Linseed oil is a transparent binder that dries naturally and can be applied in thin layers.
Glazing mediums are painting mediums, made from a mixture of oil, resin and solvent which change the viscosity of oil colors and enhance the drying time. If painters used only oil to thin oil colors for glazing, paintings dried too slowly and yellowed too much over time. Adding only resin makes oil paintings to brittle. Solvent is added to control the viscosity. Stand oil , a vacuum heat-bodied linseed oil, is longer than linseed oil, leaves no brush strokes and makes an enamel like finish.