Washable and acid-free for use on paper, cardboard, photos, fabric. Glue dries clear, wrinkle-free. Choose clear-drying purple glue to easily see where glue is applied. Great for use in schools. Washes easily off hands and clothes. Ideal for archival materials. Stock up and save! Adhesive Type: Glue Stick; Color Dried: Clear; Color on Application: Clear; Washable: Yes.