This has been one of the most frustrating items in the restoration of my car. One bezel required three complete paintings before I was happy with it!
As you can see in the pic, the black covers the "lip" of the opening.
I spray painted mine with Motorcraft brand argent paint first. 3-4 light coats, 10-15 minutes apart, to avoid runs. Just spray the insides of the openings and don't worry about overspray. No masking needed for the first step. Google "motorcraft argent" for a source. I bought a can on Amazon a few months ago. I let it dry a couple of weeks, but I probably didn't have to wait that long.
Now comes the hard part. Go to an auto body supply store and buy a roll of 1/8" fine line tape. Don't cheap out here. Buy the best tape they have. Carefully apply the tape around the opening, just inside the "lip". Leave maybe a 1/16" gap down from the "lip". I used a single strip to avoid any joints where black paint could seep behind it. Be very careful in the corners as the tape will stretch and a gap will let some black paint in.
Now use normal 3/4" masking tape to apply 3" +/- pieces of paper to the fine line tape. I cut the strips from printer paper, creating pieces with a perfectly straight edge and long enough to cover the area and wrap around the bottom. I cut 5-6 pieces for each of the openings. But you can use any paper. Butt the top edge of the paper up against the bottom of the fine line tape. Then use masking tape to attach the paper strips to the fine line tape. The paper strips cover the entire sides of the opening below the fine line tape. The object is to completely mask the argent areas while avoiding having any masking tape sticking to the fresh argent paint.
As was mentioned above, the matte black has no texture. I used John Deere Blitz Black in a rattle can, but there are other acceptable paints. Let it dry 24-36 hours, take a deep breath, carefully peel off the paper strips, and then remove the fine line tape.
Hopefully you'll be rewarded with blacked-out bezels even nicer than factory!
