Perma/Dur Black/White Buffered Barrier Board

Sheets of our sturdy 60 pt. black barrier board (pH 8.5) are now available for a variety of uses. This improved barrier board is acid-free throughout and buffered with approximately 3% calcium carbonate. The black side has a smooth surface and the white lignin-free side eliminates any concern for color transfer to objects placed against it.  This board is ideal for making phase boxes, special size boxes, dividers or any use where an archival quality board is required. May be cut to special sizes - consult our customer service department. Sold in packages of 25 sheets. Price per package.