Artworks made with pastels are drawn by a crayon made from powder color pigments mixed with gum. Pastels are typically a soft and workable medium which will shed from the paper and is easily smudged if touched. We recommend raising the top mat from the pastel so any loose material will fall behind the mat instead of being visible against the glass- this is called creating a pastel tray.
- Matting should be used when framing a pastel so the glass does not touch medium leading to smudging the artwork.
- Plexiglass should not be used as a glazing because the static charge from the plexi will pull the chalk off of the paper and lead to smudging.