Ultramarine Blue Gamblin FastMatte

FastMatte colours are compatible with Gamblin painting mediums and our traditional oil colours. For thinning FastMatte colours, we recommend a 50/50 mixture of Galkyd and Gamsol. This mixture, used in moderation, thins colours without slowing dry-times or significantly increasing gloss. Gamvar Picture Varnish may be applied to saturate colours and impart a uniform satin or gloss surface to your finished work.
The 24-hour dry time, matte surface and compatibility make FastMatte colours ideal for underpainting.