I finally got around to finishing replacing the detached drywall tape on my kitchen ceiling. I retaped, mudded, sanded, wiped dust, and primed. I didn't prime the whole ceiling, since I'm just going from white to white and the previous owners painted the whole house shortly before we bought it.
I primed yesterday, and started painting today. The white ceiling paint is going on gray over the areas where I didn't prime, and stark white where I did prime. Why is this? I've used this same ceiling paint in 3 other rooms with no trouble, although this is a fresh gallon. Is there something wrong with the new paint? Or the old paint? Something else? Both the primer and paint I used are water-based; could the old paint be oil-based?
In the pic, from left to right: the unprimed ceiling someone else painted, the area I just painted on top of the unprimed ceiling, and the paint over the area I primed.
View attachment ImageUploadedByHome Repair1427989897.137381.jpg
I primed yesterday, and started painting today. The white ceiling paint is going on gray over the areas where I didn't prime, and stark white where I did prime. Why is this? I've used this same ceiling paint in 3 other rooms with no trouble, although this is a fresh gallon. Is there something wrong with the new paint? Or the old paint? Something else? Both the primer and paint I used are water-based; could the old paint be oil-based?
In the pic, from left to right: the unprimed ceiling someone else painted, the area I just painted on top of the unprimed ceiling, and the paint over the area I primed.
View attachment ImageUploadedByHome Repair1427989897.137381.jpg
