Description
Screw cap, LDPE, brown, GL 28 is a low-density polyethylene laboratory closure for bottles and vessels with a GL 28 thread, finished in brown for light-related protection needs. Made from polyethylen niedrige Dichte (LDPE), the brown pigmentation supports shielding against UV radiation and makes the cap suitable for light-sensitive liquids that require reduced exposure during storage or short-term handling. The GL 28 thread geometry enables secure mating with corresponding laboratory bottles used for photosensitive reagents, indicator solutions and other materials that benefit from a darker closure environment. Supplied as a single piece, this brown LDPE screw cap from manufacturer lab-o-plastix complements standard GL-thread glassware and plasticware systems in analytical, pharmaceutical-support and research laboratories. The combination of flexible LDPE material and brown colouring addresses practical organisation of light-sensitive samples within screw-closure inventories. It fits collections of screw caps and original-seal accessories where both thread compatibility and UV-oriented protection are relevant selection criteria for everyday laboratory workflows involving sensitive liquid contents.
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 28
- UV protection: Shields against UV radiation
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Questions about Screw cap, LDPE, amber colour, GL 28
What is this article?
Screw cap, LDPE, amber colour, GL 28 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.