Coolant overflow bottle bracket (take 2)

This is the bracket that hold the bottle for the coolant overflow in the car.

I think the part was galvanized.... so I thought I would try Rustoleum's "Cold Galvanizing Compound". Well it looked really good!

Until you touched it, OK dragged a fingernail across it, the "paint" does not stick even after the metal had been etched! Well some web searches turned up that this is what it does, its not really a paint, but a "compound".... Not sure what it's good for, but it's not good for car parts.... So, the part sat around for a long time because it was depressing to look at it and think of all the wasted time. Finally after the old "paint" was  taken off using lots of paint stripper and a metal brush, I coated it with NAPA self-etching primer and Rustoleum Bright Coat "Metallic Finish" "7715 Aluminum". Looks good and should be more durable.