PTFE-coated paddle stirrers are laboratory tools designed for use with overhead stirrers to mix highly corrosive chemicals or sensitive samples. The Polytetrafluoroethylene (PTFE) coating provides exceptional chemical resistance, a non-stick surface, and high-temperature stability (typically up to +250°C).
Common Types and Designs
Paddle / Leaf Stirrers: Feature a flat, often rectangular blade suitable for low-to-medium speed mixing of flowable liquids in large vessels.
Centrifugal (Foldable) Paddles: These paddles stay closed to fit through narrow flask necks and open up once they begin spinning, making them ideal for round-bottom flasks.
Anchor Stirrers: Shaped like an anchor to sweep the bottom and sides of a vessel, preventing sedimentation and ensuring heat transfer in viscous fluids…
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