This study presents, shielding effectiveness, complex permeability, and complex permittivity of Multi-Walled Carbon Nanotube (MWCNTs) based Radiation Absorbent Material (RAM) coatings in X-Band (8- 12 GHz). This study utilized Scanning Electron Microscope (SEM) analysis. RAM coatings were developed using polyurethane dispersion and MWCNTs filler. A series network analyzer tested the prepared coating applied on glass fiber substrate and analyzed it by scanning electron microscope. Results show that shielding effectiveness, relative permittivity, and permeability increase with increased concentration of MWCNT in prepared RAM coating. The sample showed maximum shielding effectiveness with a maximum concentration of MWCNTs. This study presents a comparison between the shielding effectiveness results with different MWCNTs concentrations, which have never been done before, and it carries immense applications in the defense and aerospace sectors.

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