"Lead in paint" refers to the presence of lead, a toxic heavy metal, used as an additive in paint to improve durability, moisture resistance, and color retention. Historically, lead compounds—such as lead carbonate (white lead) and lead chromate—were commonly used in residential, commercial, and industrial paints.
In Australia, the use of lead in paint has been heavily regulated due to health risks. Lead-based paints were widely used before the 1970s, and paints with high lead content (over 1% lead by dry weight) were banned for residential use in 1997. Today, the maximum allowable lead content in most paints is 0.1%.
Health risks of lead in paint:
Implications for painters and contractors:
Always test for lead before sanding, stripping, or demolishing painted surfaces in older structures.