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China Paint Network
: The use of lead in daily necessities goes back to the Roman period. The ancient Romans added lead to cosmetics and added it as an additive to food and wine, tin cutlery and other items, including pigments, of course. Throughout the Roman Empire, this cheap metal was even used in water pipes. Lead has been used since ancient Rome. No wonder no one thinks about why lead is added to pigments. Why do manufacturers add lead, a heavy metal, to pigments? What does it do?
in pigments, different lead compounds are added as pigments, and the color they form depends on which lead compound is added. Lead carbonate (also known as white lead), for example, forms white or milky white pigments, while lead 4oxide (also known as red dan) forms bright red pigments.
, a heavy metal additive, also reduces the time it takes for pigments to dry out, making them more durable and moisture-proof. These properties of lead make lead
coatings
ideal for household, metal and even children's toys.
, although lead paint is very durable, their biggest drawback is lead. Exposure to heavy metals can lead to many health problems in the human body. Too much lead in the body can cause convulsions, coma and death, and trace amounts of lead in the body can cause damage to the nervous system, brain, blood cells and kidneys. Infants and children are most vulnerable to lead poisoning, which can hinder their physical and mental development, cause behavioural problems, and have low IQs.
, the U.S. government banned most lead paints in 1978. However, lead paint can still be used when renovating a house, but the U.S. government requires lead levels in household lead paint to be less than nine out of 100,000. Lead paint was so popular before 1978 that it was used in many houses built before that. What the EPA doesn't specify is that good lead paint is not harmful. Lead dust produced by lead paint can only cause damage to people's bodies if it is damaged, such as peeling, wiping off, or during renovation.
