Watercolor Mediums

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Adhesives, Binders, and Gum Arabic

Gum arabic, the binder used in traditional watercolors and gouache, is a natural gum derived from the acacia tree of sub-Saharan Africa. It is completely non-toxic as well as edible, and its major use is in the food and cosmetics industries./nIt serves as an ideal binder for watercolors because it dissolves so easily in water, yet dries to form a thin layer that binds pigment to a paper surface. Add additional gum arabic to watercolors to increase their transparency and gloss, while extending drying time.

Blending Mediums

Granulation and Special Effects

Iridescent Mediums

Priming and Surface Preparation

Textures and Aqua Pasto Effects

Wetting Agents and Oxgall

Wetting Agents are substances that reduce the surface tension of water. They help watercolor paints to spread and blend more easily, to penetrate the surface of the paper and its sizing. Watercolor paints contain wetting agents to increase working time and prevent them from drying out./n/nOxgall, extracted from the gall bladders of oxen as a byproduct of meat production, is the traditional wetting agent used by watercolor painters. Modern synthetic wetting agents are also available.