New neutron shielding materials, KNS-201/202 and KNS-301/302 have been fabricated to be used for radioactive material shipping and storage cask. The base materials are a modified and a hydrogenated bisphenol-A type epoxy resin, and polypropylene, aluminium hydroxide and boron carbide are added. These shielding materials offer good fluidity at processing, which makes it possible to form this resin shield into complicated geometric shapes such as radioactive material shipping and storage cask. Several measurements were made for the shielding materials to evaluate the thermal and machanical properties, radiation resistance and neutron shielding ability. The neutron shielding ability of the shielding materials was revealed to be better than that of a foreign shielding material, NS-4-FR, due to higher hydrogen atomic density. Other properties of the shielding materials are as follows : onset temperatures 257-264℃, thermal conductivities 0.94-1.01W/m·K, thermal expansion coefficients 1.22-1.73×10^-6℃^-1, tensile strengths 2.4-3.2kg/mm², compressive strengths 9.7-15.2kg/mm², flexural strengths 5.5-6.4kg/mm2, macroscopic removal cross section 0.16-0.18cm-1. In general, the concerned properties of KNS-201/202 and KNS-301/302 were revealed to be better than those of NS-4-FR. It is also observed that the neutron shielding ability and radiation resistance of KNS-301/302 were better than those of KNS-201/202.