Permanent Masking Medium is used to mask specific areas of the paper making them resistant to water.
This medium can also be mixed with water colours and is ideal for isolating areas of fine detail. Sections which have been treated with Permanent Masking Medium must be allowed to dry before overpainting. A hair dryer can be used to speed the drying. Once dry these areas remain protected and cannot be penetrated by further washes.
Permanent Masking Medium can be applied directly to white paper, to dried washes on the paper or mixed with water colours first. All water colour washes mixed with Permanent Masking Medium remain open and workable whilst the wash is still wet. Once dry, the area becomes isolated.
Brushes should be washed in warm water and soap before using other colours.
How does Permanent Masking Medium differ from Art Masking Fluid?
• Permanent Masking Medium is not removable
• Permanent Masking Medium can be added to colour
• Brushes are easier to clean
• Art Masking Fluid is recommended for larger areas of masking and is faster drying whilst Permanent Masking Medium is recommended for fine detail and expressive effects within the painting.