Abstract
The paper reports on the effect that the solid product from pyrolysis-cum-water vapour of waste green tyres (SiO2D), has upon the properties of EPDM based composites. The results have shown that in the course of pyrolysis the silanol groups over the surface of silica used as filler of the rubber vulcanizates subjected to pyrolysis are preserved in the final product of that process. No changes occur in the particles size. In the presence of TESPD the properties of the composites filled with SiO2D are comparable with those of the composites comprising conventional fillers. That allows the conclusion that SiO2D could replace completely conventional silica when manufacturing EPDM based rubber compounds.