One way to make paper mache paste is to combine two parts flour and one part water. Mix the flour and water together until it is smooth and runny, with no lumps all. If you are worried about mold developing on your paper mache sculpture, add a few tablespoons of salt to the mixture. To help mask the paste's unpleasant smell, add a dash of cinnamon.
Another way to make paper mache paste involves mixing three parts white glue and one part water, or using an equal mixture if the glue is thick, like Elmer's glue. Other people prefer to cook their paste, mixing one part flour with five parts water, before heating it on the stove top for about three minutes. After the paste has cooled, it is ready to use.
Once a paste has been made, it can be used right away or stored in a refrigerator for a few days. It works well at room temperature or when chilled.
Experienced paper mache artists stress the importance of using no more than four layers per application and allowing the sculpture to dry fully between applications. Layers may be added, in four-layer increments, until the desired look or feeling of solidity has been achieved.