The ElectroClad™ line, provided by Progressive Fillers, consists of high-performance electrically conductive additives all designed for light weight, high conductivity and high performance. The ElectroClad™ products are widely used across numerous industries, including electronics, solar cells, medical devices, aerospace, elastomers, adhesives, coatings, and automotive components. These premium conductive fillers are specifically engineered for polymers, delivering consistent, long-lasting electrical performance in demanding applications with affordability in mind. Renowned for their unique properties and superior quality, ElectroClad™ products are readily available in all volume quantities to meet diverse customer needs.
Other ElectroClad™ applications include Conductive films, Pastes, EMI/RFI Shielding micro applications, Conductive / Shield Flooring, Antistatic carpet, Aerospace, electrically conductive polymers and Adhesives, Coatings, Sealants, Caulks, Composites, Reinforced polymers, Cu, Ag, Pd electronic pastes, Ceramic/metal joints, Thermal electrical applications.
As we know traditional nuclear reactors already contain large conductive materials, but “new AI reactors” emphasize efficiency, modularity (e.g., small modular reactors or SMRs), and AI-optimized materials to meet net-zero goals. This is where our light weight Electroclad conductive additives— with high electrical/thermal conductivity—play a key role.
Our Electroclad’s enhance reactor performance by improving heat transfer, electrical efficiency, and material durability. In advanced designs like molten salt reactors (MSRs) or fusion prototypes, they address challenges like extreme temperatures (up to 800°C) and neutron bombardment, which degrade standard materials.
Nuclear reactors generate immense heat, and poor dissipation risks meltdowns or inefficiency. Electroclad like the spherical CSGS 7-10A are mixed into composites for heat exchangers and coolants boosting thermal conductivity by 20-50% in polymer matrices, enabling faster heat extraction
Typically core-shell structures with a non-conductive core (e.g. CSGS 7 A or 10A) infused by a thin silver (Ag) infused layer (10–500 nm)—offer unique properties addressing fission product containment and neutron absorption in SMR’s. In AI-driven electronics, they excel in thermal management for high-heat GPUs/TPUs.
Harsh environments demand conductive, corrosion-resistant Electroclads.
Our CFC line of silver infused fibers elevate coatings from basic protection to smart, multifunctional systems—delivering conductivity, antimicrobial action, thermal control, and strength.
They enhance electrical, thermal, optical, and mechanical properties while leveraging curing speed and eco-friendliness. Silver’s high conductivity (~6.3 × 10^7 S/m) forms percolating networks at low loadings (5–10 vol%), enabling electron flow without full heavy metallic density.
Silver reflects IR (>90% at 800–2500 nm) and UV rays, while the engineered fibers provide structural reinforcement.
In aeronautical composites and coatings, the Electroclad additives provide EMI shielding, lightning strike protection (LSP), and static dissipation—with lower density and better dispersion than solid metal powders.
The high aspect- ratio geometry and our flat, spherical and fibrous lightweight and corrosion free additives deliver high conductivity and low percolation, They are ideal for sprayable EMI coatings, secondary LSP, and ESD primers in CFRP aircraft—balancing performance, weight, and processability.
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What is ElectroClad™ and what makes it different from pure silver fillers?
ElectroClad™ is a line of silver-infused conductive additives manufactured by Progressive Fillers & Additives International since 1994. Unlike pure silver fillers, ElectroClad™ products use engineered core-shell structures — a non-conductive base (glass sphere, mica flake, or fiber) coated with a thin silver (Ag) layer of 10–500 nm — delivering the electrical conductivity of solid silver at a fraction of the cost. The result is a lightweight, corrosion-resistant filler with dry bulk resistivity as low as .001 ohms/cm.
What are the ElectroClad™ product variants?
ElectroClad™ includes four primary variants: Ag Solid Sphere (CSGS™) — silver-coated glass spheres with .001 ohms/cm resistivity, ideal for conductive films and circuit boards; MicaClad Ag 100 (CSM100™) — silver mica platelets with .002 ohms/cm resistivity for blanketing-effect EMI shielding; Ag FiberClad (CFC™) — conductive microfibers adjustable in specific gravity and density, blendable into paints and coatings of any color; and Ag Hollow Sphere (CHS™) — ultra-low-density hollow silver spheres with crush strength greater than 8,000 psi and .001 ohms/cm resistivity.
What industries use ElectroClad™ conductive additives?
ElectroClad™ additives are used across electronics, aerospace, automotive, medical devices, solar cells, and advanced nuclear applications. Specific applications include EMI/RFI shielding, conductive flooring and antistatic carpet, lightning strike protection (LSP) for CFRP aircraft, ESD primers and coatings, conductive adhesives and sealants, ceramic-metal joints, and thermal management composites for high-heat GPU/TPU systems and small modular reactors (SMRs).
What is the best ElectroClad™ product for EMI/RFI shielding in polymers?
