Pigfolio

PBr6 Brown Iron Oxide (Mars Brown)

Synthetic iron oxide.

9 tubes from 3 of 24 paint lines contain PBr6. 5 are made from PBr6 alone, which is the closest match when you're switching brands.

Toxicity
No toxic metal Not one of the toxic-metal pigments. As with any paint, keep it out of your mouth and don't sand or spray it.
Drying
Medium

About PBr6

History

A synthetic brown iron oxide, made like the other Mars colors as a uniform alternative to natural umbers.

In mixes

Opaque, permanent and dependable. It behaves much like an umber in mixes.

Drying speed is typical for linseed oil; tubes ground in safflower or poppy oil, or with driers added, will differ. These are general notes on the pigment, not on any one brand.

Purest PBr6, by brand

The best single-pigment PBr6 tube from each line, ranked: artists' grade first, then lightfastness, then how firmly the pigment listing is confirmed. Ties are listed alphabetically.

  1. Langridge Mars BrownSeries 1 · LF I · Opaque Opaque
  2. Michael Harding Raw UmberSeries 1 · LF I · Semi-transparent Semi-transparent
  3. Williamsburg Dutch Brown (Transparent)Series 4 · LF I · Semi-transparent Semi-transparent

Not sold here by: W&N Artists', Holbein, Grumbacher, M. Graham, Gamblin, Old Holland, Rembrandt, Schmincke Mussini, W&N Winton, Georgian, Da Vinci, Van Gogh, Cobra, Art Creation, Lukas 1862, W&N Griffin, Art Spectrum, Blockx, Maimeri Puro, Vasari, W&N Artisan.

Made from PBr6 alone

Mars BrownLangridgePBr6Series 1OpaqueLF IBurnt UmberMichael Harding 126PBr6Series 1TransparentLF IRaw UmberMichael Harding 121PBr6Series 1Semi-transparentLF IRed UmberMichael Harding 124PBr6Series 1TransparentLF IDutch Brown (Transparent)Williamsburg 6001494PBr6Series 4Semi-transparentLF I

Mixtures that contain PBr6

Cold Brown OxideLangridgePBr6PBk11Series 1OpaqueLF INeutral GreyMichael Harding 136PW4PW6PBk6PBr6Series 1OpaqueLF IPermanent Sap GreenMichael Harding 217PG7PBr6Series 2Semi-opaqueLF IVan Dyke BrownWilliamsburg 6001680PBk9PBr6Series 1HueSemi-opaqueLF I

Brands: Langridge, Michael Harding, Williamsburg.