When the new glass Whiteboard after the customers have to use a whiteboard pen to write try to wipe. Pen and ink is easily wiped off, but always leaves a light, repeatedly rub can, of course, customers usually wouldn't spend much effort dedicated to go to clean up, writing will look very dirty.
Common marker will have such a phenomenon, which is the chemical composition of Whiteboard pen decision. But is easy to clean with a cloth damped in water. Therefore regular cleaning will look brand new. Especially projection glass whiteboard and after cleaning will be conducive to the image effect. Now have a good water chalk, wrote the essential good, but cost is a little higher, we are concerned about, such as costs come down, it recommended.