AC11620.3 - 16x20

• Conservation foamboard incorporates acid-free and lignin-free quality with the patented MicroChamber technology
• MicroChamber traps pollutants and neutralizes them as they attempt to pass through the backing board
• Ideal for conservation-grade backing board in a frame, adding extra support in larger frames and for mounting images

Use as backing board in sectional frames, with pre-cut mats, and mat boards