White Foam Board / Foamcore is a very strong, lightweight and easily cut art material useful for sign making, backing artwork, mounting photographic art prints, framing,and 3D design and sculpture.
White Foam board consists of three layers; an inner foam layer of polystyrene sandwiched between an outer facing board of clay coated paper.
Non-Memory foam board is used to make cut out shapes where the edges get pinched and remain pinched.
The standard white foam board has a built-in memory, allowing it to return to its original thickness after cutting.
Foam board does not hold up well to wet adherents and is therefore not suitable for wet painting. For painting, Gatorboard is recommended.
However for sign painting with acrylics, as a temporary signage it is unmatched in its economy.