Burnt Umbers from Cathay Industries are naturally occurring Iron Oxides with deep brownish black color. As with all Iron Oxides provided by Cathay, UB39 is permanent and light fast with heat resistance and excellent chemical resistance.

Burnt Umbers are also an excellent value in brown pigments and popular in the stain industry due to their transparency. They are often used to produce brown colored furniture finishes, such as Walnut. They are also used extensively by the colorant houses because of their natural tones.