Natural rubber (NR), as a solvent and repository of electric charges, starts to gain these properties after adding to NR CoCl2 or FeCl2 or SrCl2 or ZnCl2 in the form of methanol solution with addition of active carbon. Electrical conductivity of such a NR - active carbon system with added NR CoCl2 or FeCl2 or SrCl2 or ZnCl2 equals to 10(-6) to 10(-5) S . cm(-1) at a room temperature of 293 K and a frequency of 10 kHz. The examined electrolytes were tested for the frequency range of 1 kHz to 25 kHz. These polymer electrolyte systems may find their application as materials for anticorrosive and antielectrostatic protection of fuel or hazardous material tanks.