Hi there
My first post. I have read these forums with interest and seen various related topics, but thought I would ask for advice on my specific problem.
A few months back a came to decorate our spare bedroom - upon stripping the wallpaper I noticed that under humid conditions the original paint underneath was bubbling. I left the steamer on for an hour and popped/scraped as many of the bubbles as possible.
Where the bubbles were removed I had to use filler to get an even surface (otherwise I would have to strip the paint off the entire walls which would take weeks and weeks).
Painted the entire room and, surprisingly, 98% of it is fine. However, a day after paitning on one wall a small bubble appeared. I scraped this back, filled it, primed and re-painted the wall. This bubble didn't re-appear, but a few days later a cluster of tiny bubbles appeared further up the wall. It gave the impression that each time I painted, a new set of bubbles appeared as a result.
However, I left them, and over the course of a few weeks this cluster grew bigger, and then a couple of months later a new cluster of bubbles appeared a few inches across from the original set. A few more weeks and a third set appeared in-between the other two sets of bubbles. They start as tiny 1mm bubbles in a cluster and later start to join together.
It would seem that the bubbles appear of their own accord (not just when I give the wall another coat of paint) and they can take weeks to form. I don't know if this is a fault with the original coat of paint, a fault with my paint, a problem where I have used filler or a problem with the original plaster. Although the whole room bubbled when I first stripped the wallpaper it's now only one wall that is affected and this is confined to an area of around 2 feet.
For your information, after sanding and cleaning the walls I used a coat of white matt emulsion, and then a coat of magnolia Dulux Trade Diamond Egg Shell.
Anyway, I have scraped the bubbles away and half seem to go down to my first coat of paint over a layer of filler which is well attached to the wall, the other half did the same but caused the filler to fall away down to the plaster. The area is now somewhat uneven.
What I intend to do is sand the area as evenly as possible and then apply either an oil based undercoat or damp sealer. I'll then paint that patch with white matt emulsion and finally go over the entire wall with the Dulux magnolia.
Does this seem like a resonable thing to do? If I need to fill again to get an even finish, is there any particular filler that is more suitable (I used quick drying filler out of a tube from Wilko)? Also, should the sealer go on first and then the filler, or the other way around?
I have just enough of the Dulux paint left to do this one wall and it's quite expensive, so I've got to try and get it right this time!
Any advice appreciated! Thanks,
My first post. I have read these forums with interest and seen various related topics, but thought I would ask for advice on my specific problem.
A few months back a came to decorate our spare bedroom - upon stripping the wallpaper I noticed that under humid conditions the original paint underneath was bubbling. I left the steamer on for an hour and popped/scraped as many of the bubbles as possible.
Where the bubbles were removed I had to use filler to get an even surface (otherwise I would have to strip the paint off the entire walls which would take weeks and weeks).
Painted the entire room and, surprisingly, 98% of it is fine. However, a day after paitning on one wall a small bubble appeared. I scraped this back, filled it, primed and re-painted the wall. This bubble didn't re-appear, but a few days later a cluster of tiny bubbles appeared further up the wall. It gave the impression that each time I painted, a new set of bubbles appeared as a result.
However, I left them, and over the course of a few weeks this cluster grew bigger, and then a couple of months later a new cluster of bubbles appeared a few inches across from the original set. A few more weeks and a third set appeared in-between the other two sets of bubbles. They start as tiny 1mm bubbles in a cluster and later start to join together.
It would seem that the bubbles appear of their own accord (not just when I give the wall another coat of paint) and they can take weeks to form. I don't know if this is a fault with the original coat of paint, a fault with my paint, a problem where I have used filler or a problem with the original plaster. Although the whole room bubbled when I first stripped the wallpaper it's now only one wall that is affected and this is confined to an area of around 2 feet.
For your information, after sanding and cleaning the walls I used a coat of white matt emulsion, and then a coat of magnolia Dulux Trade Diamond Egg Shell.
Anyway, I have scraped the bubbles away and half seem to go down to my first coat of paint over a layer of filler which is well attached to the wall, the other half did the same but caused the filler to fall away down to the plaster. The area is now somewhat uneven.
What I intend to do is sand the area as evenly as possible and then apply either an oil based undercoat or damp sealer. I'll then paint that patch with white matt emulsion and finally go over the entire wall with the Dulux magnolia.
Does this seem like a resonable thing to do? If I need to fill again to get an even finish, is there any particular filler that is more suitable (I used quick drying filler out of a tube from Wilko)? Also, should the sealer go on first and then the filler, or the other way around?
I have just enough of the Dulux paint left to do this one wall and it's quite expensive, so I've got to try and get it right this time!
Any advice appreciated! Thanks,