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Anonymous users2024-01-24Ceramics are very hard, leaving a black mark may be an oxide of steel wire balls, you can try it with diluted hydrochloric acid, hydrochloric acid only reacts with metal oxides, not with ceramics, for reference only.
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Anonymous users2024-01-23The porcelain is off? If not, wipe the towel vigorously with some dish soap.
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Anonymous users2024-01-22You must have brushed off the white porcelain on the surface, and there is no way to pay attention to it in the future.
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Anonymous users2024-01-21The one that tells you to use steel wool.
If it is formed by the steel wool ball scratching the surface of the ceramic, it is not easy to do; If it is a metal stamp of the steel wool itself, you can use dilute hydrochloric acid, citric acid or vinegar to wipe it.
Use soot to make a paste and apply it to the stain in a slow rub, and miracles will appear.
It may not be possible to remove it anymore, unless the bricks are replaced. I don't know what brick you use? According to the picture, it looks like an artificial microcrystalline or marble, if it is the above 2 kinds of imprints, it generally can't be removed, because the variegated color has penetrated into it, so how to deal with the color inside the surface can not be removed.
The surface enamel is blackened without damage, and it can be erased. >>>More
The toilet cleaner has a certain corrosive power, which means that the toilet seat has left a white mark due to corrosion, and it cannot be changed. Unless you sand, repaint or re-install a toilet seat, you can either accept the reality and there is no other way.