This versatile varnish is used to bring back the original paint quality of dry or dull oil.Retouching Varnish is reduced with solvents and is much thinner than final top coat varnish. It can be used however,as a preliminary varnish as soon as the oil paint is touch dry,since oil paint can continue to dry out through the film.This may be useful for varnishing before an exhibition.Retouching Varnish can be removed with Turpentine or White Spirit prior to final varnishing,or it can be left underneath