Galeria Flow Formula Acrylic Colour has been carefully formulated to produce strong and vibrant colours, with a smooth, free-flowing consistency which maintains its body and retains brush marks.. Galeria is fully compatible with the complete range of Winsor & Newton Artists' Acrylic Colours and mediums and can be easily diluted with water.. Also Galeria is extremely versatile, and is suitable for a variety of techniques. It can be used on numerous surfaces but is not recommended for use on shiny, greasy surfaces such as glass, unprimed metal or surfaces painted with oil colours.. As with all acrylics, equipment should be cleaned with water immediately after use.. . Here are the new colours that were introduced by Winsor & Newton last year and they have proved to be extremely popular.. . . . .