Strathmore Museum Mounting Board Acid Free Photo Gray 2 Ply Each (134-321)

Successfully challenges the effects of time as well as the environment upon valued works of art. Made of 100% cotton fibers, it is made acid-free and buffered with calcium carbonate to guarantee longevity. The surface is designed to deliver a smoother, cleaner cut. The colors are solid throughout the board and rated at 80 hours tested fade. Available in two ply (.0129 in. + / - .0015 in.) and four ply (.0610 in. + / - .0030 in.) thickness. Acid-free. 32 in. x 40 in.