Well, one theory is that the chemicals contained in the whiteboard marker somehow reacts to the permanent marker, making it rub off, but it is not an excellent way to clean off permanent marker.
From squid
hHir spray works good on any surface with permanent marker on it.
The solvent for permanent marker is denatured alcohol (hardware store). But it will also require plenty of elbow grease.
Amputate the affected area.
Well, one theory is that the chemicals contained in the whiteboard marker somehow reacts to the permanent marker, making it rub off, but it is not an excellent way to clean off permanent marker.
Write with it and let it dry...it's permanent.
Permanent if you want it to be that. OR Whiteboard Washable
if it is on the housing (plastic / non screen part) get the aeresol version of "goof off" be sure to use it in a very very well ventilated area ----------------------------------------------------------------- To remove a permanent marker mark of an lcd screen (what i did); dab a little hand sanitizer on a napkin then rub the affected area. This has been proven by me, this will not ruin your screen.
I have found nothing to get permanent marker off of anything. That is why it is called permanent. It stays.
it is tasteless
Not coming off
acryilic
From squid
hHir spray works good on any surface with permanent marker on it.
I would try fingernail polish remover. That will take permanent marker off of almost anything.
to get permanent marker off my backpack is nail polish remover or it will just faid away eventually