foamcore

Foamcore is a strong lightweight, easily cut material useful for backing, mounting photographic prints, framing, 3D design and painting. It consists of three layers — an inner layer of  polystyrene clad with outer facing of either a white claycoated paper or brown Kraft paper.The original white foamcore board was made in 1/8 inch (3 mm) and 3/16 inch (5 mm) thicknesses for the graphic arts industry by Monsanto under the trade name Fome-Cor. The surface of the regular board is slightly acidic. For archival photo purposes Monsanto produces a neutral, acid-free version. Similar products are now available from competitors in a wide range of sizes and thicknesses.
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