"al" wrote in message
ups.com...
Just replaced some exterior soffit and fascia. What's best for
covering nail heads and filling the holes before painting? Thanks.

If you've used galv. nails and hammered them flush, you don't need any
filler - just paint with universal primer, then exterior acrylic. The heads
will barely show.
If used common nails or uncoated nails, practically any filler will
eventually pop out or dislodge, once the metal begins rusting and
expanding, making a worse outcome than skipping the filler altogether.
I also find it handy, if later repairs are needed, to *not* have filled
countersunk nails, so one can see the attachment points, and use pry bar at
correct point, with less damage to wood.
Roger