<span>Acrylic On Plaster- </span>Uses a fast-drying, synthetic, water soluble paint that can be used on most surfaces. Made from color pigments and a synthetic plastic binder, acrylic paint looks like oil and can be used in a variety of painting techniques. <span>It is better to clean up Folk-Art paints while they are wet, but dried paint can be cleaned up easily as well. Yes, you can use Folk-Art paint on </span>plaster<span>. However, because </span>plaster<span> is very porous and sometimes dusty, you should to first seal the piece with a clear </span>acrylic matte spray sealer.