PTFE-coated magnetic stir bars are magnetic stirring elements used in laboratories to automatically mix liquid solutions inside glassware such as beakers, flasks, or bottles, using a magnetic stirrer.
The PTFE (Teflon) coating gives them special properties that make them ideal for chemical and biological applications.
Advantages of PTFE Coating
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High chemical resistance – prevents the magnet from reacting with acids, bases, or organic solvents.
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Heat resistance – suitable for operation at high temperatures (typically up to 250°C).
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Non-stick and easy to clean – allows repeated use without residue buildup.
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Corrosion and oxidation resistance – significantly extends product lifespan.
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Safe for sterile work – can be sterilized in an autoclave.