There are a few different types of flour that can be used for paper mache paste, but the most common type is wheat flour. You could also try using cornstarch or rice flour, but wheat flour is typically the best option because it has a higher starch content than other types of flour. Either type of flour will work well, but we recommend using wheat flour if you're new to making paper mache paste. It's a little more forgiving if you make a mistake with the proportions.