Winsor & Newton Watercolour Medium  Ox Gall 75mls

Winsor & Newton Watercolour Medium Ox Gall 75mls

Winsor & Newton

£6.80 £8.45 Save £1.65

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A wetting agent used to improve flow when mixed directly with water colours. It can also be used on very hard sized papers to reduce surface tension.
  • Add 3-4 drops per cup of water.
  • 75 ml bottle