DSC curves of trimethylindium were recorded at different heating rates and crucible loading densities. The two dominating exothermic bands were kinetically analysed by fitting a two-step reaction model of first-order to the deconvoluted DSC data. The kinetic parameters, calculated at low loading densities, are log z(1) = 18.3 +/- 0.2 s(-1), E-1 = 215.4 +/- 0.8 kT/mol and log z(2) = 9.3 +/- 0.2 s(-1), E-2 = 139.2 +/- 0.8 kT/mol.