When checking the quality of the surface treatment, be sure not to touch it with your hands.
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When inspection supervisors check the metal surface treatment of anti-corrosion works, they inadvertently touch it with their hands; in fact, this is a very bad habit. This is because human sweat is a colorless or pale yellow liquid with a salty taste and weak acidity, its pH value being 5-6. In addition to sodium, potassium, calcium, and magnesium salts, it also contains small amounts of organic acids such as urea, lactic acid, and citric acid. When sweat comes into contact with metal, a layer of sweat film forms on the surface of the metal. This sweat film exerts an electrochemical effect on the metal, causing it to corrode. Sometimes, due to our inadvertent touching of the treated metal surface, the anti-corrosion treatment can cause bubbling and damage to the anti-corrosion layer over time. Sweating is inevitable; to prevent rust caused by sweaty hands, one should wear gloves or finger covers, and avoid touching the treated metal surfaces with bare hands.
When checking the quality of metal surface treatment, construction managers should avoid touching the metal surface with their hands directly, as human sweat contains salts and organic acids, which can undergo electrochemical reactions with the metal, leading to its corrosion. To avoid this, gloves or finger cots should be worn to prevent sweat from coming into direct contact with the treated metal surface, thereby protecting it from damage. .
Thank you for sharing. Why would I touch it?