I had florescent lighting taken out and canned lighting put in..they did a great job making it flat and retexturing..I waited a few days and primed the whole ceiling..I then put one coat of paint on the ceiling. After it dried, there were lines from the painting..not the lighting..only in the area where the new drywall was applied..what should I have done?
If the DW was patched correctly, you should be able to shine a hand held light from the side, and see no noticeable dips, or height variations. Just hold the light up near the ceiling to wash over the patched area.
Primer application is important-I use 2 coats always on this type of patch. The mud really wants to absorb primer/sealer. cover throughly
Never count on the paint to cover unprimed drywall. It will soak in, and take 3-4 coats to do the job of 1 coat of primer/sealer.