Description
Weighting rings stabilise laboratory vessels so flasks stay upright and submerged in water baths. They are made of lead with a tough blue vinyl coating that shields vessel necks and work surfaces from abrasion. Lay the ring around the neck of the flask to stop floating or tipping during heating or incubation. The open C-form gives flexible fit and works with vessels that have side connections. Very good chemical and thermal resistance matches typical lab environments. Each piece is packed individually for easy issue and storage. Supplied from manufacturer Marienfeld, these weighting rings support routine water-bath, tempering and wet-lab tasks where controlled vessel position matters. The vinyl overcoat combines lasting surface protection with the density needed for dependable weighting performance day after day.
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 protection
- Resistance: Very good chemical and thermal resistance
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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.

