<span> A </span>binder<span> is the agent in paint that serves -- on the molecular level -- to make the paint stick to the support (that is, the canvas, board, or </span>what<span> have you). For example, the </span>binder<span> used in watercolor and gouache is gum arabic. ... Acrylic paint uses acrylic as its </span>binder<span>. It pencil drawings yppu use mineral water as a binder. </span>
