I used the oil-based original Kilz to block some water damage to my popcorn textured ceiling. Then I repainted with a flat finish ceiling paint but the area where I used the Kilz is very glossy whilst the rest is flat (as it was supposed to be). Anyone got any ideas about how to proceed to flatten the gloss? I'll redo the ceiling if I have to but I don't want a glossy ceiling.
Agkistrodon