Foam board is used for backing and mounting your art work. An extruded polystyrene center is sandwiched between two sheets of barrier paper.
Foam Board is available as full, uncut 32" x 40" sheets or custom cut to any size to an 1/8th inch.
Regular Foam Board is a good, economical choice, featuring clay coated barrier paper. (Slightly acidic)
34FB........Regular Foam Board/32" x 40" sheet
Acid Free Foam Board was designed to meet specific conservation standards for preserving works of art. The barrier paper is warm-white and acid free.
34FA........Acid Free Foam Board/32" x 40" sheet