Candy colors do not require a black base coat....candies are tinted clear coats. How would the the chromed finish of the legs show through the gold candy if there was a black base coat? The only time a black base is used is if there is a chromed paint applied to the legs.
For the powder coating, the shop did use a primer (and lots of it apparently because of the off-gassing), but I'm not sure what kind. I left that expertise up to them.
For the powder coating, the shop did use a primer (and lots of it apparently because of the off-gassing), but I'm not sure what kind. I left that expertise up to them.