"Agkistrodon" wrote in message
....
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.

Step one: get rid of the popcorn.

Put Kilz on the damaged spot if needed, then paint the entire ceiling with a
good ceiling paint and it will look much better and cleaner.
Ed

http://pages.cthome.net/edhome