Oil painting mediums can be used to alter the consistency, transparency, finish or drying time of the paint. They also extend the paint, meaning a little paint can go much further.

There are many different types. The general or most commonly used oil mediums include Linseed Oil, Liquin and Walnut Oil. You can also get burnt plate oils, stand oils, blending and glazing mediums, impasto and cold wax mediums, solvent-free gels, turpentine and damar varnishes.