Silver-Coated Particles

Affordable conductivity without compromising quality

Research areas

RF & EM Shielding Innovation

High Performance Metals & Metallic Compound Research

Industries

Aerospace

Automotive

Defence Technology

RF & EM Shielding Technology

PI-KEM and PI-KEM Hart silver-coated particles comprise specially chosen core materials plated with the precious metal to provide a lower cost and lower weight alternative to pure silver.

When compared with pure silver, the advantages are:

A lower absolute density
More cost-effective
Variety of morphologies
Range of substrates

These particles are increasingly being used in applications that require electrically conductive fillers, with consistent performance. Silver-coated particles are used by a variety of industries, including:

Ceramics
Electronics
Energy
Aerospace

Silver-coated particles are known for their high quality, reliability, and performance. They are incorporated as fillers into end products such as adhesives, lacquers, coatings, lubricants, greases, and EMI shielding gaskets.

The PI-KEM and PI-KEM Hart range includes:

Silver-coated solid and hollow glass spheres
Silver-coated glass flakes, fibres and granules
Silver-coated aluminium, copper, nickel and ferrite particles
Silver-coated hollow ceramic spheres
Silver-coated silicon carbide
Silver-coated sub-10 micron particles

Each product has its own characteristics and applications.

Product Overview Table

Product	Applications	Properties
Silver-Coated Solid Glass Spheres	EMI shielding Conductive adhesives Z-axis conductive films	Sizes range from 14 to 100 microns Silver content from 2% to 40% Good conductivity Regular spherical particle shape Tightly controlled range of particle size distribution Low density compared to metal filler Spherical shape gives good flow in injection moulding Light colour
Silver-Coated Hollow Glass Spheres	Conductive paints and coatings Aerospace and other mass-critical applications Conductive adhesives Particle Image Velocimetry (PIV)	Sizes range from 13 to 44 microns Silver content from 20 to 33% Very low density Easily mixed into paint systems Crush strength > 10,000 psi
Silver-Coated Glass Flakes	EMI shielding Conductive adhesive films Conductive inks	Sizes range from 5 to 35 microns Silver content from 30% to 40% High conductivity in thin films at low loading Replacement for 100% pure silver in certain applications One third the density of pure silver
Silver-Coated Glass Fibres	EMI shielding in plastics Conductive adhesives and tapes Conductive paints and coatings	Length range from 130 to 180 microns Silver content from 8% to 20% Improves composite tensile strength Conductive at low filler loading Can be combined with spheres to reduce filler loading
Silver-Coated Glass Granules	Conductive elastomer gaskets and adhesives	Sizes range from 32 to 100 microns Silver content from 6% to 20% Reduce contact resistance as particles' sharp edges make good contact with surfaces
Silver-Coated Aluminium Particles	EMI Shielding in contact with aluminium Conductive adhesives Aerospace and marine	Sizes range from 40 to 100 microns Silver content from 5% to 30% Low density with high conductivity Low galvanic corrosion in contact with aluminium
Silver-Coated Copper Particles	EMI shielding Conductive adhesive films Conductive inks	Sizes range from 5 to 35 microns Silver content from 30% to 40% High conductivity in thin films at low loading Replacement for 100% pure silver in certain applications One third the density of pure silver
Silver-Coated Nickel Particles	EMI shielding Conductive adhesives Z-axis conductive films	Sizes range from 8 to 42 microns Silver content from 8 to 40% Stable at high temperatures Particles can be magnetically aligned Low density version (LD) has 10% less mass per volume
Silver-Coated Ferrite Particles	EMI shielding Conductive adhesives Z-axis films	Particle size 25 micron Silver content from 15% to 20% Particles can be magnetically aligned Alternative to nickel when needed Half the density of silver-coated nickel
Silver-Coated Hollow Ceramic	Conductive paints and coatings Aerospace and other mass-critical applications	Sizes range from 50 to 85 microns Silver content from 16 to 30% Low density Large particle size Easily mixed into paint systems
Silver-Coated Silicon Carbide	EMI shielding Conductive adhesive films	Sizes range from 18 to 160 microns Silver content from 4% to 30% High thermal conductivity Reduce contact resistance as particles’ sharp edges make good contact with surfaces
Silver-Coated Sub-10 Micron particles	Conductive inks and adhesives Partial replacement of pure silver powder	Sizes range from 2.5 to 8.5 microns Silver content from 10 to 40% Good conductivity Replacement for 100% pure silver Silver/glass has one third the density of pure silver Narrow particle size distribution

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Silver-Coated Particles

PI-KEM and PI-KEM Hart silver-coated particles comprise specially chosen core materials plated with the precious metal to provide a lower cost and lower weight alternative to pure silver.

Product Overview Table

Our Partners

Useful downloads

Catalogues

High Performance Metals & Metallic Compounds Research Catalogue

Silver Coated Particles

Material Specifications

Equipment Selection Guides

Need some help? Speak to our friendly and knowledgeable team today.

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