Judging on things like galvanized nails, it's definitely a possibility. Speaking of.... I stepped on one of them damn things abount a month ago and it punctured the bottom of my foot! Hurt like hell.
Anyway.... I tell ya what, we'll run an expirment today. I just happen to have a bunch of white plastic spoons so I'll spray one up and see what happens!
OH WAIT, I found this rather amusing. The side of the can lists applications: "Automotive, Damaged galvanized surfaces, Refineries, Highway maintenance, Fences, Nuclear facilities, Gutters, Transmission towers, Bridges, Structural steel, Marine, Wrought iron, Power plants, Farm equipment." lmao That's a hell of a spread and imagine some dude standing there spray painting the side of a nuclear reactor some thing.