Applications

DOWSIL™ TC-2022 Thermally Conductive Silicone Adhesive

  • Technology: Thermally Conductive Silicone Adhesive
  • Brand Name: DOWSIL™ TC-2022
  • Manufacturer: Dow Chemical Company
  • Package Size: Contact Avantek for details.
  • Shelf Life: Contact Avantek for details.

1. Product Overview

DOWSIL™ TC-2022 is a one-part, thermally conductive silicone adhesive that provides high tensile strength and excellent thermal conductivity. It is heat-curable at moderate temperatures, making it suitable for bonding applications in electronic assemblies.

Key Features & Benefits:

  • Heat curable at moderate temperatures (100°C for 15 min).
  • No mixing required (one-part system).
  • Good thermal conductivity (1.7 W/m-K).
  • No added solvents for safer handling.
  • High tensile strength for strong adhesion.
  • Compatible with heat-sensitive substrates.
  • Contains 7 mil glass beads for consistent bond-line thickness.
  • Primerless adhesion to many substrates including metals, ceramics, and plastics.

2. Applications

DOWSIL™ TC-2022 is ideal for applications requiring thermal management and reliable adhesion, including:

  • Bonding integrated circuit (IC) substrates
  • Attaching heat sinks
  • Sealing lids and housings
  • Manual or automated dispensing applications in electronics

3. Typical Properties

The following table presents the key properties of DOWSIL™ TC-2022 before and after curing.

Before Cure (Uncured)

Property Unit Value
Type One-part
Color Gray
Viscosity cP / Pa·s 190,000 / 190
Thixotropy 3.7

After Cure (Cured)

Property Unit Value
Cure Time (@100°C) Minutes 15
Thermal Conductivity W/m-K 1.7
Thermal Conductivity btu/hr-ft-°F 0.98
Durometer Hardness Shore A 90
Lap Shear Strength (Aluminum) psi / MPa / N/cm² 600 / 4.1 / 410
Coefficient of Thermal Expansion (CTE) ppm/°C 125
Specific Gravity 2.7

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