Michael Harding Refined Gum Turpentine is used to thin oil paint and speed up the drying time. It is ideal for underpainting and dries to a slightly matt finish.
This refined turpentine is a colourless solvent that has been distilled from pine sap.
You can also use this oil medium to clean your brushes. Available in a 100ml bottle.
Use in a well-ventilated space and store in a cool dark place.