Here you can see that the Four E's Scientific Laboratory Vortex Mixer works great for large bottles up to 200 mL in volume. This is a bottle of Vallejo Surface Primer that separated over time. For best results for most artistic mediums, you'll want to shake well.
The advantage of a vortex mixer for model paints is that you don't need to open the bottle or container. You can operate the vortex mixer device with a single hand and continue working quickly. No agitator balls, stir bars, or mixing sticks needed.
This particular vortex mixer is easy to use, quiet, and fast! For more details, check out the review article: tangibleday.com/vortex-model-...
The Four E's Scientific Vortex Mixer for model paints: amzn.to/2JyMofX​
Labgenius mini vortex mixer for hobbyists: amzn.to/34Za0SF​
Best budget vortex mixer: amzn.to/395e1pV
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