Iron-ore-imbedded silicone rubber materials were produced for radiation shielding. Samples were tested against a Co-60 gamma source, which is widely used in nuclear technology and medicine. Decreasing the particle size of iron ore resulted in better gamma radiation pro-tection owing to more homogenous distribution. In addi-tion, the materials had flexible properties up to the addition of 60 wt% iron ore content. Further, 0.5 mmPbE gamma protection was provided by using 2.06-mm-thick SDT-60 as the Co-60 source. Iron ore-silicone rubber composites are candidate materials for lead-free flexible radiation protection systems owing to their relatively inexpensive and easy production.