Applications

DOWSIL™ TC-6011 Thermally Conductive Encapsulant

DOWSIL™ TC-6011 Thermally Conductive Encapsulant is a two‑part silicone encapsulant from the Dowsil brand designed for heat dissipation and protection in electronic assemblies.

Available Sizes: 1 kg and 5 kg cans.

Shelf Life: Approximately 36 months (3 years) from the date of manufacture.

DOWSIL™ TC-6011 Thermally Conductive Encapsulant:


1. Features & Benefits

  1. High Thermal Conductivity

    • Formulated to dissipate heat efficiently from sensitive components, helping prolong device life and reliability.
  2. Two‐Part Silicone Encapsulant

    • Mixes Part A and Part B in a specified ratio; cures to form a durable, flexible elastomer that provides both thermal management and environmental protection.
  3. Low Viscosity for Easy Flow

    • Flows around complex shapes or dense circuitry with minimal voids, ensuring uniform coverage.
  4. Strong Dielectric Properties

    • Once cured, the material provides excellent electrical insulation, which is important for high‐voltage or sensitive electronic applications.
  5. Robust Environmental Resistance

    • Resists moisture, vibration, and temperature extremes, supporting consistent performance in harsh environments.

2. Applications

  1. Power Electronics

    • Encapsulating high‐power modules, inverters, or converters to facilitate heat transfer and protect components from shock and contaminants.
  2. Automotive & Transportation

    • Helps manage heat in electric vehicle battery packs, ECUs, or other control modules exposed to wide temperature swings.
  3. LED Lighting

    • Used for LED drivers, power supplies, or other assemblies where thermal management is crucial for longevity and light output.
  4. Industrial Equipment

    • Protects motor controllers, sensors, and power distribution units operating in environments with dust, humidity, or mechanical stress.

DOWSIL™ TC-6011 Thermally Conductive Encapsulant:


Typical Properties

Property Typical Value / Range
Appearance (Mixed) Gray, flowable liquid
Viscosity (Mixed) Low to moderate (e.g., a few thousand mPa·s)
Mix Ratio (A : B) Typically 1 : 1 by weight (check datasheet)
Working Time Hours at 25 °C (varies by exact ratio/conditions)
Cure Profile e.g., 30 min at 100 °C or 24 hrs at 25 °C
Hardness (Shore A) ~40–60 (once fully cured)
Thermal Conductivity ~1.5–2.0 W/m·K (approx.)
Dielectric Strength e.g., ~20–25 kV/mm
Volume Resistivity ~10¹⁴ Ω·cm
Operating Temp. Range –40 °C to +150 °C (typical)

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