Heavy Body Acrylics are known for their exceptionally smooth, buttery consistency. The Heavy Body palette includes a large assortment of unique pure pigments in a 100% acrylic emulsion available to professional artists. These colours offer excellent permanency and lightfastness. There are no fillers, extenders, opacifiers, toners or dyes added. Features: all Golden products are compatible to slow drying time, use Golden Retarder To dilute Golden paints, use water or mediums suited for acrylics Tool maintenance: clean brushes with soapy water Surfaces: most surfaces, including canvas, cardboard, wood and metal Drying time: about 15 minutes for a thin coat, and about three hours for a thick coat (about ¾ in.)