Product Description No more mixing paste and cutting strips of paper- simply add water for a great sculpting medium that is completely non-toxic and safe. Celluclay will adhere to almost any surface and can be sawed, sanded or nailed when dry. Celluclay can also be stored for several days in the refrigerator in a sealed plastic bag. Celluclay is great for paper mache projects and sculptures such as paper mache volcanoes, masks, boxes and even an egg!