For EMI/RFI shielding in polymer matrices, MicaClad Ag 100 (CSM100™) is often preferred due to its platelet geometry, which creates an overlapping “blanketing effect” that maximizes shielding coverage. The Ag Solid Sphere (CSGS™) is recommended when impact strength improvement is also required. Both achieve percolating conductive networks at low loadings of 5–10 vol%, enabling effective shielding without the weight penalty of solid metal powders.
What are silver-coated conductive glass spheres used for?
ElectroClad™ Ag Solid Spheres (CSGS™) are silver-coated glass spheres with a dry bulk resistivity of .001 ohms/cm. They are used in conductive films, circuit board applications, electronic pastes (Cu, Ag, Pd), conductive adhesives and composites, reinforced polymer systems, and thermal-electrical applications. Their spherical geometry improves rheology in paste systems and physically improves impact strength in polymer matrices compared to flake-based fillers.
Can ElectroClad™ be used in coatings and paints of any color?
Yes. The Ag FiberClad (CFC™) is specifically engineered to solve the industrial problem of dark coloration in conductive coatings. These silver-infused microfibers blend into UV-cured, water-based, and spray coatings in any color while delivering full conductivity or antistatic performance. Specific gravity and fiber dimensions can be customized per project, giving formulators full control over weight, processing, and cost targets.
How does ElectroClad™ perform in aerospace and aeronautical applications?
In aeronautical composites, ElectroClad™ additives provide EMI shielding, lightning strike protection (LSP), and static dissipation with lower density and better dispersion than solid metal powders. The high aspect-ratio geometry of fiber variants and the low percolation threshold of spherical variants make them ideal for sprayable EMI coatings, secondary LSP layers, and ESD primers on carbon fiber reinforced polymer (CFRP) aircraft structures. Silver reflects IR radiation above 90% in the 800–2500 nm range, adding thermal management capability.
What is the conductivity advantage of silver over other conductive fillers?
Silver has an electrical conductivity of approximately 6.3 × 107 S/m — the highest of any metal — and uniquely, silver oxide remains conductive unlike copper oxide or aluminum oxide. ElectroClad™ leverages this by depositing a thin silver layer over low-cost substrates (glass, mica, fiber), creating fillers that form percolating conductive networks at low volume loadings of 5–10 vol% while resisting oxidation-related conductivity loss over time. This outperforms nickel, copper, or aluminum-based alternatives in long-term stability.
How does ElectroClad™ support thermal management in advanced electronics?
ElectroClad™ CSGS spheres, when mixed into polymer composites and heat exchangers, can boost thermal conductivity by 20–50% in polymer matrices, enabling faster heat extraction in high-density electronics. This applies to thermal management in GPU/TPU cooling systems, AI computing hardware, and advanced nuclear designs including small modular reactors (SMRs) and molten salt reactors (MSRs) operating at temperatures up to 800°C.
What is the crush strength and density profile of ElectroClad™ hollow spheres?
The Ag Hollow Sphere (CHS™) is engineered for very low density while maintaining a crush strength greater than 8,000 psi and a low bulk resistivity of .001 ohms/cm. This combination makes CHS™ the preferred choice for weight-sensitive conductive applications such as aerospace composites, buoyancy-critical coatings, and lightweight EMI shielding where solid glass spheres would add unacceptable mass.
Progressive Fillers Int’l inc ‘s Conductive Silver Glass Spheres (CSGS) is a highly conductive silver sphere with a dry bulk resistivity of .001 ohms/cm. The CSGS line not only improves compatibility with conductive film and circuit board applications but physically improves impact strength.
Micaclad Conductive Silver Flakes (CSM100) is a highly conductive silver mica with a dry bulk resistivity of .002 ohms/cm. These pure silver platelets have the shielding and conductive properties of solid metal silver with a fraction of the cost. The blanketing effect of silver and the reinforcement advantages of the mineral help provide strength and a stable conductive surface.
Progressive Fillers International offers a solution to the industrial standard dark color of conductive and anti-stat applications by offering our Ag FiberClad. These unique conductive microfibers can be blended into a variety of paints, coatings in any color to create a bright fully conductive or Anti Stat surface. Blending well in UV and water based coatings and sprays delivering a fully conductive application. The Ag FiberClad can be adjusted in both specific gravity and density to fit the project. Having full control – designing the weight, dimensions and over all parameters of the fiber, gives the customer full control over their original design and cost.
Progressive Fillers Int’l inc ‘s Conductive Hollow Glass Spheres (CHS) is a very low density highly conductive hollow silver sphere with a crush strength of > 8,000 psi. The CHS is engineered to resist oxidation and cost effectively improve conductive applications, with its stable performance and low resistivity of .001 it is easily combined with a variety of applications including paint and coatings.
Optimum heat resistance. As used in the AL-TOOL™ in our Specialty Additives, the Micaclad Aluminum is designed to give optimum resistance to heat, fatigue and distortion of vacuum form tooling surfaces
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2404 East 28TH Street Chattanooga, TN 37407
Phone: (423) 629-0007
E-MAIL: support@pfillers.com
Progressive Fillers & Additives International delivers high-performance mineral and conductive technologies for advanced plastics and coatings applications. Innovation engineered in Chattanooga, TN.
