Browse Forums General Discussion 1 Feb 11, 2021 12:07 pm I'm re-painting one of my Bedrooms and the existing paint fell off the Ceiling. Looks like the pure white (plaster) material just on the Ceiling, I sanded it down a little but is still very powdery when I brush it. Do I need to seal this? I don't want my new paint flaking off. If I do, what would one recommend, and how many coats? Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Painting a Chalky plaster Ceiling 2Feb 16, 2021 7:04 am Many years ago I bought a unit on Manly beach in poor condition with chalky and flaky ceilings. I consulted a couple of separate painters that had done some work for me doing renos and they both recommended Bindenol ( an old sealer/binder no longer made ). I sanded and patched two of the ceilings that were the worst affected and painted them with one coat of Bindenol then a coat of primer and two coats of topcoat. Six months later they both started to peel again. Lesson learned. It's a bit like painting over rust. Save yourself some hassle and do what I did. I replaced the old plasterboard ceilings with new Gyprock ones. Problem solved.There are other probably better products now made but I doubt they would be any better at solving your problem. Stewie Hi, Have used the Dulux 1 step, oil base on my walls(white set), out of can it’s already a more thinner product than a final coat paint Also in water base Water or… 3 5024 Our 6m high Cathedral ceiling has 0 insulation, just plaster, wrap and tiles as far as I can tell. Wife likes the exposed beams, I hate the $600 per month heating bill,… 0 13478 yeah i couldnt picture it issue either, but i could clearly picture what they were doing wrong haha 2 5294 |