Jean-Paul Dethorey

Pencils, graphite and colored pencils are long-lasting. Pieces in wax crayon, black lead or charcoal require special care to avoid rubbing. However, never expose them to direct light. Like all materials, the paper used for these works is susceptible to change when exposed to UV light.
We advise you to display them away from windows, and to use frames made from pH-neutral conservation materials and “Museum” glass with anti-UV and anti-reflective treatment. If you prefer to keep your works unframed, we recommend storing them flat, in drawing cartons, with sheets of pH-neutral permanent paper in between. Keep them away from light and humidity.