
cleaning kerosene off of wall concrete wall
This one is doozy. Recently had a Schizophrenic neighbor try and firebomb my duplex with Molotov cocktails. They threw 3 of them and totally coated the concrete wall, but thankfully the burning rag they threw fell into the concrete staircase and was contained.
I need to remove all the potential fire hazard from the wall to reduce the potential of fire and remove the stains. What would you recommend to cleaning it with. I was thinking of putting a industrial de-greaser in scrub bucket, apply it and then pressure wash it off after letting it sit a 10-15 minutes and maybe repeat.