Because of the leakage of the artificial granite sink upstairs, the black stains caused by dripping

Updated on Washstand 2024-09-13
2 answers
  1. Anonymous users2024-01-24

    This is the deterioration formed by the chemical reaction between the substance in the leakage and the artificial stone, which penetrates deep into the artificial stone, and is either used like that or replaced. Don't rub it again, the more you rub it, the worse it is, generally the detergent can only be effective on the surface, not on the colorant that penetrates deep into the interior.

  2. Anonymous users2024-01-23

    Clean with a strong concentrated detergent, pH or hydrogen peroxide or borax, and then brush off with a steel wool brush.

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