^^Ok. I still would think the paint would have to dry for the rest of the day and maybe not be able to be painted on again for another day or two. Even if it would be the next day, my example would work, just be switched around a little bit.
^I do realize they don't use normal paint. I would also assume they aren't painting 10 pieces, waiting for it to dry, painting another 10, etc. I assumed they couldn't get more than that done in a day. I assumed that because painting individual pieces takes more time than painting an assembled coaster. You're having to move painted pieces out, new pieces in, etc. which takes more time. Then, they wouldn't be wasting time the next day waiting for it to dry because they would be painting another set of pieces. As I said earlier, painting an assembled coaster takes a lot less time because they just move right a long the track and supports. Cobra also had coats of paint on it already. New track pieces don't. That requires a couple additional coats then to help further protect the steel. You would have at least one base coat, one mid color coat, and a top coat. I would think there would be a couple additional even, so a total of at least five coats of paint. You know how B&M is, so OCD.
I'm sorry for putting forth my ideas of how long it takes to paint a coaster. I won't do it again.