Actually, yes, I DO maintain a strategic reserve of banned/difficult to find resources, for example R12 Freon, R22 Freon, Halon 1301, Halon 1211, various compre

Actually, yes, I DO maintain a strategic reserve of banned/difficult to find resources, for example R12 Freon, R22 Freon, Halon 1301, Halon 1211, various compressed gasses of assorted toxicity, Methylene Chloride based paint strippers, , a few hundred pounds of lead ingot for my smelter, radioactive lanthanated/thoriated tungsten electrodes, etc. My limited selection of asbestos is all safely encapsulated in cross-corrugated stainless steel sheets with seam welded edges, so no worries there, but when you need to protect equipment from exposure to a 2000F flame, there really no substitute. (Fiberfrax will sometimes do in a pinch, for a limited duration.)