“Oiling Out” is a term used to describe a method of applying a medium or oil to an oil painting whose paint has dried in an uneven sheen. Some pigments are matte in finish, others are glossy. This can make it hard to determine the True Tone of the colours on the painting when you want to add another layer or alter it in some way. Enter “oiling out”. This simply “wets” the surface of the oil painting in such a way that the entire area has the same sheen, making it easy to judge the tones and the