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  • Thanks again. Yes, it is a damp stain, caused by the same leak as the flaking paint in the bedroom. What kind of product would you recommend as a stain blocker?

    I have also a couple of oily looking, shiny stains that only started showing during the recent hot weather.

    I have feeling the flat had a very shoddy paint job all over!

  • Cover Stain from Zinsser is my go to. Those shiny patches that can appear are still a bit of a mystery to me.

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