if you spray clearcoat diretly on bare metal, it will not adhere properly, and will explode within a year or two. it's a TOPCOAT, it has no corrsion protective properties.
instead, I used a new product that was previously only available in black.
it's Wurth Rust Gaurd Clear.
it's made to apply over rust, and kill it. similar to PUR 15 or whatever.
I reduced it 10%, then sprayed one pint on the jambs and exterior.
it took 3 hours just to flash off! nasty stuff!
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