Dynalon Octagonal Magnetic Stir Bars, Blue

Dynalon® Octagonal PTFE blue magnetic stir bars feature ALNICO V magnetic cores which are one of the most powerful permanent magnet alloys available. 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 stir bar diameter.