Pinit 32 x 40" Black Foam Board. 3/16" thick. Lignin-free, acid-free, buffered. Museum Grade Archival. SKU: KFB3240K316 (0)No Reviews yet Add to Shopping Cart Details 32 x 40" Black Foam Board. 3/16" thick. Lignin-free, acid-free, buffered. Museum Grade Archival. Details Back Details32 x 40" Black Foam Board. 3/16" thick. Lignin-free, acid-free, buffered.Museum Grade Archival. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review