Dynalon Extra Large Polygonal Magnetic Stir Bars

Extra Large Polygonal Stirring Bars, PTFE, heavy duty for stirring large volumes of liquids on large magnetic stirrers. Dynalon magnetic stir bars feature ALNICO V magnetic cores which are one of the most powerful permanent magnet alloys available. These large magnetic stir bars should not be stored in a random mass or dropped on a hard surface, especially steel. Stir bars should be stored in pairs to maintain magnetic strength. In general, PTFE thickness accounts for 18% of magnetic stir bar diameter.