ATOM RAF WWII Early Colors SetATOM RAF WWII Early Colors Set New and exclusive collection of acrylic paints designed for painting Royal Air Force aircraft. This set resolves the issues of choosing the correct accurate colours for your models, saving valuable time. This water based formula behaves like a lacquer and has been optimised for maximum performance with both brush and airbrush. We recommended adding 30 % of Cleaner & Thinner (ATOM 20500) or Cleaner & Thinner Retarder