I am working with a pair of steel entry doors that are in need of a
facelift. There are chips and strips of paint missing (from ripping
tape off) and old screw holes from old weatherstripping.

I am planning to bondo and sand the hold, but for the paint chips and
strips should I use bondo to "skim coat" or sand down the entire door to
remove the paint and start again?

I can't remove the doors as they are exterior entrance doors

Any suggestions would be appreciated

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PV