The curing reactions of an epoxy system consisting of a diglycidyl ether of bisphenol A (BADGE n = 0), 1,2-diamine cyclohexane (DCH) with calcium carbonate filler, were studied to determine different kinetic parameters. Two models-one based solely on chemical kinetics and the other accounting for diffusion-were used and compared to experimental data both for systems with and without filler. It was found that 100 degrees C is the optimum service temperature, and also that the presence of the filler has no influence on the optimal service temperature range (60-100 degrees C) of the epoxy system.