The top colour is Carbon Black which is a very strong pigment and is also very neutral as we can observe when it is used to mix greys or thinned out as a glaze. Though not as black as Ivory Black, Mars Black has approximately three times the tinting strength and is very opaque. Mars black is more ideal for an underpainting because it dries a bit faster. It is opaque rather than transparent, and dries quickly. Winsor & Newton Black … Mars Black is opaque, therefore it is ideal for direct painting especially where more coverage and opaque layers are needed. It is the most transparent of the blacks and appears quite blue. Cool in its masstone and strong, Mars Black … It is considered the most non-toxic black … Ivory Black … It has opposite characteristics to the carbon blacks. The other type of black is an iron black which is known as Mars Black. Both Ivory Black and Lamp Black are considered a type of “carbon black” because of how the pigment is made. Transparency. It is common to have both types of black … That’s why we are considering these three brands for the best black acrylic paint brand of 2020. Mars Black … We were told never to use black … Mars Black: Slightly warm in its tint, this leanest (more matte) black dries more quickly than Ivory Black. Which cast me back to the start of my paint journey using watercolour. Lamp Black is also opaque, allowing the deepest blackest black coverage. Comparing Carbon Black to Mars Black. Ivory Black, Lamp Black, Carbon Black, Bone Black and Mars Black. Mars black (or Black Iron Oxide) Mars Black is made using a synthetic and inorganic pigment.