The transmission doses of radiation shielding sheets, 1.6 mm in thickness, were measured at a tube voltage of 50, 80, 100, 120 and 150 kVp. A combination of tungsten and silicon along with a barium base showed better particle packing with a transmission dose of 4.07 mR at 100 kVp. The tensile strength was most excellent in the sheets containing rubber. Therefore, the combination of rubber was good for commercialization but a better mixing process and more pressure in the aging process are considered necessary because its shielding ability is not so good due to its porosity.