Watercolor painters also learn to apply paint to paper and then, when the paint has dried to the right point, brush along the edge of the paint with a flat, mop or sky brush charged with a moderate amount of clear water.
https://en.wikipedia.org/wiki/Watercolor_painting
Paint that does not adhere to paper contains too much pigment or was made with too much water and not enough gum arabic. Paint that dries rock hard, cracks or flakes, or has a glossy or bronzed finish on the paper contains too much gum arabic or not enough glycerin.
http://www.handprint.com/HP/WCL/pigmt1.html
Professional or Artist Watercolors contain a full pigment load, suspended in a binder, generally natural gum arabic. Conventional watercolors are sold in moist form, in a tube, and are thinned and mixed on a dish or palette.
http://www.dickblick.com/categories/watercolors/
The material is presented in four sections: (1) the ingredients and recipes used to make watercolor paints, (2) the generic historical and modern pigments that provide the color in paints; (3) the manufacture of modern pigments; and (4) the manufacture of watercolor paints.
http://www.handprint.com/HP/WCL/pigmt1.html
In European painting since the 18th century, the binder of choice has been gum arabic, made from the solidified sap of thorny, shrubby acacia trees (species Acacia arabica or Acacia senegal, shown at right).
http://www.handprint.com/HP/WCL/pigmt1.html
Watercolor (American English) or watercolour (Commonwealth and Ireland), also aquarelle (French loanword), a diminutive of the Latin for water, is a painting method in which the paints are made of pigments suspended in a water-based solution. Watercolor refers to both the medium and the resulting artwork. The traditional and most common support— material to which the paint is applied—for watercolor paintings is paper. Other supports include papyrus, bark papers, plastics, vellum or leather, fabric, wood, and canvas.
https://en.wikipedia.org/wiki/Watercolor_painting
Wet in wet includes any application of paint or water to an area of the painting that is already wet with either paint or water. In general, wet in wet is one of the most distinctive features of watercolor painting and the technique that produces a striking painterly effect.
https://en.wikipedia.org/wiki/Watercolor_painting
It is worthwhile to try this recipe to see how much manual labor and fine tuning of ingredients is necessary to produce a decent watercolor paint. The main problem is that different pigments require different proportions of vehicle ingredients and different proportions of vehicle to pigment.
http://www.handprint.com/HP/WCL/pigmt1.html
Every paint is a mixture of microscopic pigment particles, which provide the paint color, mixed in a liquid paint vehicle that holds the pigment in suspension, allows it to be applied with a brush, then dries to bind it to the support (paper, board or canvas).
http://www.handprint.com/HP/WCL/pigmt1.html
Liquid Watercolors contain dyes as well as pigments, suspended in an aqueous medium. They are especially brilliant and transparent. Because they are moist and fluid, they are suited to thin washes and airbrush application as well as conventional brushwork.
http://www.dickblick.com/categories/watercolors/
what is in watercolor paint
Pigments are suspended in a water based solution in the watercolor paint. Pigments suspended in a water-based solution is in a watercolor paint.