Watercolor Mediums & Fluids

Holbein Gum Arabic is an artist grade medium which will, when mixed with watercolors, enhance gloss and transparency. Mixing with opaque colors, like gouache and posters colors, will also increase their transparency.  60ml (2 ounce) bottle.

Winsor & Newton Art Masking Fluid is a removeable liquid mask for paper. A pale yellow color so it easy to see where it has been used, it acts as a resist (prevents the paint adhering to the paper) and dries to a removable, water-impervious film...

Winsor & Newton Gum Arabic increases the brilliance, gloss and transparency of watercolors. Gum Arabic is the main binder in watercolor—using this medium slows the drying time, allows color blending for longer and reduces staining...

Grafix Incredible White Mask is a high quality latex which assures an easily removable, durable mask. It is quick drying, non-staining, and tintable. For use with all artist papers, board, wood, leather, glass, metal, ceramics and rubber stamps. 2oz...

Daniel Smith Masking Fluid is easy to use with the bottle applicator, the included 5 fine-point applicator tips or with a disposable brush. The medium makes an impervious barrier to protect watercolor paper and preserve sections of white by blocking...

W&N Watercolor Blending Medium slows drying and maximizes the working time of your watercolors, allowing you to achieve smoother blends. Use the Blending Medium to work different colors into each other or to show a single color in all its intensity...

Winsor & Newton's Watercolor Granulation Medium is a low-viscosity formula that increases the granulation of color. It gives a natural mottled appearance to colors that usually give a smooth wash (e.g. Winsor Blue), or enhancing the effect of...

Winsor & Newton's Watercolor Iridescent Medium adds shine and luster to your artwork. Pearlescent particles add a metallic effect to watercolor and is particularly effective when mixed with transparent colors applied over dark backgrounds. Available...