Are Expo Markers Permanent

No, Expo markers are not permanent; they are designed to be used on whiteboards and other non-porous surfaces and can be easily wiped off with a dry eraser or cloth. However, if allowed to dry out or left on a surface for too long, they may leave a residue that can be difficult to remove. For permanent marking, a different type of marker, such as a Sharpie, should be used.