Winsor & Newton Liquin Original Medium
Liquin is a durable, non-yellowing medium for thinning oil and alkyd colors, and speeding drying time. This reliable favorite (formerly known simply as "Liquin") is a general-purpose low gloss medium that improves flow and transparency. It mixes easily with the brush or knife, smoothes brushwork, and is also suitable for textured oil techniques.
Liquin Original approximately halves the drying time of oil colors, resulting in a drying time of anywhere from one to five days, depending on climate, colors used, and film weight. It is not recommended as a varnish or final coat.