Benzimidazolone

	Benzimidazolone
	Color Index	Pigment Yellow 120,151,154,175,181,194 & Pigment Orange 36,60,62

Structure

These yellow pigments are mainly monoazo in structure. They possess a benzimidazolone group on the molecule, which is in effect a cyclical carbonamide group.

Properties

Properties of benzimidazolone
Property	Benzimidazolone
Solvent resistance	good (more than other monoazo yellow pigments)
Chemical resistance	good
Light fastness	good to excellent
Heat Stability	good
Light fastness and Weatherability	excellent

Color
These pigments range in shade from a green shade yellow through to orange.

Particle size
Benzimidazolone exists in several grades with different particle size. The higher the particle size, the better the light fastness.

Uses

Benzimidazolone pigments are used in demanding applications such as automotive finishes and powder coatings.

Price

Benzimidazolone pigments are typically more economic than other high-quality pigments in this section of the spectrum, although they are more expensive than other monoazo pigments.