Phenolic Resin
Phenolic Resin is not only an outstanding fuel but it also has great binding qualities. In the study linked below, you can read about the method of producing large pyrotechnic comets that are cured in a matter of hours. This is a significant reduction in the drying time as compared to traditional methods which sometime require months.
"Phenolic Resin / Hexamine binding of pyrotechnic compositions" as presented at the 2015 ISF meeting in Bordeaux, France.