OK, I'm in the doghouse (again).
Put some Lithofin stainstop onto our fireplace (good) but a drip fell onto the fire surround (bad) and I didn't see it until today (very bad) worse still I didn't see it until it was pointed out by SWMBO who (to put it mildly) expressed dissapproval.
Any way to get it off (the fire surround is matt black painted steel)?
Paul