A method for determination of phase transition temperatures for binding agents on a differential scanning calorimeter is considered. Differential scanning calorimetry (DSC) curves of different types of polymer binding agents that are used in production of items from fiber-glass and carbon-fiber plastics are presented. It is shown how to determine the optimal curing regimes using the resulting DSC curves. By the example of epoxy polymer binding agents, the effect of disperse fillers on polymerization process kinetics is demonstrated.