The thermal behavior of an EPDM rubber mixture was measured between –125 and 160°C at 10 K/min. The glass transition was detected at –52.5°C. The melting above the glass transition (peak temperature at 31.4°C) is typical for the behavior of a sequence-type EPDM. The further endothermal effects (at 98.6 and 110°C) are due to the evaporation of processing agents. The presentation in the separate window clearly shows the high sensitivity of the DSC 200 F3 Maia^® even for small energetic effects (0.43 J/g).