If you are looking to create a durable paper mache project, glue is generally better. Flour always has the potential to get moldy or rot, especially if you live in a humid climate.
When you’re doing fun paper mache projects for young kids, flour is safe and easy. For older kids looking for impressive paper mache styles, you might want to upgrade. Try Elmer’s Art Paste, ACTIVA Fast Mache Fast Drying Instant Papier Mache, or resin.
If you want serious durability, look to resin. You can make your own resin paper mache paste (we love this recipe!).