The company Graphene Star Ltd has developed a graphene shielding coating based on acrylic water dispersions and SBR. The coating does not contain metal particles, high electrical conductivity and shielding effect are provided by a high content of graphene GS-030, up to 35% by weight. Graphene can be added as a GS030P powder or as an water graphene paste GS-030W. The coating is applied to any surface with a brush or roller.
The tests of the company's shielding coating showed high efficiency: in the range of 50 MHz - 7 GHz, the signal attenuation was up to -52 DB.