Steel Door Repair: Repair a Dented Steel Door

July 01, 11:17 AM [GMT -5]

I've done this before and it works, but doesn't work... In areas where you have freezing weather, the repair patch will show through after your first winter if you use canned spray primer or even a good roll on primer (like Kilz). I've done both, I live in Chicago, and the repair patches are now a couple years old. The ones on the outside of the doors are noticeable while the ones on the inside are not. On the other hand, my neighbor is an auto-body guy. He made the same repair, but sprayed the door with a high quality primer that he uses on cars. He also sprayed the door with paint he uses for cars. His repair never came through. And a final story... My grandfather made this repair on a door (which is where I got the idea from). He lives in Arizona and his repair patch looks great. I'm no expert, but I'm guessing that the extreme cold/hot weather cycles has something to do with why my repairs didn't last.