* Yes, it's a good insulator: Asbestos fibers are excellent at trapping air, which slows down the transfer of heat. This makes it effective in resisting high temperatures and preventing heat loss.
* But it's incredibly dangerous: Asbestos fibers are extremely small and can easily become airborne. When inhaled, they can lodge themselves in the lungs and cause serious health problems, including lung cancer and mesothelioma.
Due to its hazardous nature, asbestos is no longer used in most modern building materials.
Here's a better way to think about it: While asbestos is a good insulator, its dangers far outweigh any benefits. There are safer and more effective insulation materials available today that don't pose the same risks to human health.
