Posted by Sherman in Idaho [108.162.245.23] on Tuesday, June 14, 2016 at 13:11:11 :
In Reply to: The sign paint posted by Mark in Wa. [108.162.245.32] on Tuesday, June 14, 2016 at 12:20:23 :
Looks like "1-shot" is a brand of PPG now. According to the MSDS, it appears that they still have a lead chromate (chrome yellow), but no lead in any other colors. That's good because the safe "unleaded" yellow fades pretty fast. Barium chromate is okay for light yellows, but for that "school bus yellow" you really need the lead. Rather than fading over time, it actually gets deeper.