Octagonal Stir Bar, PTFE
• Our PTFE octagonal stirring bars feature… ALNICO V magnetic cores which are one of the most powerful permanent magnet alloys available.
• Octagonal 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.