I don t know what the colored object grows in the cracks of the dirt wall of the bathroom

1 answers

Anonymous users2024-01-24

Generally, Portland concrete used in home buildings or engineering buildings will appear long hairy and salt-frost-like crystals on the wall after a period of time (the time can be long or short). The rough room will be directly precipitated, and the decorated, paint, etc. will bulge, peel and fall off. It does not fade for many years, which seriously affects the appearance, and this phenomenon is called the "pan alkali" phenomenon.

You can use the stone pan alkali cleaning agent on the market, which is a colorless translucent liquid made of non-ionic surfactants and solvents, etc., which has a certain effect on the cleaning of some natural stone surface pan alkali. However, before use, be sure to make a small sample test block to test the effect and decide whether to use. Walls can also be cleaned with a 10% oxalic acid solution or diluted hydrochloric acid.

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