The liner in a rocket motor serves the purposes: (1) bonds the propellant to the case material, (2) protects the case from the hot gases during tailoff, and (3) protects the propellant (adjoining the case) from aerodynamic heating. "Thixcin" E, by making the binder thixotropic allows the liner to be applied in one coat. The liner is precurred 10 hr at 135'F (57'C) before the propellant is cast against it, and is then fully cured, along with the propellant, for another 140 hr "Mapo" 2.22 "Thixcin" E/1.00 "Erla"-0500/1.78 Iron "Octasol"/0.50 "HC Polymer" 434/84.20 Asbestos Floats/10.30