Description
PTFE watch glass, 50 mm is a laboratory cover dish intended for protecting the contents of beakers during heating, evaporation, mixing or short-term storage. Isostatically moulded from pure PTFE, the dish is FDA-compliant, completely chemically inert and fully resistant to aggressive acids, bases and organic solvents. It remains dimensionally stable and usable at temperatures up to 280 °C, making it suitable for a broad range of thermal laboratory procedures. The 50 mm diameter format is well matched to standard beakers and preparative vessels where a lightweight, non-contaminating cover is required. Offered as a single piece with a net weight of 0,050 kg, this watch glass from manufacturer Labbox combines a smooth non-stick surface with excellent cleanability and long service life. Unlike conventional glass covers it is shatterproof, non-catalytic and free from leaching, supporting sensitive syntheses and sample-preparation steps. The pure PTFE construction ensures consistent performance across repeated autoclave or oven cycles while preserving the integrity of the covered medium. Ideal for routine chemical work, teaching laboratories and quality-control environments that demand inert, high-temperature-capable covers.
This article is part of Watch glasses & crystallising dishes, in Dishes, crucibles & porcelain.
Key features
- Pack size: 1 pc
- Material: pure PTFE
- Diameter: 50 mm
- Max. temperature: 280 °C
- EAN: 8434868087934
- GTIN: 08434868087934
- Technical Information Sheet:
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Questions about Watch glass dish, PTFE, 50 mm
What is this article?
Watch glass dish, PTFE, 50 mm is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Watch glasses & crystallising dishes, inside Dishes, crucibles & porcelain, in Labware.
A watch glass is a shallow curved cover or a dish for drying a few grams. A crystallising dish is the flatter, wider dish a solution is left in while a solid comes out. Neither is volumetric. Diameter is the specification.
A dish is an open vessel for drying, evaporating or holding a solid. Porcelain and glazed ceramic take a higher temperature than borosilicate glass, which is why a crucible, not a beaker, goes into a furnace. A watch glass covers, or holds a small amount for drying. A mortar is for grinding. The temperature and the chemical, not the shape alone, choose the material. Laboratory ware of this family is listed under ISO laboratory ware.
Which category should I open next?
The category is Dishes, crucibles & porcelain. The sub-category is Watch glasses & crystallising dishes. The catalogue is Labware.
Shelves beside this one are Crucibles, Trays, bowls & tubs, Mortars & pestles, Evaporating dishes and Dishes (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.