Foam boards, like mount-boards, are used for mounting and also as supports for professional presentation of artworks. The major deference in the two boards is the make-up and thickness, which inevitably dictate the variations in their usage. Foam Boards, also known as Foam Core, derived its name from the fact that the lightweight boards sandwiched an equal-sized Styrofoam. Or you could say it is a piece of Styrofoam covered with cardboards on both sides to make foam-centred boards. The boards can be either plastic or paper, with foam centre, to prevent it from warping. The downside to the use of form board is that they cannot be archival or use to preserve work over long periods of time. This is due to the fact that the large part of it is made out of polystyrene that naturally decomposes over time.
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