Acid free, museum grade passe-partout (window mat). It is also a component of the archival set. Best mats use PURE 100% cotton rag, it does not contain wood, and no harmful chemicals!
- 100% Cotton Fiber
- Solid Color Throughout
- Acid-Free & Lignin-Free
- Buffered to an Alkaline pH
- Fade & Bleed Resistant
- Special Surface Sizing for French Matting
- Meets All Museum Quality Standards set by the Fine Art Traded Guide