Liquitex Heavy Body Professional Artist Acrylic Color previously referred to as High Viscosity Acrylic Color has an exceptionally smooth thick and buttery consistency Because it s so thick it retains crisp brush strokes and palette knife marks making it perfect for impasto mixed media collage and printmaking applications Heavy Body Acrylic Color combines excellent handling and blending characteristics with increased open working time Its high pigment load produces rich brilliant permanent color Water soluble when wet it is flexible non-cracking non-yellowing and water resistant when dry