The original line of GOLDEN Artist Acrylics is known for its exceptionally smooth, thick buttery consistency. It contains the largest assortment of unique pure pigments in a 100% acrylic emulsion vehicle available to the professional artist. These colours offer excellent permanency and lightfastness. There are no fillers, extenders, opacifiers, toners, or dyes added.Each Heavy Body colour is formulated differently depending on the nature of the pigment. Colours that tolerate higher pigment "loads" dry to a more opaque, matte finish. Colours that are more reactive and do not accept high pigment loading dry to a glossy finish and tend to be more transparent. Heavy Body colours contain no additives, such as matting agents, therefore the gloss of each colour will be different.