Hollow glass microspheres are coated with silver metal to create highly electrically conductive surface to be used as a filler that is lighter than solid silver in paints, adhesives, and composites to provide electrical conductivity. Loadings as low as 20% by weight can achieve sufficient shielding against electromagnetic interference (EMI). Other Sliver-Coated Conductive Particles: Conductive Silver Metal Coated Microspheres.
Conductive hollow glass microspheres have low particle densities and so provide a significant weight reduction when used in place of conventional conductive fillers such as solid silver particles. A range of products offers particles with a variety of diameters, densities and crush strengths. HGMS-AG / HCMP-AG product lines were specifically designed for applications in biotechnology and as a tracer particle in Particle Image Velocimentry (PIV) which often require a true particle density higher than 1g/cm3 or just slightly lower at 0.9g/cm3. HGMS-AG product line: >90% of particles are round and spherical HCMP-AG product line: >80% of particles are round and spherical
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Properties
Categories
Conductive Microspheres
Other Properties
Light grey powder.
Electromagnetic Shielding: All of these products gave shielding of 45-55 dB at 3 GHz when incorporated at 40% by volume into an acrylic resin film of 50-100 μm thickness. M-18 conductive spheres gave shielding of 45dB at only 20% loading.