CAR-REP® 2K Epoxy Color Top Coat with Wise 2K Technology, Easy Application, High Coverage, Jet Black High-Gloss, 11oz Aerosol Can

when painting a motorcycle fuel tank: if prepped, is it possible to paint over existing coatings (i.e.: 60s Honda black paint?) — or is sanding req?

are other colors and finishes available ?

Can I add another coat after paint has dried?

When will the jet black high-gloss be available in the u.s.?