painting problem- old house, plaster wall

Hi I am painting an old plaster wall in an older home. I have noticed that the wall was painted 8 months ago with a primer and now some areas are completely peeling to the plaster---- I realize this could be calcimine but it could also be a moisture problem... If I put on a primer with anti-calcimine feature i.e. B. Moore- if it turns out that it is not calcimine--- will the oil based primer (thats B. Moore Product) still be beneficial for the moisture problem???? Thanks KOS
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KOS wrote:

Calcimine would dissolve when wet, so doubtful that is what is peeling. You NOTICED it was painted 8 mos ago, or you painted it 8 mos ago? If you have a moisture problem, you need to fix it before you paint again........no primer is going to stick to a wet surface and not blister or peel. Is it a bath or kitchen? If conditions were damp when it was painted, and there is no leak, then the solution is to get the space nice and dry and then use a primer and paint labelled for use on plaster.
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hi there. It was painted 8 months ago by another painter. Now it has peeled right down to the plaster. This is a bedroom, brick house...The plaster is dry not wet..and when it was painted the walls were totally dry no moisture.
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Is this latex paint on an exterior plastered brick wall? Use oil base paint.
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Use a moisture meter to determine if there is a water problem. If so that must be fixed first.
R
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