Product Overview
Dowsil SE 4486 is a non-corrosive, single-component, moisture-cure silicone thermal
adhesive designed for high-performance thermal management in electronics.
Its unique formulation ensures rapid curing, low volatility, and
exceptional thermal conductivity, making it ideal for bonding
heat-sensitive components in demanding environments.
Product Introduction
SE 4486 is engineered to address critical thermal challenges in
modern electronics. As a flexible elastomer post-cure, it provides reliable stress relief and vibration
damping across a wide temperature range (-45°C to 200°C). Its controlled volatility (D4-D10 <0.002) minimizes outgassing risks, protecting
sensitive components during operation. Engineered for fast
tack-free performance, this adhesive is compatible with automated
dispensing systems, enhancing production efficiency.
Enhanced Properties
Ultra-Low Volatility: Meets stringent requirements for emissions-sensitive
applications (D4-D10 <0.002).
High Thermal Conductivity: Delivers efficient heat transfer (1.53 W/m·K at 25°C) to
dissipate heat from power devices.
Rapid Curing: Achieves tack-free surface in under 4 minutes at room
temperature, accelerating production cycles.
Mechanical Flexibility: Shore A hardness of 78 ensures shock absorption and reliability
under thermal cycling.
Electrical Insulation: Maintains dielectric integrity with a UL 94 V-0 flammability
rating.
Application Scenarios
SE 4486 is widely used in industries requiring robust thermal
management solutions:
Power Electronics: Bonding heat sinks to IGBT modules, DC-DC converters, and power
transistors.
LED Lighting: Securing LED chips to substrates while preventing thermal
runaway.
Automotive Electronics: Protecting automotive ECUs, inverters, and battery modules from
heat stress.
Consumer Electronics: Ideal for smartphone PCBs, gaming consoles, and wearable
devices.
