Issue with paint on plaster - HELP needed please!

[johnwo00]

Hi everyone,

I moved into an old 1900s property recently and I DIY repainted the walls about 3 months ago. Most of the painting was directly onto the old paint and other parts on the old plaster directly where the old paint peeled off or sanded off.

Today I am seeing bubbling in a few parts of the wall. You can also see the newly painted part breaking in places.
One part I thought could be fixed by applying a layer of white filler then white primer and then paint - I left this for a while before painting and as you can see it has started to bubble up again.

What is causing this? is this damp?
How can I fix this?

Thanks!

 

[Wayners]

Multi finish used over lime plaster

 

[Timothyellis]

Hi everyone,

I moved into an old 1900s property recently and I DIY repainted the walls about 3 months ago. Most of the painting was directly onto the old paint and other parts on the old plaster directly where the old paint peeled off or sanded off.

Today I am seeing bubbling in a few parts of the wall. You can also see the newly painted part breaking in places.
One part I thought could be fixed by applying a layer of white filler then white primer and then paint - I left this for a while before painting and as you can see it has started to bubble up again.

What is causing this? is this damp?
How can I fix this?

Thanks!

Scrape off and pva 1to5 ratio should be fine do score the area lightly and 1 coat pva with roller and make sure before you apply your product over the hard wall that your second cote of pva that you put on touch it to feel it get sticky then go over the area should be able to blend it in no worries

 

[essexandy]

Scrape off and pva 1to5 ratio should be fine do score the area lightly and 1 coat pva with roller and make sure before you apply your product over the hard wall that your second cote of pva that you put on touch it to feel it get sticky then go over the area should be able to blend it in no worries

Are you on drugs Timothy?

 

[Monkey Boy]