The Auxiliary range includes a series of mediums, varnishes and thinners that are used to modify color characteristics, such as gloss, opacity or drying time. The Glaze Medium dilutes and delays color drying time. Mixed with Metallic Medium, colors take on a pearlescent and metallic effect. Diluted with Airbrush Thinner, colors can be used with an airbrush. Polyurethane varnishes offer great resistance to handling and include different finishes, from glossy to ultra matt.