Winsor & Newton Art Masking Fluid, Watercolor Medium, 75 mL Bottle

Winsor & Newton Art Masking Fluid is a must-have watercolor medium for artists who want crisp edges, protected highlights, and confident layering. This easy-to-use liquid resist lets you mask out areas of your paper before applying washes, so preserved sections stay brilliantly white or retain underlying color. The fluid flows smoothly from a brush or applicator and dries quickly to a flexible film that peels away cleanly once your paint is dry. Ideal for watercolor, gouache, and ink, it’s especially helpful for fine details, sparkling light effects, and complex compositions where control matters. Whether you’re building landscapes, botanical studies, or mixed-media work, this medium gives you reliable protection and professional-level precision.

• Protects highlights: Masks paper areas to preserve whites and underlying color during washes.
• Reliable clean removal: Dries to a flexible film that lifts off smoothly once the paint is dry.
• Easy application: Flows well from brushes or applicators for controlled detail work.
• Versatile medium: Works beautifully with watercolor, gouache, and ink techniques.
• Ideal for precision: Perfect for fine details, sparkling light effects, textural contrast, and layered compositions.
• Made by Winsor & Newton: A trusted brand known for premium artist materials.