Description
Solid PTFE ground joint stopper NS 29/32 is a laboratory Normschliff stopper for sealing standard taper joints of size NS 29/32. Manufactured as a solid piece from polytetrafluoroethylene (PTFE), it provides a chemically inert plastic closure for matching conical ground joints on flasks, condensers, adapters and related glassware. The solid PTFE construction seats firmly in the NS 29/32 joint and avoids a hollow core, supporting consistent fit during everyday laboratory use. Pack size is 1 pc; net weight is 0,061 kg and gross weight is likewise 0,061 kg. This plastic ground joint stopper is offered by manufacturer Witeg within the ranges of standard ground joint stoppers and plastic stoppers. PTFE is chosen where a non-glass, chemically resistant stopper is required for NS 29/32 joints in synthesis, distillation and general wet-chemistry workflows. Country of origin is Germany (Baden-Württemberg). The article is intended as a durable solid PTFE stopper for closing European-standard NS 29/32 laboratory glassware joints according to the stated material, joint size and solid design.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Solid PTFE ground joint stopper
- Joint size: NS 29/32
- Material: Polytetrafluoroethylene (PTFE)
- Design: Solid
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Questions about ST-stoppers ST29/32 PTFE solid
What is this article?
ST-stoppers ST29/32 PTFE solid is the article on this page. Luminix Health distributes Witeg 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.