Didn't happen to me mate, happened to a friend. It was just a regular kiwi mop, ate right through it.
And i don't get the last bit, you want to take my hand?
Etch is a huge nono, unless you know how to be safe with the shit don't go near it. I know someone who used it in a mop and it ate through the mop body and poured all over his hands.
Horrible shit, i never use it.