Benzimidazolone Orange HGL

PO60

Alternate Name

Hostaperm Orange

Pigment Description

This is a hard to find pigment which is used mostly in industrial applications, described as a reddish orange. Slow drying but excellent lightfastness. Monona Rossol mentions that it may metabolize to an aniline (may also cause health impacts such as cancer— so please do your own research). See her writing for more information. As a bright clear orange which is nearly in the transparent category, its abilities in glazing have been noted.

Resources

PO60 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com

General information about this class of pigments from Handprint,

Rossol, Monona. The Artist's Complete Health and Safety Guide. New York, NY : Allworth Press, 2001. The book is rather dated, updated information is available from her website.

Stats

Lightfastness

Excellent

This pigment is not rated by the ASTM, but it has solid highest marks on the blue wool scale tests.

Transparency

Transparent

Toxicity

Traditionally thought of in the Least Concern category, however it may be similar to anilines, some of which can cause cancer.

See Monona Rossol's research available upon request here for more information. Treat all pigments and paints with studio safety protocols.

Dry Time

Slow

Chemical Name

monoazo, acetoacetyl, HGL, benzimidazolone

Dry Pigments listing PO60

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