Winsor & Newton, Permanent Masking Medium, 75ml

This medium is used to mask specific areas of paper, making them resistant to water. It can also be mixed with water colours and is ideal for isolating areas of fine detail. Unlike Art Masking Fluid, Permanent Masking Medium is not removable. Features:

• Excellent for detail
• When applied wet can be mixed with tint
• Non-removable
• Apply directly to paper
• Allow to dry completely before painting