Makes the brush stroke run slightly Increases the gloss and transparency No influence on drying time of the paint Increases the durability of the paint film 250ml bottle Cobra Glazing Medium in a 250ml bottle is for use with water mixable oil color and increases the sheen and durability of paint. It is composed of vegetable oils, synthetic resins and water. Glazing medium aids in better paint flow, the amount added affects the transparency of the color. This medium is very fat and should be added in the last few layers of a painting. Yellows slightly and can be thinned with water.