Typically the method used by these roving bodywork specialists involves four basic procedures.
Fil dents in sheet metal.
It s available at home centers and hardware stores.
Apply the superfil with a squeegee let it dry overnight sand it smooth and touch up the area with paint.
The easiest way to fill in the dents is with a premixed patching or glazing compound designed for steel doors.
Drilling numerous holes in and all around a dent slide hammering the riddled metal out plastering.
Sand the primer using a straight back and forth motion.
Insert a sheet metal screw select a sheet metal screw slightly wider than the hole you ve drilled.
The surface can be marred at any step along the way and the cost of fixing or replacing the product can put a big dent in your profit margin.
Small cracks are a common problem on sheet metal airplanes.
It causes them to slow down and pack closer together making the metal contract.
Even up into the early 80s the factories still used lead solder on bodies like this 1978 chevy camaro z28.
If you sand away too much primer and you can see metal again you ll have to reprime and resand.
Chilling the metal such as with freon or dry ice does the opposite of exciting the molecules of the metal.
Place a washer on the screw.
When you begin to see the old paint show through the primer you ve gone far enough.
Bondo filler tends to shrink after being applied.
For a heavy duty fix use a two part auto body filler.
Up until the 1950s the standard way to smooth panels after dent repair was with lead body solder.
Again the exact size doesn t matter as long as the washer won t.
Fill a spray bottle with clean water and spray the repair area and the sandpaper.
Dents in sheet metal are the result of the metal being stretched by something impacting with it.
Some old school traditionalists still prefer metal solder based body fillers and that is why eastwood sells lead free body solder.