How to Protect Watercolor Prints with Glassine (and 4 Mistakes to Avoid)
If you are storing or packing a watercolor print, genuine acid-free glassine is the single best barrier you can place against the paper surface. Glassine goes through a supercalendering manufacturing process that compresses the fibers until they are entirely smooth, toothless, and pH-neutral, which means it will never scuff delicate pigments or react with fine art emulsions.
Four Packaging Mistakes We See Too Often
Over the years in our studio, we have seen people try just about every household shortcut to protect their prints. Here is what we actively avoid:
- Grabbing wax paper from the kitchen: Wax paper softens in warm weather and deposits waxy oils directly onto watercolor paper. Glassine has no wax coating.
- Bubble wrap directly against the art: Raw plastic traps humidity and leaves permanent dimple textures on print emulsions. Wrap the print in breathable glassine first, then add outer cushioning.
- Stacking loose prints in a drawer: Bare stacking leads to friction burns and ink offset. Laying individual glassine interleaving sheets between prints completely isolates the pigments.
- Using household masking or cellophane tape: Standard tape bleeds sticky adhesive into packaging over time and causes permanent stains. Use only acid-free artist or framing tape.
Never let tape touch the artwork itself; only tape glassine folds to other layers of glassine.
Cardboard and Large Print Rolls
Standard brown kraft paper and non-archival cardboard release acidic compounds and lignin that turn fine art paper brittle and yellow. Glassine provides the clean, neutral barrier that keeps those acids away from your piece.
When shipping larger prints over 16x20 inches in mailing tubes, lay glassine over the face of the art and roll it image-side out. It keeps pigment from compressing and cracking along the curve while eliminating friction scuffs during shipping transit.
