Paint peeling from interior walls - next step

jg31984

A couple of years ago, I stripped the wallpaper from my living room walls and painted with a matt emulsion. A year or so later, the paint started peeling and flaking , so the walls were sanded smooth and painted again. This happened again a few months ago, so sanded and painted again. More peeling so have given up, decided to remove the peeling paint, sand and paper. Thinking there may be a step before papering in order to stop this peeling off, but don't know what this is - should I use some sort of base coat or primer? Or will the problem be resolved by papering?

Any help appreciated!

McKneff

Not sure but i think you would have to coat it with a sealer first.

phill99

It sounds like the original plaster was never sealed properly. A sealer can either be a 'mist' coat of emulsion which is normally a 50/50 mix of matt emulsion and water or some people prefer a 'Unibond' or watered down pva adhesive. Once the plaster has been sealed it can be emuslioned in the normal way. The reason for sealing the plaster is that plaster sucks the moisture from the first coat of emulsion and therefore it doesn't adhere properly, resulting in peeling. Sealing the plaster stops this and therefore the paint doesn't peel.

NeverInDebt

If above doesn't work you a product called Zinsser bull eye 123 has excellent adhesion qualities but its not cheap paint but excellent water based primer. B&Q sell it but I think its smaller tins but a decorators wholesaler will sell it

mogadon

NeverInDebt wrote: »

If above doesn't work you a product called Zinsser bull eye 123 has excellent adhesion qualities but its not cheap paint but excellent water based primer. B&Q sell it but I think its smaller tins but a decorators wholesaler will sell it

Sorry to jump in on your thread, but I think this is something I've been looking for.

Can you paint over the top of it with emulsion? Also, sorry if I am being thick, but I can't see any coverage info on the site. Any idea how far a tin goes?

keystone

@jg31984

I don't think you cleaned all the wallpaper adhesive off properly. TBH. You MUST get rid of every last vestige before painting.

What paint did you use?

If you are going to paper it won't make any difference if thers any residal adhesive from preeviously. Use lining paper (at least 1000 grade preferably 1200) and paint it and it will look like painted plaster if thats the effect you want and you do it properly.

Cheers

keystone

phill99 wrote: »

.................some people prefer a 'Unibond' or watered down pva adhesive.......................

Yuk! PVA goes live again when you wet it. On goes the nice wet paint - PVA unsticks from wall because it doesn't penetrate the plaster it just sits on top - paint peels! Decorators nightmare is PVA (- and tilers too. )

Cheers.

keystone

mogadon wrote: »

Sorry to jump in on your thread, but I think this is something I've been looking for.

To do what exactly? Bullseye might not be the correct product for you.

Can you paint over the top of it with emulsion?

Yes.

Any idea how far a tin goes?

Zinnser don't guarantee coverage - thats why you won't find it. A gallon should give you 400 - 450 ft2. Note it's a US product so it comes in a US gallon sized tin.

Cheers

mogadon

A couple of my ceilings and covings have been painted with bright blue lead based gloss paint (not by me!) I want to paint over it with regular emulsion, but without sanding it down, because of the lead.

It sounds like I can use this to coat the gloss paint and then paint over it with regular emulsion afterwards. Is that right?

Thanks for the guide on coverage, would you usually need 2 coats? (Not to cover the colour up, just to get the emulsion to stick to it.)

I have another ceiling which has also been gloss painted, but painted straight over with emulsion. It's really patchy and you can smudge it with your hand. It's not a huge problem, because it's on the ceiling, so I just ignore that (bigger fish to fry at the moment) but would this work over the top of that as well? Or would I need to get the emulsion off first?

keystone

mogadon wrote: »

A couple of my ceilings and covings have been painted with bright blue lead based gloss paint (not by me!) I want to paint over it with regular emulsion, but without sanding it down, because of the lead.

How do you know its got lead in it? It might not have.

It sounds like I can use this to coat the gloss paint and then paint over it with regular emulsion afterwards. Is that right?

Yes although I prefer the oil based version - its seems (perhaps I'm imagining it) to stick to gloss better than the water based one.

Thanks for the guide on coverage, would you usually need 2 coats? (Not to cover the colour up, just to get the emulsion to stick to it.)

No.

I have another ceiling which has also been gloss painted, but painted straight over with emulsion. It's really patchy and you can smudge it with your hand. It's not a huge problem, because it's on the ceiling, so I just ignore that (bigger fish to fry at the moment) but would this work over the top of that as well? Or would I need to get the emulsion off first?

Yes you need to get the emulsion off first because the primer will then be stuck to the old emulsion which will not be stuck to the gloss. So you'd have wasted your time and money putting the Zinsser up!.

Cheers

NeverInDebt

Yes you can

I painted a wooden vanished ceiling with two coats of primer and 2 coats of Dulux one coat. It was a very dark ceiling hence why I wanted to paint it, it was by far the best solution that sanding, or taken the wood down, job done in 1 1/2 days allowing to dry. The primer itself dries in no time.

It is US based product in US gallon tin. I used two coats with large tin and have 50% left and a medium size ceiling

mogadon wrote: »

Sorry to jump in on your thread, but I think this is something I've been looking for.

Can you paint over the top of it with emulsion? Also, sorry if I am being thick, but I can't see any coverage info on the site. Any idea how far a tin goes?