Hi Minn,
Actually it doesn't say. It just says Photochemically Reactive. Keep out of Reach of Children (all in bold letters). Either way I don't think its a problem. The helicopter is out of the sun during the day, and I paint at night. Plus the stuff dries quick. Anyway once I'm done filling, priming, and sanding, its going to be covered by a "fantastic" paint job. Below is what I'm striving for. I know its not the heli forum