Paint bubbling/blistering

plumb1_2

Maybe a stabilising solution willwork

Postik

I had this when a professional painted a ceiling not so long ago using, I think it was Dulux.  His technical contact said it sounded like a reaction with the old paint.  I scraped the bubbles off and he repainted - not the greatest finish but he was doing the job partly as a favour.

The paint I used when decorating years prior was Wilko's own - no bubbling when I painted using this at the time.  I couldn't say what paint was undearneath that.

badatDIY

Postik said:

I had this when a professional painted a ceiling not so long ago using, I think it was Dulux.  His technical contact said it sounded like a reaction with the old paint.  I scraped the bubbles off and he repainted - not the greatest finish but he was doing the job partly as a favour.

The paint I used when decorating years prior was Wilko's own - no bubbling when I painted using this at the time.  I couldn't say what paint was undearneath that.

And did the bubbles return?

Postik

badatDIY said:

Postik said:

I had this when a professional painted a ceiling not so long ago using, I think it was Dulux.  His technical contact said it sounded like a reaction with the old paint.  I scraped the bubbles off and he repainted - not the greatest finish but he was doing the job partly as a favour.

The paint I used when decorating years prior was Wilko's own - no bubbling when I painted using this at the time.  I couldn't say what paint was undearneath that.

And did the bubbles return?

I scraped the worst of them off and those didn't return but there were pockmarks left when it was then repainted.  I think there were some smaller bubbles in less conspicious places that I didn't bother to scrape off.  It was kind of annoying but the guy did the job cheap as a favour and it was my daughter's bedroom and she wasn't bothered so I decided to make do.  We moved house a couple of years later.

It only occured in this one room, however this was the only room where it had the original ceiling and I didn't have the ceiling re-plastered.  With that said, it hadn't occured previously in this room when I painted it with Wilko's emulsion.  So I am going to have to put it down to a reaction with the Dulux paint - either with the Wilko paint or with whatever paint was under there from previous owners in years gone by.

But to answer your question, no it didn't come back once the bubbles were scraped off and painted over.  However finding and scraping off every single bubble, then filling every single bubble, would have be quite a chore.

Justamum

I'm also having problems with a newly painted wall.  I stripped off wallpaper and I've painted over the bare walls.  In a few patches the paint started to crumble into tiny flakes.  I rubbed it off and painted over it, but it happened again.  The wall isn't damp underneath.  Most of the wall is fine, just a few patches.  Would rubbing it down and using sugar soap sort the problem out (as Mr.Generous suggested to someone).

Grenage

Lightly sand and wash problem spots, give it a mist coat and then paint.

ashe

We had this problem on our house.

solution we were given, which worked, was to paint first with a coat of zinsser guardz to seal It, then paint with your paint. 

It's like water, a can goes a long way. Ours looked exactly like your photo 

badatDIY

ashe said:

We had this problem on our house.

solution we were given, which worked, was to paint first with a coat of zinsser guardz to seal It, then paint with your paint. 

It's like water, a can goes a long way. Ours looked exactly like your photo 

Thanks!

I also emailed Zinsser and they told me that 123 is probably (they made no promises as don't know cause) the right product so I am gonna go buy some (I need it for the next paintjob in my bathroom anyway) and will let you know if it works

badatDIY

Well it sort of worked... But not really, new bubbles on different places now. Starting to think I just need to sand back every wall...