Bondo is a brand of body filler, but it's also the generic term ... So it's back to the mixing board for a bit more. Even though you want to get the amount right the first time, it's better ...

Spread the filler down the mixing board in an S-shaped curve. Then scoop it up and fold it over. Repeat until the filler has a consistent color. Don't mix body filler on a scrap piece of cardboard.

Other supplies you'll need are 50-, 80-, 180-, 220-, and 400-grit sandpaper, body filler, mixing board and spreaders for the filler, and spot putty. Once you've determined that you can repair the ...