Why does the gold leaf turn black after being applied to the balcony ceiling plastering layer for a

Updated on Balcony 2024-06-28
1 answers
  1. Anonymous users2024-01-24

    You are pasting copper foil, and if you want not to blacken, the bottom layer is more demanding!

    Specifically, you need to confirm: First: Is the paint dry? Is the bottom layer waterproofed? Second: Is there an air conditioning outlet on the side?

    Specifically, you need to determine how it is blackened, and what is it like to tell the black spots?

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