Acrylic

Acrylic paint is a fast-drying paint containing pigment suspension in acrylic polymer emulsion. Acrylic paints are water soluble, but become water-resistant when dry. Depending on how much the paint is diluted with water or modified with acrylic gels, media, or pastes, the finished acrylic painting can resemble a watercolor or an oil painting, or have its own unique characteristics not attainable with other media. (wikipedia.org)