Should I sand the ceiling before painting?

[Stefania]

Hi,

After trying so many brands, I still didn't find the right paint for the ceiling. A friend recommended me to try Tikurilla Anti Reflex White 2 for my ceiling in the living room. I have a bay window and is coming in a lot of light. I painted last time with Crown Vinyl matt brilliant white and I can see roller marks everywhere and it dries so quick that I don't even have the time to lay it on properly.
I am thinking to sand the entire ceiling before, but can you please advise me what sandpaper grit should I use?
Thanks a lot!

 

[wzrd]

Is it a newly plasterboarded/skim plastered ceiling? Was it primed properly? Surprised that you are seeing the roller marks. Are you pressing the roller too much, perhaps? I use 120 - 180 grit before painting. Make sure you remove all the dust before repainting. I always use dulux matt pure brilliant white and never had issues.

 

[Stefania]

I should have used Dulux from the first time but I was scared reading all the reviews on the websites. Yes, it was primed with a mist coat and after I put 2 coats of Armstead contract matt but it wasn't what I wanted and then I tried Crown. The ceiling is sucking so quickly the paint. Now I heard that this Tikurilla is very good for large ceilings so I will give it a go. It also good because is anti reflex.

 

[Stefania]

It can also be the way I apply it, I don't know. Now I am also confused in what direction should I apply the last coat, parallel with the windows or perpendicular, probably is important.

 

[Stefania]

This is the paint I used last time.

 

[Stefania]

I took these pictures last night. You can see patches flashing everywhere because it dried so quickly that I couldn't even lay the paint on. But I don't understand why it's so absorbant.. it was grey plaster, it is an old building.