A non-removable, transparent liquid mask, the Winsor & Newton Watercolor Permanent Masking Medium is excellent for detail.
It can be applied directly onto the paper, or mixed first with watercolors. Ensure that the fluid is thoroughly dry before overpainting. Wash brushes in warm, soapy water ...
™ Winsor & Newton is a trademark.
60 ml | 2 oz |
75 ml | 2.5 oz |
250 ml | 8.5 oz |