Glassine Paper - Sheets 25 lb 24 inch x 36 inch (Pack of 25) - Glassine Translucent PaperNeutral ph Glassine is important and essential for many reasons. In the art field, museums and art galleries use glassine to wrap valuable paintings. The glassine protects the work from moisture and stops acid and alkaline chemical reactions from the air from attacking the surface. Pastelists find glassine ideal for protecting delicate pastel paintings. Glassine is also 100% recyclable!