This reliable favourite is a general purpose semi gloss medium which speeds drying, improves flow and reduces brush stroke retention.Liquins are a family of alkyd mediums which are made by treating naturally derived oil, like linseed oil with alcohol and acid. Alkyds speed the drying rate of conventional oil colour by about 50%, from 2 to 12 days to 1 to 5 days (touch dry). Paintings will still need to dry 6 to 12 months depending on the colour and thickness of the paint layer before varnishing. Alkyds can do all the things that conventional drying oils such as linseed oil, stand oil and others do like blending, glazing and altering consistency except they dry at a faster rate. This makes them a great choice for artists under time constraints. Halves the drying time of conventional oil colour (touch dry in 1-6 days depending on colour & film thickness). Resists yellowing. Not suitable as a varnish or final coat.