Dry powdery ceiling not sealing

Bsouthby · Post by **Bsouthby** » Wed Jul 07, 2021 7:49 pm

Hello,

I have got a plasterer coming around to plaster my ceilings and he told me to blue grit the ceilings before he came over so it’s ready for him when he gets here he is a mate and is doing it after work. One of my ceilings I am having trouble with the paint is like really fine powder and when you run your finger over it you’ll have it on there. I got the roller out and rolled the ceiling with the blue grit and when rolling in some areas it was peeling off as you rolled over it but I carried on and got the ceiling all done. I came back to it a day later and checked up on it and you can peel the blue grit off and it comes off cleanly and the ceiling is still powdery. I’ve got my big scraper out and it just glides through and takes it off. What’s the best thing to seal the ceiling with. I’m doing the ceilings in the hole house and now the first one is causing me trouble I don’t know what to do.

Has anyone come across this and got any ideas.

I’d rather not overboard it as that’s extra materials and extra Labour. That I didn’t budget for in this renovation and this ain’t the first thing that hasn’t gone to plan

Any help is appreciated.

Thank you

Bsouthby · Post by **Bsouthby** » Wed Jul 07, 2021 8:19 pm

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Bsouthby · Post by **Bsouthby** » Wed Jul 07, 2021 8:24 pm

It was bothering me so I went back to the job to have another look.

As you can see by my photos the blue grit just comes away from the ceiling with a scraper and still wiping it with my finger I still get white power. I got a baby wipe I had laying around and the power can be wiped off back to plaster so I might get a sponge and clean it off. It’s annoying because it’s in the main bedroom ceiling and not in the smaller one and only in half of the hallway ceiling and not in the bathroom. I haven’t made my way downstairs yet as I’m working my way down

London mike 61 · Post by **London mike 61** » Wed Jul 07, 2021 9:11 pm

Give your ceiling a coat of Zinsser gardz https://www.google.com/url?sa=t&rct=j&q ... leMZlxZKtu it will seal the ceiling then you can apply the blue grit.

Mike

ayjay · Post by **ayjay** » Wed Jul 07, 2021 10:51 pm

Probably Distemper: I don't know the properties of Zinsser Gardz, but usually with Distemper, washing it off is the only way forward, (short of another coat of Distemper on top).

Bsouthby · Post by **Bsouthby** » Thu Jul 08, 2021 12:10 pm

I can’t find zinsser gardz anywhere.

I’ll see how I get on with a bucket and sponge plaster underneath looks good so might no have to replaster after lol