Medium: All paints begin with the same
essential powdered sources, know as pigments.
To allow the dry powders to be spread easily and to adhere to
the surface they are put on, a chemical is added.
Officially the chemical used as a binder for the pigments is the
medium. Example: gum-arabic is used as a binder
in watercolor paint is the medium.
When asked which medium they use painters usually respond with the general term
such as watercolor, oil etc.
Painting mediums include:
Watercolor, Oil, Pastel, Acrylic, Tempera, Ink, Graphite, Mixed Media-(all or some listed)
Collage, Encaustic-(any paint with wax used to bind it to surface).
The Painters Ground
The surfaces painted on is referred to as ground. The following is a list of the most
common grounds for each medium.
Watercolor - acid free cotton papers, watercolor board
Oil- canvas, watercolor board, canvas papers, walls, treated board.
Acrylic- see watercolor and Oil
Pastel- soft drawing paper with textured surface.
Collage - any flat surface.