineered for the widely used GL 45 thread standard. Fabricated from red polybutylene terephthalate (PBT), they tolerate temperatures up to 180 °C and deliver a robust, dimensionally stable seal for reagent, media, and sample bottles. The distinctive red finish supports fast identification on crowded benches and in shared storage areas. Packed in quantities of 10 pieces and offered by manufacturer Marienfeld, these caps suit laboratories that maintain standardised GL 45 bottle fleets for preparation, storage, and transport of liquids. PBT material properties support everyday chemical handling and thermal loads within the stated maximum temperature, while the GL 45 geometry ensures compatibility with common laboratory bottle necks. Suitable for analytical chemistry, life-science workflows, quality-control laboratories, and teaching environments where dependable screw closures are essential. Consistent manufacturing supports repeatable fit and sealing behaviour across matching bottle systems.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Thread: GL 45
- Material: Polybutylene terephthalate (PBT)
- Colour: Red
- Maximum temperature: 180 °C
- EAN: 4250317314024
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Questions about Screw caps GL 45,
What is this article?
Screw caps GL 45, is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labmateriaal.
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 Labmateriaal.
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.
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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.