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trying to paint a bedroom, that has been papered and previously painted , but the paint won't stick to the wall , its all patchy I let it dry for a few days, tried again but the roller is just removing paint, or its just not taking any paint

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The walls need to be prepared first.

Light sand and then TSP cleaner over all the walls. If the old paint is oil based, you then need a coat of primer before you paint.

  • +1 for the mentioning of TSP. Another good suggestion is the primer. Make sure you use a good "High Cover" type primer. They make some specifically for situations like this that have zinc and other bonding agents that help bond to the substrate. – BrownRedHawk Jul 29 '15 at 20:04

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