What is the simplest, most economical, fairly durable method of clearcoating steel?
I have several steel sculptures I've created for my living room, I've flapdisc'd them all so they're quite shiny and reflective, but I need to clearcoat them so they won't rust.
I've tried using Krylon crystal clearcoat spray finish, but it's not very durable, I can put pressure on the finish with my fingernail and when I scrape over it, the clearcoat separates from the steel (looks like a very shallow air bubble). If I press harder I can chip the clearcoat off.
I prepared the surface of the metal by cleaning with acetone and/or paint thinner solvent. Is there something else I should be doing to prepare the surface?
I just don't think the Kyrlon is bonding to the surface of the steel. Is there a canned product that would work better, either brushed on, dipped or sprayed on using an airbrush? Can you do a clear powdercoat? I assume it's not very economical.
Thanks for your help.