Unfortunately, this winter my rear bumper started rusting...a lot!
I'm not quite sure why, but my guess is that the cold temperature we experience up here (-40 degrees Celsius sometimes) cause microcracks in the powder coat. Water gets underneath the coating, steel starts rusting and coating starts to flake off. The water jug holder is definitely the worst. I used a flapper wheel to remove the rust on the bumper and a power washer on the jug holder. I then did a light coat of flat black paint, which blends in seamlessly and some JB Weld as a filler (instead of bondo). Once it sets, i'll sand it smooth and paint with Rustoleum Textured Black (which according to Hefty matches perfectly with their powder coat).
Any of you experience serious rusting of your bumpers? I almost wonder if the the flat textured powder coat is more susceptible because my front bumper has zero sign of rust and it is has more of a gloss finish.
I'm not quite sure why, but my guess is that the cold temperature we experience up here (-40 degrees Celsius sometimes) cause microcracks in the powder coat. Water gets underneath the coating, steel starts rusting and coating starts to flake off. The water jug holder is definitely the worst. I used a flapper wheel to remove the rust on the bumper and a power washer on the jug holder. I then did a light coat of flat black paint, which blends in seamlessly and some JB Weld as a filler (instead of bondo). Once it sets, i'll sand it smooth and paint with Rustoleum Textured Black (which according to Hefty matches perfectly with their powder coat).
Any of you experience serious rusting of your bumpers? I almost wonder if the the flat textured powder coat is more susceptible because my front bumper has zero sign of rust and it is has more of a gloss finish.