In this article we study the kinetics of thermal degradation of the epoxy system BADGE n = 0/m-XDA using different kinetic methods with data from thermogravimetric analysis (TGA) in dynamic conditions. Activation energies obtained using different integral methods (Flynn-Wall-Ozawa and Coats-Redfern Methods) are in good agreement with the value obtained using the Kissinger method (204.44 kJ/mol). The solid-state decomposition mechanism followed by this epoxy system is a decelerated R-n type (phase boundary controlled reaction). We have also calculated activation energies using the Van Krevelen and the Horowitz-Metzger methods. These last methods corroborate the decelerated behavior.