Benzimidazolone Orange HSL (Variant)

PO36:1

Alternate Name

Benzimidazolone Scarlet

Pigment Description

Quite possibly a variant of PO36 used by Michael Harding. See PO36 for the same health cautions which would apply.

Resources

PO36:1 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com

Information about PO36 from Bruce MacEvoy, Handprint Guide to Watercolors,

Stats

Lightfastness

Varies

For PO36, a related pigment, depending on the manufacturer this color may be excellent or it may be only moderate. If you are using this color it may be advisable to do your own lightfastness tests. Many varieties have a slight falloff in tints (7’s on the BWS), but some show solid high marks (all 8’s).

Toxicity

Previously thought to be in the category of Low Concern (with notes to avoid dust and spray), new research suggests this may metabolize to cause a serious health condition.

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

Dry Pigments listing PO36:1

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