A rival to oil paint, colored pigment is held in a clear plastic solution. It provides bright, long-lasting color and has the advantage of drying more quickly than oils. Acrylic paint is also water-soluble whereas oil paints need hydrocarbon chemicals to break down. The use of acrylic paint was popularized in the 1950s and 60s by Roy Lichtenstein, Andy Warhol, David Hockney, and Robert Motherwell.