Description
Screw cap, LDPE, brown, GL 18 is a laboratory screw closure made from low-density polyethylene (LDPE) in brown colour for bottles with a GL 18 thread. The brown finish helps protect contents from UV radiation and is therefore suitable for light-sensitive liquids that require reduced exposure during storage or handling. With a GL 18 neck finish, the cap matches common laboratory bottles used for reagents, intermediates and samples in analytical, research and quality-control settings. Supplied as one piece, it offers a practical polymer sealing option where light protection and a secure screw fit are both required. This brown LDPE screw cap from manufacturer lab-o-plastix supports workflows involving photosensitive solutions, dyes, standards or other media that benefit from UV shielding at the bottle neck. It integrates readily into GL 18 bottle systems used for bench storage, sample transport within the laboratory and organised reagent management, providing a straightforward closure choice when light-sensitive materials must be kept under more protective conditions without changing the established bottle format.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Screw cap
- Material: Low-density polyethylene (LDPE)
- Colour: Brown
- Thread: GL 18
- Property: UV protection for light-sensitive liquids
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Questions about Screw cap, LDPE, amber colour, GL 18
What is this article?
Screw cap, LDPE, amber colour, GL 18 is the article on this page. Luminix Health distributes lab-o-plastix 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.