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Thermal Management

DOWSIL™ TC-6011 – Thermally Conductive Encapsulant – Electronic component protection and heat management applications

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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BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

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