Description
Weighting rings stabilise flasks and other laboratory vessels by resting around the neck, adding mass so containers stay in place. When used in a water bath they reduce the risk of floating or tipping, supporting reliable positioning during heating, incubation and related procedures. Each ring is made of lead and finished with a tough blue vinyl coating that protects vessel surfaces and benchtops from direct metal contact. The coating provides very good chemical and thermal resistance under ordinary laboratory bath conditions. Thanks to the open C-shape, the ring can be fitted flexibly to suit different neck sizes and remains suitable for vessels that carry side arms or lateral connections. Rings are supplied individually packed for straightforward storage and handling. From manufacturer Marienfeld, these weighting rings are a useful accessory wherever flasks must remain submerged and upright in aqueous baths or similar setups. The open geometry allows rapid application and removal without disturbing connected tubing, making them convenient for routine wet-chemistry and sample-preparation workflows.
This article is part of Stationery, books & lab notebooks, in Tools & accessories.
Key features
- Pack size: 1 pc
- Material: lead with blue vinyl coating
- Shape: open C-form
- Coating: durable vinyl, surface-protecting
- Resistance: very good chemical and thermal resistance
Recently viewed
You may also like
Questions about Lead rings
What is this article?
Lead rings is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Stationery, books & lab notebooks, inside Tools & accessories, in Labware.
A laboratory notebook is the bound record of what was done, in an order that cannot be quietly rewritten. Loose paper is not that record. The page has to survive the bench, including a splash.
The small tools of the bench are what the hand actually holds: a spatula for a powder, forceps for an object that must stay clean, a brush for a narrow neck, a desiccator when a dried sample must not take up water again. None of these reads a measurement. They keep the measurement possible. The apparatus around them is listed under ISO laboratory apparatus.
Which category should I open next?
The category is Tools & accessories. The sub-category is Stationery, books & lab notebooks. The catalogue is Labware.
Shelves beside this one are Spatulas & spoons, Other lab tools & accessories, Lab furniture, trolleys & storage, Tweezers & forceps, Scissors, scalpels & dissecting instruments, Weighing boats, dishes & paper, Desiccators & desiccant, Grease, boiling stones & sealants, Timers, stopwatches & calculators, Brushes & cleaning tools, Stirring rods, spreaders & glass tools, Cutting & sealing tools and Gas handling & burners accessories.
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.