D133 D833 Burnt Umber/Terre d’Ombre Brûlée - PBr7 Mars Brown (Iron oxide)

Holbein Acryla Gouache is an opaque and highly pigmented paint that dries to a velvety-matte finish. In terms of handling and mixing, it behaves like traditional Gum Arabic gouache, but because it is made with an acrylic resin binder, it is water-resistant once dry, facilitating layering, as fresh paint layers can be laid down without the risk of bleed-through from the lower layer. Acryla Gouache dries quickly and with minimal colour-shift; what you see wet is what you get once the paint has dried.

Series: A

Lightfast: ***

Pigment Name: PBr7 Mars Brown

Pigment Type: n/a

Chemical Name: Iron oxide

Properties: Mars Brown has similar general properties to the pure red oxides, and it is often a mix of synthetic forms of oxides such as PY42, PR101, and PBk11. Its tinting strength is low, and it dries quickly. Hues vary based on manufacturer.

Permanence: Mars Brown has excellent permanence and lightfastness, with outstanding resistance to chemicals, heat, and weather.

Toxicity: Mars Brown is not considered toxic, although care should be taken not to breathe its dust.

History: Unknown

Alternate Names: Brown Iron Oxide.