Composite carboxyl terminated polybutadiene (CTPB) polymer using DER-331 epoxy to cure. This one is used as the binder to make the Space shuttle SRB propellant. Very popular and practically foolproof, taking longer to cure than R-45, the cure temps range from 150° - 200° F. Takes approx 4-7 days @ 180° F. The higher the cure temp, the faster it will cure, as with all CTPB systems. Literature using PBAN is in our literature section "Composite Color Flames" by Gary Purrington. For curative(s) go here. Can also be used to make insect sticky paper and hanging strips. Simply paint a thin layer on cardstock or ribbon. Requires no curative for this. Does not dry out - Works Great!