Description
Closure without seal PP28, white, autoclavable, is a laboratory screw closure for high-volume PP28 bottle sealing needs. Supplied as a bulk pack of 2000 pieces, it supports efficient stocking of white autoclavable caps for routine laboratory bottle work. The PP28 thread format matches common laboratory bottle necks used with glass, PET and HDPE containers in standard lab workflows. This white autoclavable closure without seal from manufacturer Labbox is intended where a plain PP28 screw cap is preferred rather than a sealed insert design. The pack has a net weight of 8,230 kg, reflecting the large unit count for central stores, production support or multi-bench laboratories. Clear white colouring helps maintain a uniform appearance across bottle fleets. Suitable for laboratories and technical facilities that require bulk quantities of autoclavable PP28 white closures without seal for everyday sample, reagent and process bottle applications.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
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Questions about Screw cap PP28 with security seal, white, autoclavable, 2000 pcs
What is this article?
Screw cap PP28 with security seal, white, autoclavable, 2000 pcs is the article on this page. Luminix Health distributes Labbox 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.

