Somewhat warmer than Carbon Black, made with black iron oxide. (Series 1) The first acrylic colors offered by GOLDEN, Heavy Body paints are known for their exceptionally smooth, buttery consistency. The Heavy Body palette includes the largest assortment of unique pure pigments in a 100% acrylic emulsion available to professional artists. These colors offer excellent permanency and lightfastness. There are no fillers, extenders, opacifiers, toners, or dyes added. Each Heavy Body color formula reflects the qualities of its pigment. Colors that tolerate a higher pigment load dry to a more opaque, matte finish. Colors that are more reactive and do not allow as much pigment loading tend to have a glossier, more transparent, finish. Because Heavy Body colors contain no matting agents, the gloss of each color will be different. Characteristics:Thick paints that retain texture of brushstrokes and tool marksNo fillers, extenders or dyes Rich, vibrant colors for clean color mixing Technical Detail Opacity / Transparency Opaque Lightfastness rating Munsell Notation Listing Hue:0 Value:0 Chroma:0.7 Gloss Average 52.79 Viscosity Range 18000- 22000 CPS CIE L*a*b* Values L*25.47 a*0.51 b*0.16 Tint Strength 67.81 Pigment Detail PBk11 CI number:77499 Common name:Mars Black Classification:Synthetic Inorganic Chemical Description:Synthetic Black Iron Oxide