news IEC 61189 Dielectric Loss Control of Polyurethane Catalyst TMR-2 in 5G Radius Application of polyurethane catalyst TMR-2 in 5G radome: IEC 61189 Dielectric loss control Preface ... 03/1926IEC 61189 Dielectric Loss Control of Polyurethane Catalyst TMR-2 in 5G Radius