Oil Medium Liquin Original 75ml is a great favorite from Winsor & Newton. The primary area of use for this medium is to increase the gloss, speed up drying and make the oil paint more fluid which reduces visible brush strokes. The color also becomes more transparent and allows for fine color transitions and detail work.
Liquin Original cuts the drying time in half, so it makes your oil paint dry much faster (dry surface layer within 1-6 days).
Liquin Original counteracts yellowing but is not suitable as a topcoat.