The nonporous surface of a dry erase board combined with the dry erase ink of the markers is why you’re about to wipe the board clean. White, green or black – dry erase boards can be made in several colors. White boards are typically preferred in classrooms because they can double as a projection board.
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Dry Erase Boards | How It’s Made | Science Channel
https://youtu.be/BKZVvbj2AGU
