re: ok- a question
The dust migrated up into crevasses and thru fabric and passed neoprene gaskets within hours of exposer. The stuff is like little micro-plane digging at everything and nothing the astronauts tried effectively removed the dust.
RL do an experiment for me. Take some volcanic ash or fine lava dust and some nylon rip-stop rub them together for a couple minutes and bag up the dust into the worn cloth and smack it against a wall. Did you leave some dust behind? I would do this with some Mount St. Helens ash just haven't gotten down there in years.