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2. Gouache - Wikipedia

   en.wikipedia.org/wiki/Gouache

   Gouache (/ ɡ u ˈ ɑː ʃ, ɡ w ɑː ʃ /; French:), body color, [a] or opaque watercolor is a water-medium paint consisting of natural pigment, water, a binding agent (usually gum arabic or dextrin), [1] and sometimes additional inert material. Gouache is designed to be opaque. Gouache has a long history, having been used for at least twelve ...

3. Gum arabic - Wikipedia

   en.wikipedia.org/wiki/Gum_arabic

   Gum arabic is used as a binder for watercolor painting because it dissolves easily in water. Pigment of any color is suspended within the acacia gum in varying amounts, resulting in watercolor paint. Water acts as a vehicle or a diluent to thin the watercolor paint and helps to transfer the paint to a surface such as paper .

4. Gum printing - Wikipedia

   en.wikipedia.org/wiki/Gum_printing

   Gum printing is a way of making photographic reproductions without the use of silver halides. The process uses salts of dichromate in common with a number of other related processes such as sun printing. Gum prints tend to be multi-layered images sometimes combined with other alternative process printing methods such as cyanotype and ...

5. Wash (visual arts) - Wikipedia

   en.wikipedia.org/wiki/Wash_(visual_arts)

   However, when gum arabic watercolor washes are applied to a highly absorbent surface, such as paper, the effects are long lasting. The wash technique can be achieved by doing the following: With water-based media such as inks, acrylic paints, tempera paints or watercolor paints, a wet brush should be dipped into a pool of very wet and diluted ...

6. Watercolor painting - Wikipedia

   en.wikipedia.org/wiki/Watercolor_painting

   Watercolor paint consists of four principal ingredients: [61] a pigment; gum arabic [62] [63] as a binder to hold the pigment in suspension; additives like glycerin, ox gall, [64] honey, and preservatives to alter the viscosity, hiding, durability or color of the pigment and vehicle mixture; and, evaporating water, as a solvent used to thin or ...

7. Hand-colouring of photographs - Wikipedia

   en.wikipedia.org/wiki/Hand-colouring_of_photographs

   Watercolour paint used in photographic hand-colouring consists of four ingredients: pigments (natural or synthetic), a binder (traditionally arabic gum), additives to improve plasticity (such as glycerine), and a solvent to dilute the paint (i.e. water) that evaporates when the paint dries. The paint is typically applied to prints using a soft ...

8. Light in painting - Wikipedia

   en.wikipedia.org/wiki/Light_in_painting

   Watercolor is a technique made with transparent pigments diluted in water, with binders such as gum arabic or honey, using the white of the paper itself. Known since ancient Egypt, it has been a technique used throughout the ages, although with more intensity during the 18th and 19th centuries. [ 41 ]

9. Printmaking - Wikipedia

   en.wikipedia.org/wiki/Printmaking

   Gum arabic, a water-soluble substance, is then applied, sealing the surface of the stone not covered with the drawing medium. The stone is wetted, with water staying only on the surface not covered in grease-based residue of the drawing; the stone is then 'rolled up', meaning oil ink is applied with a roller covering the entire surface; since ...