And for the record, asbestos is only a health concern when two criteria meet: the material is friable and humans inhale lots of it. Ambulance chasing looyeahs have made an industry of extorting money from productive people in all insulating industries over these overwrought fears.
When you go to old power plants all the time like I do and you see insulated gaskets, pipes, cable tray, cables, and walls with that damn crap everywhere, and having to mitigate every time you disturb it, which guess what, you are going to, you damn well will see a) the material become friable and b) humans around to inhale above the normal amounts of it. It's not some damn conspiracy, it's literally everywhere in those old plants and you can't do any sort of upgrade or maintenance without disturbing it. And if you don't mitigate or do anything, then it'll hurt the workers exposed to it over time. It's like black lung for coal miners. One day or a few times isn't ideal and you'll probably be fine, but these people aren't exposed to it for short periods of time, they are around it everyday, for years, if you don't mitigate they will get asbestosis/mesothelioma. If you have the ability to prevent serious diseases for workers by properly managing the risks, you should do it.
