You likely wont have good long-term results.
It's something that I experimented with for several years. Many different prep methods as well as product from rattle can to $250/gal clear, including the EW stuff. Meticulously prepped and cleared bare metal would show rust underneath within weeks of just sitting on a shelf in the shop.
Paint needs a good surface to "bite" and adhere. It's why you have to use an etch/epoxy primer on bare metal. You don't just spray base/clear over bare metal. You could sand/scuff the bare metal and clear and maybe get decent adhesion, but not a good appearance.
What I did find to hold up was to prep the bare metal in a metal etching solution prior to clear. It gives the clear something to stick to without altering the appearance of the metal.
In my "experiment" pictured below, both were blasted with new media, never touched by bare hands. Immediately etched with Sherwin Williams etch product W4K288. Distributor clamp was cleared with EW Diamond Clear, washer coated with Boeshield. They were left outside and saw very harsh weather conditions during that time.
After one month:
After 5 months in which they saw snow, ice, storms, vast temp changes, etc. (one of the most odd seasons, even considering the crazy Ark weather.)
