I need help removing paint!

[herbaltea21]

Please help!
I don't have a lot of info as I have just moved in... but this is the situation.
Bedroom with plaster and painted walls. Tried to paint white on the pink original paint using contractor paint as the first coat. Part of the original paint started to lift below and flake away whilst rolling. I scrapped that back and all the new and original paint came away in certain areas. Tried to paint over again and the same thing happened in different areas. Tried again with a white undercoat instead and the same thing has happened. Starting to wonder if the original pink paint is having a weird reaction to any new paint? It's a big room and I just don't know what to do!
Do I strip all the paint? If so how is the best way to go about this?
Please help!!

Stripping it off would be really difficult.
I think it would be easier to paper the room with plain lining paper and then you have a nice plain surface to paint on.

We always put lining paper up tbh as we find it feels a little warmer, and it’s just a better surface to paint on, but our houses have always been old houses. I’m sure if I had a new build with pristine plaster I wouldn’t bother with lining paper.

Sounds like the pink paint wasn’t must coated first: can you peel it off in big strips like pva glue on the back of your hand?

Some parts, sort of. The parts that have lifted come off easily with a scrapper but I think that's because the new paint has lifted the coat below it?

@Whatsthestorytomorrow yes I see where you're coming from. The problem is that my dad seems to think it won't stick to the old paint. I also don't have anyone to do that for me 🙈

Try using a stabilizing primer. Though it will probably look uneven due to the peeled off patches.

personally I’d scrape all the loose paint off, then try to soften the edges with sandpaper, or maybe use some filler to smooth it, then sand and stabilize.

complete pain to do, but hopefully the old paint will come off easily and in big patches.

i wouldn’t put lining paper on an unstable surface.

I wouldn't hang lining paper on an unstable surface either and annoyingly it does sound as though the person who painted the pink onto the plaster didn't apply a mist coat first.

Not what you want to hear, but we had the same issue in the extension at our current house (have never had the problem in our previous seven houses 🙄) and in the end we battened the walls, re-plasterboarded, skimmed and began again - mist coating properly this time whilst cursing the idiot previous owners/their builder! Fortunately my DH is excellent at plastering 😉

Thank you! This so why we have done about 4 times now but every new coat of paint lifts a different section!
I think what I need to do is remove the whole pink coat but o just don't know how to do this as not all of it has lifted of that makes sense!

Ahhh gosh what a big job!! Glad you got it sorted, I'm hoping I can find a more user friendly method 😅

Agree with other posters. I wouldn't hang lining paper on uneven surface. The cheapest method is paint striper. You can get a tub for a tenner. It has a strong pungent smell, toxic and effective. Wear protective eye gear, gloves and face mask when you are using the paint striper. Open all the windows.

www.wickes.co.uk/Polycell-Paint-Stripper---500ml/p/249441

We took layers of paint off one room using paint stripper from. Screw fix. Paint it on, leave it, scrape off. Really messy, took aaaaages, toxic etc but the plaster was like new after we'd scraped and sanded and we were able to mist coat and paint.