Conductive & Thermally Conductive Silicone

Functional silicone grades that shield, ground and move heat — EMI/RFI shielding gaskets, static-dissipative parts, thermal pads and gap fillers. Compounded in-house and tuned to your electrical or thermal target, for electronics, telecom, LED and EV applications.

Functional Silicone Grades

Beyond Sealing — Silicone That Conducts

Standard silicone is an electrical and thermal insulator. By loading it with the right fillers we turn it into a conductor of electricity or heat while keeping the flexibility, sealing and temperature tolerance you choose silicone for. The filler type and loading are selected against your target during DFM review — and we report the measured value, not a generic label.

  • EMI / RFI shielding — volume or surface resistivity tuned to the shield
  • Static dissipation — controlled resistivity for ESD-safe parts
  • Thermal conductivity — tuned with alumina or boron-nitride fillers
  • In-house compounding — feedstocks from suppliers including Elkem, Dow and DuPont
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Conductive and thermally conductive silicone gaskets and pads for electronics
Functional Applications

Where Conductive Silicone Fits

EMI Gaskets

Conductive gaskets that both seal and shield enclosures, connectors and chassis seams against electromagnetic interference.

Connector Seals

Conductive silicone seals for connectors that need environmental sealing plus grounding or shielding continuity.

Static-Dissipative Keypads

Keypads and buttons with controlled resistivity to protect sensitive electronics from electrostatic discharge.

Thermal Pads & Gap Fillers

Thermally conductive pads that fill gaps and move heat from components to heat sinks, enclosures or cooling surfaces.

Heat-Transfer Seals

Silicone seals for power electronics, LED modules and EV battery systems that seal and conduct heat in one part.

Grounding Pads

Conductive pads for grounding and shielding in telecom and industrial electronics assemblies.

Liquid silicone injection machine at the CYES SILICONE factory
Material & Process

Tuned to Your Target, Verified per Lot

Functional grades are compounded from global silicone feedstocks and every incoming raw-material lot is tested before production. Fillers and conductivity levels are selected against your electrical, thermal or optical target during DFM review.

  • Compression, LSR & overmolding — the right process per geometry and filler loading
  • Measured values reported — resistivity and thermal conductivity are measured, not assumed
  • Lot-to-lot consistency — controlled compounding keeps the electrical or thermal performance stable
  • Honest scoping — we confirm the achievable conductivity level for your geometry up front

The exact filler type and loading depend on your resistivity or thermal-conductivity target, the part's geometry and its service conditions — all confirmed during DFM review.

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Why CYES

Conductivity Without Guesswork

DFM for Electrical & Thermal Targets

Filler selection and loading are engineered up front so the part meets your resistivity or thermal-conductivity spec on the first shot.

Verified Incoming Materials

Every raw-material lot is tested before production, so the conductive or thermal performance you approved is what you receive.

Single Accountable Supplier

Compounding, molding and testing stay in-house — one source for the whole functional-silicone program.

Need Conductive or Thermally Conductive Silicone?

Send your drawing, electrical or thermal target and service conditions — our engineers will confirm feasibility, filler and process, and return a DFM review within 24 hours.

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