How to keep oil paints from drying on palette

This video shows how to keep paints fresh and active inside your box palette for a longer duration of time irrespective of the effects of temperature or atmosphere.
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Materials:
Plastic folder.
Clove oil: Any genuine clove oil would do.
Cotton.
Oil paints are from www.kokuyocaml...

[@KaustavMukherjeeFineArt]

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