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My friend has a wall in her living room that has some areas that are chalky. Its an exterior wall. Previously painted fine, several months ago.
Everything seems ok outside on external wall.
What process would you recommend to rid the wall of these chalky patches.
Would Zinsser peel stop be a good product to use?
Any advice would be very welcome. Thanks
Everything seems ok outside on external wall.
What process would you recommend to rid the wall of these chalky patches.
Would Zinsser peel stop be a good product to use?
Any advice would be very welcome. Thanks