Chrome Painted Fiberglass Bumpers!!

How well does this stand up to the elements? Will it dull in a matter of months?

Its just basecoat. Once you clearcoat over it it will last as long as you color finish. Of course it is a front bumper so if you spot rock chips you will ned to touchup those spots accordingly. After the 90 cure cycle for the clearcoat you can keep a fresh coat of wax on it.