PY 213 – Hostaperm Yellow H5G

The main application of this pigment is in the field of plastic coloring and car paints

Manufacturer/ product code:  Kremer / 23660
Chemical Description:  quinoxalinedione monoazo
Color: yellow
Color Index: PY 213
Date:  —

PY 213 – Hostaperm Yellow H5G is a synthetic organic pigment belonging to the monoazo family, widely recognized for its bright, slightly reddish yellow hue, high chromatic purity, and excellent lightfastness. Developed for both artistic and industrial applications, it offers strong color intensity, durable performance, and reliable mixing behavior, making it a versatile choice in paints, coatings, inks, and plastics.

Chemically, PY 213 is based on a monoazo structure in which a diazonium salt is coupled with a substituted aromatic amine. This configuration produces a stable chromophore that resists fading under light exposure, as well as chemical and thermal degradation. Its molecular stability ensures compatibility with other pigments and binders, preserving both color and performance in complex formulations.

In practical applications, Hostaperm Yellow H5G exhibits high tinting strength and semi-opaque to opaque behavior depending on particle size and formulation. It mixes cleanly with other yellows, oranges, and reds, producing a wide range of warm hues while maintaining clarity and brightness. Its transparency allows for glazing and layering in oil, acrylic, and watercolor media, enabling nuanced color effects.

From a conservation standpoint, PY 213 is chemically inert and highly resistant to light-induced fading, maintaining chromatic purity over long periods. Its presence in historical or modern works indicates the use of stable, high-performance azo yellows in fine art or industrial contexts.