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Introducing: DOWSIL TC-4530 CV Gap Filler

Introducing DOWSIL TC-4530 CV Gap Filler, a groundbreaking two-part thermally conductive silicone for the modern automotive industry.

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Future mobility solutions are transforming the traditionally carbon-intensive transportation sector into a more sustainable industry. These changes have driven significant growth for the electric vehicle and e-mobility market, overseeing the deployment of new hardware in electrified vehicles such as energy storage devices, power electronics, and e-motors. Powertrain electrification requires the use of conductive materials – adhesives, gap fillers, and gels – that achieve long-term reliability, high performance, and cost-effectiveness. The new DOWSIL TC-4530 CV Gap Filler aligns perfectly with these demands and requirements. 

DOWSIL TC-4530 CV Gap Filler

The new DOWSIL TC-4530 CV Gap Filler is a soft, compressible material designed to dissipate heat from a heat source such as a printed circuit board (PCB) to the cold source heat sink. Supplied as a two-part liquid component kit that once thoroughly mixed, cures into a soft elastomer, DOWSIL TC-4530 creates reliable cooling performance in automotive modules. Thermally conductive silicones function as heat transfer media, with long-term reliable protection of sensitive circuits. The new product provides durable dielectric insulation and a barrier against environmental contaminants whilst relieving shock and vibration. The low surface tension of silicones enables them to wet most surfaces, lowering thermal contact resistance between the substrate and the material. 

DOWSIL TC-4530 Features & Benefits

  • High thermal conductivity: with a thermal conductivity of 3.0 W/m.k, DOWSIL TC-4530 efficiently dissipates heat, preventing thermal build-up in electronic modules. 
  • Low density: the gap filler boasts a low density, minimising weight and space requirements within automotive applications. 
  • Dispensable at low temperatures: designed for ease of use, this gap filler can be dispensed at low pressures, facilitating seamless integration into manufacturing processes. 
  • Dispensing equipment friendly: compatible with dispensing equipment, DOWSIL TC-4530 streamlines the assembly process, enhancing efficiency and productivity.
  • Long working time at 25℃: offering a long working time at room temperature, this gap filler allows for flexible processing and assembly. 
  • Room temperature cure, accelerated by heat: featuring a room temperature cure, the curing process can be accelerated by heat, enabling faster production cycles. 

DOWSIL TC-4530 Market Applications

DOWSIL TC-4530 is ideally suited for a wide range of high-power density applications in automotive electronics, including;

  • Converter/Inverter Onboard Battery Charger (OBC) 
  • Electronic Control Unit (ECU)
  • Battery Disconnect Unit (BDU)
  • Infotainment Systems

With exceptional thermal conductivity and versatile properties, DOWSIL TC-4530 addresses the evolving needs of the future mobility industry, particularly in the domain of electrification. As the modern automotive industry continues to pivot towards electrification, the demand for thermal management solutions will intensify. DOWSIL’s new innovation stands at the forefront of this transformation, offering unparalleled thermal conductivity, ease of use, and reliability. With the adhesive’s ability to dissipate heat and relieve stress in electronic modules, this innovative product paves the way for enhanced performance, longevity, and sustainability in automotive electronics.

Contact us

For more information regarding DOWSIL’s best-in-class range of silicone materials for the future mobility and automotive industries, click here. Or, to talk to a technical expert about the specifics of your application contact us, or call 0161 494 1345.


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