ACID FREE 32X40 FOAM BOARD 3/16"

Created for conservation mounting and framing, Insite® Reveal acid-free mounting boards deliver two-sided protection from damaging pollutants and harmful gases. Offers a pH value ranging from 7.5 - 9.5 and buffered with 3 -5 % calcium carbonate reserve. The liners are 100% High Alpha Cellulose virgin pulp, free from ground wood and/or post consumer materials.