I have a dumb waiter in my apartment with a metal door approximately 2ft x 1.5ft, 1" thick but hollow, it appears to be made of 1/16" steel. The door is sligtly beat up, minor dents but nothing major. I want to replace the lock and hinges, but also want to restore the door and remove/cover the dents. The door is painted, so I plan to strip it first; it has no rust on it.
Once the door is stripped, cleaned, and sanded, what should I use to fill in dents and level the surface? bondo, fiberglass, etc?
Best Answer
On bare metal, as long as the dents are very minor, I would skim coat the surface with bondo and use a large sanding block to sand the surface flat. Be sure to do a fine grit sanding after primer and it should come out looking good. If there are dents that will require the bondo to me more than 3/16" at deep any point, you will need to correct those (pull them out) first.