Perma/Dur Tan Buffered Barrier Board

Tan high quality 40 pt. barrier board is acid-free and lignin-free and excellent for phase box construction, custom-sized boxes, dividers, etc. It is manufactured by laminating our extremely strong and durable folder stock onto long-fibered bleached sulphite/sulphate pulp which possesses excellent strength characteristics. Buffering is achieved with calcium carbonate (3%). The tan color is non-bleeding and the approximate 8.5 pH level assures a stable material for a variety of conservation applications. This barrier board offers an alternative material to our standard gray/white and black boards. Price per package of 25 sheets.