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Encapsulants & Potting Compounds

Electronic Protection Solutions

Potting & Encapsulation Compounds

Reliable insulation and environmental protection for electronics, LEDs, sensors, and power assemblies.

Potting and encapsulation materials protect and insulate electronic assemblies from moisture, shock, and vibration—extending performance life in PCBs, LED drivers, aerospace controls, and EV power modules.

Chemical Concepts supplies premium formulations from CHT, Insulcast (ITW Performance Polymers), and Shin-Etsu Silicones with options for optical clarity, thermal conductivity, fast or controlled cure, and proven compliance.

 Potting and encapsulation silicone example

Key Features & Benefits

  • Electrical Protection: High dielectric strength and volume resistivity for insulation and isolation.
  • Thermal Stability: Heat dissipation with thermally conductive grades available.
  • Environmental Resistance: Moisture, dust, salt-fog, and chemical protection.
  • Flexible & Low-Stress: Silicones minimize stress from thermal expansion and vibration.
  • UL & MIL Compliance: UL 94 HB/V-0 and MIL-I-81550C Type II options.
  • Optically Clear Grades: Transparent silicones for LEDs and sensors.
  • Process-Friendly Cures: Fast gel or extended work time to match production speed.

Common Applications

  • Electronics & Power Modules: PCB encapsulation, transformers, high-voltage supplies.
  • LED Lighting: Non-yellowing transparent grades for optical clarity and output.
  • Aerospace & Defense: Avionics, sensors, mission-critical controls.
  • Automotive & EV: Control units, battery components, vibration-prone assemblies.
  • Telecom/Outdoor: Weather-resistant potting for cabinets and antennas.
  • Renewable Energy: PV junction boxes, inverters, and power electronics.

Featured Product Lines

CHT Silicone Potting & Encapsulation

Silicone elastomers for –55 °C to 204 °C, excellent moisture/vibration protection. Clear, filled, or thermally conductive; room-temp or heat cure.

  • Key grades: QSil 214, 219, 223, 212, 217, 229, 229LV
  • Cure: Addition & condensation
  • Certs: UL 94 HB/V-0; MIL-I-81550C Type II (QSil 219)

Insulcast (ITW) Epoxies & Silicones

High-voltage and high-temperature compounds with strong mechanicals, chemical resistance, and heat dissipation.

  • Epoxies: 116FR, 987CM, 140FR
  • Silicones: –55 °C to +260 °C service range
  • Apps: EV powertrains, transformers, telecom

Shin-Etsu Encapsulants

Self-leveling silicones that cure to durable, protective rubbers for PCBs, sensors, LED assemblies.

  • SES22531-60 A/B – fast snap, vibration absorption
  • KET132 A/B – UL 94 V-0, high thermal conductivity
  • KE1204 A/B – power supplies; KE109E A/B – optically clear

Compliance & Certifications

  • UL 94 V-0, V-1, and HB ratings (brand/grade dependent)
  • MIL-I-81550C Type II (e.g., QSil 219)
  • ISO 9001 manufacturing standards
  • ASTM-tested dielectric and thermal properties

Compatible Substrates

  • Metals (aluminum, steel, copper)
  • Plastics (ABS, polycarbonate, acrylic)
  • Glass, ceramics, PCB substrates & solder masks

Packaging & Ordering

Available in dual cartridges, pails, gallons, and drums for manual or automated dispense. Custom packaging for OEM support available on request.

Need help selecting a potting compound?

Tell us viscosity, gel time, thermal needs, and substrates — we’ll match the right chemistry and packaging.

Electronic Protection Solutions

Potting & Encapsulation Compounds

Reliable insulation and environmental protection for electronics, LEDs, sensors, and power assemblies.

Potting and encapsulation materials protect and insulate electronic assemblies from moisture, shock, and vibration—extending performance life in PCBs, LED drivers, aerospace controls, and EV power modules.

Chemical Concepts supplies premium formulations from CHT, Insulcast (ITW Performance Polymers), and Shin-Etsu Silicones with options for optical clarity, thermal conductivity, fast or controlled cure, and proven compliance.

 Potting and encapsulation silicone example

Key Features & Benefits

  • Electrical Protection: High dielectric strength and volume resistivity for insulation and isolation.
  • Thermal Stability: Heat dissipation with thermally conductive grades available.
  • Environmental Resistance: Moisture, dust, salt-fog, and chemical protection.
  • Flexible & Low-Stress: Silicones minimize stress from thermal expansion and vibration.
  • UL & MIL Compliance: UL 94 HB/V-0 and MIL-I-81550C Type II options.
  • Optically Clear Grades: Transparent silicones for LEDs and sensors.
  • Process-Friendly Cures: Fast gel or extended work time to match production speed.

Common Applications

  • Electronics & Power Modules: PCB encapsulation, transformers, high-voltage supplies.
  • LED Lighting: Non-yellowing transparent grades for optical clarity and output.
  • Aerospace & Defense: Avionics, sensors, mission-critical controls.
  • Automotive & EV: Control units, battery components, vibration-prone assemblies.
  • Telecom/Outdoor: Weather-resistant potting for cabinets and antennas.
  • Renewable Energy: PV junction boxes, inverters, and power electronics.

Featured Product Lines

CHT Silicone Potting & Encapsulation

Silicone elastomers for –55 °C to 204 °C, excellent moisture/vibration protection. Clear, filled, or thermally conductive; room-temp or heat cure.

  • Key grades: QSil 214, 219, 223, 212, 217, 229, 229LV
  • Cure: Addition & condensation
  • Certs: UL 94 HB/V-0; MIL-I-81550C Type II (QSil 219)

Insulcast (ITW) Epoxies & Silicones

High-voltage and high-temperature compounds with strong mechanicals, chemical resistance, and heat dissipation.

  • Epoxies: 116FR, 987CM, 140FR
  • Silicones: –55 °C to +260 °C service range
  • Apps: EV powertrains, transformers, telecom

Shin-Etsu Encapsulants

Self-leveling silicones that cure to durable, protective rubbers for PCBs, sensors, LED assemblies.

  • SES22531-60 A/B – fast snap, vibration absorption
  • KET132 A/B – UL 94 V-0, high thermal conductivity
  • KE1204 A/B – power supplies; KE109E A/B – optically clear

Compliance & Certifications

  • UL 94 V-0, V-1, and HB ratings (brand/grade dependent)
  • MIL-I-81550C Type II (e.g., QSil 219)
  • ISO 9001 manufacturing standards
  • ASTM-tested dielectric and thermal properties

Compatible Substrates

  • Metals (aluminum, steel, copper)
  • Plastics (ABS, polycarbonate, acrylic)
  • Glass, ceramics, PCB substrates & solder masks

Packaging & Ordering

Available in dual cartridges, pails, gallons, and drums for manual or automated dispense. Custom packaging for OEM support available on request.

Need help selecting a potting compound?

Tell us viscosity, gel time, thermal needs, and substrates — we’ll match the right chemistry and packaging.

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