Maybe not too deep just enough so you can cut off any nails otherwise the rust will come through you could prime the concrete but.
Repair nail holes in concrete wall.
Albert recommends spackling or caulk or elmer s wood glue and you can use your finger to work it in and then level it.
Also useful to have on hand.
You need a material that adheres and doesn t crack.
Clean and stabilize the plaster around the hole first.
I often see poorly done repairs of this type and.
Some people use white toothpaste.
With some careful layering and sanding your wall will look like it never had a hole in it at all.
Dap patch stick spackling nail hole and crack filler.
You probably need to chisel out concrete to take out any metal.
To prepare the surface lightly swipe a fine 220 grit sanding block over the nail hole to sand away ridges.
Learn how you can repair a nail hole in drywall and leave the wall showing no trace that it was ever there.
Work in a circular motion over drywall.