Plastic Stirring Rods

Polypropylene handles HF and most common acids and bases well, but always check a chemical compatibility chart for unusual solvents before committing to plastic over glass.

As with a glass rod, choose a length that reaches the bottom of your usual beaker or container comfortably, with enough length left to hold above the rim.

Polypropylene softens at high heat, so it is not suited to hot solutions the way glass is. Stick to glass rods for any mixing step involving elevated temperatures.

Since plastic rods rarely break, one rod per station lasts far longer than glass, so it is worth stocking fewer, higher-quality rods rather than a large disposable stack.

Plastic stirring rods are priced similarly to glass rods, mainly by length. Browse this collection to compare current pricing.

Mainly for chemical compatibility with hydrofluoric acid and similar reagents that attack glass, or for safety around younger students and in field settings where breakage is a real risk.

Not recommended. Polypropylene softens well below the temperatures glass can handle, so use a glass rod whenever a solution is heated.

Rinse under water immediately after use, the same as glass. Polypropylene does not stain or etch the way glass sometimes does with certain reagents.

Yes, resting a plastic rod against a beaker lip guides a pour just as effectively as glass, since the technique relies on the rod's smooth rounded surface rather than the material itself.