Art Masking Fluid is used to mask areas of the paper making them resistant to watercolours.
Sections treated with Art Masking Fluid must be allowed to dry before overpainting. Once dry these areas remain protected and cannot be penetrated by colour.
Unlike Permanent Masking Medium, which is inter-mixable with water colours, Art Masking Fluid works by direct application to the paper. It can be applied to white paper or previously coloured areas.
As it is latex based, Art Masking Fluid is best applied with an old brush or better still a quill or nib as the latex will peel off these. Brushes should be washed immediately in warm soapy water.
Art Masking Fluid should not be diluted before use or used on damp or soft sized papers. Art Masking Fluid should be removed as soon as possible once the painted area is dry. The dry fluid can be removed by rubbing with an eraser.