The effect of gamma-irradiation on both the electrical conductance, Y, and diffusion coefficient, D, of acrylonitrile butadiene rubber mixed with different concentrations (1, 3, and 5 phr) of low-density polyethylene (LDPE) that was swollen in benzene, have been studied. The diffusion coefficient decreases with increasing the gamma-irradiation dose for loaded samples with 1 and 3 phr of LDPE content, while samples with 5 phr of LDPE show a significant increase of diffusion coefficient with the increase of the radiation dose. The electrical conductance was found to be highly affected by the gamma-irradiation dose.