DOWSIL 340 Heat Sink Compound 142g Silicone Thermal Grease for Electronic Heat Dissipation

author: Nina

2026-05-26

DOWSIL 340 Heat Sink Compound is a high-performance, non-curing, silicone-based thermal interface material designed to improve heat transfer between electronic components and heat sinks. It is widely used in electronic assemblies where efficient thermal management is critical for maintaining system stability and extending component lifespan.

This product comes in a convenient 142g tube packaging, making it suitable for maintenance, repair, and small-to-medium scale industrial applications.

DOWSIL 340 is engineered to deliver reliable thermal performance under demanding conditions:

Excellent thermal conductivity for efficient heat dissipation
Non-curing and non-drying formulation, remains stable over time
Non-flowing grease-like consistency, prevents migration after application
Low bleed and low evaporation, ensures long-term stability
Wide operating temperature resistance, suitable for high-heat environments
One-component system, ready to use without mixing or curing process
High dielectric strength, safe for electronic applications

DOWSIL 340 is designed for thermal coupling in various electronic and industrial systems, including:

Power transistors, diodes, and rectifiers
Heat sinks in PCB assemblies
Power modules and control units
Industrial electronic equipment
Aerospace and automotive electronic systems
Semiconductor and power conversion devices

It is especially effective wherever heat must be transferred from a component to a metal heat sink or chassis.

Using DOWSIL 340 helps to:

Reduce operating temperatures of electronic components
Improve long-term reliability of electronic systems
Minimize thermal resistance between surfaces
Enhance heat transfer efficiency without requiring curing or heating
Maintain stable performance under continuous thermal cycling

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