Description
Poly stopper PE NS 45/40 is a laboratory plastic stopper intended for standard ground joints of size NS 45/40. Fabricated from high-density polyethylene (HDPE), the stopper provides a practical sealing solution for glassware that uses the corresponding NS taper. The NS 45/40 joint dimension ensures direct compatibility with matching ground-glass apparatus commonly employed in chemical, analytical and preparative work. Supplied as a single piece, this poly stopper belongs to the product groups of standard ground-joint stoppers and plastic stoppers. High-density polyethylene offers a lightweight yet robust alternative to glass stoppers where plastic construction is preferred. The item is available from manufacturer IDL GmbH and supports routine laboratory sealing tasks on flasks, vessels and other apparatus fitted with NS 45/40 joints. Its simple design allows straightforward insertion and removal while maintaining a reliable fit for everyday laboratory handling and storage operations involving standard taper glassware.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Poly stopper
- Material: High-density polyethylene (HDPE)
- Joint size: NS 45/40
- Technical Information Sheet:
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Questions about PE stopper, for standard ground joint ST 45/40
What is this article?
PE stopper, for standard ground joint ST 45/40 is the article on this page. Luminix Health distributes IDL GmbH for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
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 Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone 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.