Textured ceiling repair
This ceiling has no peeling areas. But it had only about half the required number of nails when installed in 1968. It was pulled down about 1/4", evident by inspection in the attic. So I used the T-Jak to push the drywall up against the bottom chord of the trusses and used the proper number of screws to hold the ceiling. Now I need to conceal those screws. I fear rust if latex paint is used directly on the screw head. My plan is to mix perlite granules with some coating and just cover each screw to conceal it. Your suggestions, especially alternatives.