Winsor & Newton Water Colour Permanent Masking Medium – 75 ML

Winsor & Newton Permanent Masking Medium is a non-removable, water-repellent liquid wax designed to protect selected areas of paper from watercolour washes. Once dry, it permanently resists subsequent layers, making it ideal for preserving highlights and fine details.

Key Features:

• Permanent, non-removable masking medium
• Repels water and overlaid watercolour washes when dry
• Ideal for detailed and precise masking work
• Can be applied on white paper or over dried washes
• Can be mixed directly with watercolours
• Keeps washes workable while wet
• Dries quickly (hair dryer can be used to speed drying)
• Brushes clean easily with warm soapy water before drying