The shield industry, for civil or military purposes, use in its process of production, many different materials of scientific interest. The research for lighter and better ballistic-performance products have been studied for many years. However, not much have been observed in relation to the environmental protection issue, whether it is in the own material life spam or simply, the responsible behavior by manufacturers and consumers. Therefore, the goal of this work was to measure the possibilities in reuse and/or recycling of polycarbonate used in shielding for cars and architectonics, observing if the essential characteristics were preserved to its original intent, like transmittance, tensile strength and impact resistance. Polycarbonate samples were submitted to different separation techniques from the original ballistic set, in order to observe the influence of the separation technique over the optical and mechanical properties of polycarbonate. It was also measured the polycarbonate s behavior after several autoclaving cycles, since this technique has been very much used in the recovery of delaminated shields. In order to measure the autoclaving separation techniques, it was used surveillance of electronic microscopic techniques, tensile essay, mechanical- dynamic analysis and visual ultra violet radiation spectroscopy. The results have shown that among the main factors that degrade the polycarbonate it is able to highlight the long-term exposition to ultra violet radiation, exposition to isopropylic alcohol and acetone solvents.