Fluorescent Orange
Fluorescent colors are not lightfast, so bear that in mind when you choose to use them. For information about fluorescent colors, see Golden's The Science and Seduction of Luminescent Colors.
"The A and AX pigments are thermoplastic fluorescent pigments "where resistance to strong solvents is not needed" -DayGlo
CAMEO Materials Database: Conservation & Art Materials Encyclopedia Online, Museum of Fine Arts Boston. (Accessed June 2025). Fluorescent Paint https://cameo.mfa.org/wiki/Fluorescent_paint. Museum of Fine Arts Boston
Ambrose, Trevor (2023, September 24). ASTM Lightfastness Testing for Oil Paints https://justpaint.org/astm-lightfastness-testing-for-oil-paints/. Just Paint, Golden Artist Colors.
Poor
While we do not have data on this exact pigment, in general the lightfastness of fluorescent pigments is poor. This article on fluorescent colors with some recent testing by Golden has some pictures showing how they react with light exposure.
Thought to be in the category of lesser concern Source: Cameo
Treat all pigments and paints with studio safety protocols.
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