I had cracked paint on the walls so i sanded them down to a very smooth finish, then washed down the walls, i?

then was told to seal the walls with a sealer, which i did. then sealer has lossened the paint behind it and dried so now the finish is really poor. what can i do now, please help as im very angry that this has happened.I had cracked paint on the walls so i sanded them down to a very smooth finish, then washed down the walls, i?
Unfortunately there is a lot of duff amateur advice around. I hope you didn't seal your walls with PVA.





Previously painted walls do not need sealing or priming unless they are friable, powdery, unstable. Otherwise you straight emulsion over them.


If you do prime/seal them because they need stabilising then Bullseye 1-2-3 is the stuff to use.





You need to sand you walls down until you hit a surface which is soundly attached to the walls. If you wash the walls down do it with clean water only - you are only removing the dust that could act as a barrier to your new emulsion.





The sealer you put on has loosened the paint underneath either because it was a strong sealer and bit into the paint or the paint underneath it was not soundly attached anyway. Either way, and it is hard for me to judge without seeing it, you can only paint on a soundly attached surface and you have to get back to that. If you have real problems with the surface and have many hours of sanding adhead, then buy or hire a palm sander. Dewalt or Makita are the best and you can get one for 拢60-80 and thereafter you can use it on all your woodwork etc.I had cracked paint on the walls so i sanded them down to a very smooth finish, then washed down the walls, i?
If the paint remains soundly attached you will not need to sand back to the walls. If it is unstable, then yes, you will have to sand back to stability or plaster. Be care not to scratch bare plaster with rough sandpaper and apply very thin emulsion as a first coat primer. Report Abuse

Did you allow the walls to dry for 24 hours before applying the sealer? If not, that's the issue; moisture trapped behind the sealer. Or is it possible that wall has a moisture issue that started the whole problem?





Unfortunately, there is little remedy but to sand the walls again. This time don't wash but just go over them with a damp cloth to get all the sanding dust off and let them dry for a day before moving on.





What product did you use the ';seal'; the walls? I use Zinser's Bull's Eye 123 which is a primer/sealer and have had no issues with it. It can be used outside, inside, with oil base or latex base paints.





Hang in there and you'll get the results you want!
What type of walls?
repaint it ...