Winsor & newton colourless art masking fluid 75ml is a colourless liquid for masking areas of work needing protection when colour
...Winsor & Newton artisan fast drying medium 75ml is a very popular medium as it speeds the drying of oil colour by about 50%, allowing further layers to be applied more quickly. It thins the colour & increases gloss & transparency & when painting in layers, Winsor & Newton artisan fast drying medium can substitute linseed oil & be combined with water and/or Thinner to maintain fat over lean.