If you can’t erase the ink on your white board (if you leave ink there for a long time this often happens) if you write over the ink with you white board pen again you can erase it easily. If a bit remains just write over it again and erase. I imagine the wet ink has an active chemical makeup that interacts with the dried ink on the board (but I am only guessing).
My drawing on the blackboard in my father’s office, photo by Bill Hunter
Related: Whiteboard Mechanical Simulation System – Make Your Own Chalkboard Paint – Low-Cost Multi-touch Whiteboard Using Wii Remote (2009)
This is a great tip and it also works if you have accidently wrote on the white board with permanent marker. Go over the permanent marker with a white board marker then the permanent marker will wipe away.
It’s nice tip. I didn’t know about it. I’ve my own school and there are a lot of white boards. I can’t change board again and again for little spots of ink, that’s I was looking for any solution.
I also do that when trying to erase ink there for a long time. I agree with you the wet ink has an active chemical makeup that interacts with the dried ink on the board.