25Pcs PTFE Magnetic Stir Bar Stirrer Mixer Spinbar Choose By Style & Lengths
Round, With Ring, Egg Shaped
Quantity: up to 25 

This PTFE magnetic stir bar is designed for efficient and consistent liquid mixing when used with a magnetic stir plate. It is widely used in school laboratories, research facilities, industrial applications, food processing, biochemistry, and agricultural testing.

The stir bar features a durable PTFE (polytetrafluoroethylene) outer coating that is chemically inert, making it safe for use with aggressive chemicals, strong acids, alkalis, and organic solvents. Its smooth, low-friction surface ensures stable rotation and quiet operation while minimizing wear on glassware.

Key Features:

  • Multiple Sizes Available: Various diameter × length options to fit different containers and volumes

  • Premium PTFE Material: Non-reactive, non-stick, and resistant to most chemicals and solvents

  • High Temperature Resistance: Suitable for continuous use up to 250 °C (482 °F)

  • Excellent Chemical Resistance: Withstands strong acids, bases, water, and organic solvents

  • Low Friction Design: PTFE provides one of the lowest coefficients of friction among solid materials

  • Wide Temperature Range: Maintains mechanical strength and flexibility down to -196 °C

  • Non-Stick Surface: Resists buildup and contamination for easy cleaning

  • Long Service Life: Resistant to aging, weathering, and prolonged exposure to harsh environments

  • Non-Toxic & Safe: Physiologically inert material commonly used in medical and laboratory applications

Ideal for precise and reliable stirring, this magnetic stir bar is a dependable choice for both professional laboratories and educational settings.