Before discussing how to get a pastel ready for picture framing, we should explain what these are. Pastels and charcoals are drawn or painted with short sticks or chalks which are friable media. Friable means a powdery 
or crumbly and otherwise loose and unstable medium. In fact, if you happen to accidentally touch a pastel or charcoal, chances are that you will smudge it and that some of the medium will come off and stick to your hand. Therefore it is important to safeguard the artwork from accidental touching, smudging, other contact or pressure damage. If needing to temporarily store or transport ...
and photo frames. New window mats (also called window mounts) shouldn't get to Customers dirty or scuffed but occasionally this does happen. If you do get this problem, you have the choice of going back to the mat supplier and asking for a mat replacement or try to fix .. the problem yourself. This post will not address the former solution but the latter. When a window mat or matboard bears scuff ...