Winsor & Newton Ox Gall Liquid is 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.
Winsor & Newton Ox Gall Liquid is 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.





