Dow Launches DOWSIL™ EG-4175 Silicone Gel to Enable Higher Voltage Power Electronics in Electric Vehicles and Renewable Energy Technologies
Dow (NYSE: Dow) launched today DOWSIL™ EG-4175 Silicone Gel, a highly reliable protective solution for next-generation insulated gate bipolar transistor (IGBT) modules that operate at higher voltages. This new advanced material resists the higher temperatures associated with these IGBTs and supports greater reliability, lower power losses and higher power efficiencies in electric vehicle (EV) batteries and inverters for photovoltaic (PV) panels and wind turbines.
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DOWSIL™ EG-4175 Silicone Gel is a protective solution, for next-generation insulated gate bipolar transistor (IGBT) modules, that withstands temperatures up to 180°C. This innovative gel from Dow supports greater reliability, lower power losses and higher power efficiencies in high-voltage power electronics for electric vehicles and renewable energy applications.
Dow’s new DOWSIL™ EG-4175 Silicone Gel withstands temperatures up to 180°C and expands Dow’s growing portfolio of solutions for power electronics. The material also absorbs vibrations and has self-healing properties that repair small cracks without external intervention. It features self-priming adhesion for enhanced module protection and cures at room temperatures for excellent energy efficiency. Heat-accelerated curing may also be used to reduce cycle times.
“Dow is upgrading our IGBT materials portfolio to address the emerging trend toward achieving higher power densities,” said Cathy Chu, global strategic marketing director, Consumer & Electronics, Dow. “With its higher-temperature resistance compared to incumbent materials, this new silicone gel will enable our customers to design and manufacture higher-density IGBT modules with greater power system efficiency. This demonstrates Dow’s commitment to advancing the EV and renewable energy sectors, both of which contribute significantly to global carbon reduction.”
The launch of DOWSIL™ EG-4175 Silicone Gel supports key trends in EVs and renewable energy. In EVs, battery voltages are increasing from 400V to 800V to enable more efficient main inverter and faster battery charging. In PV panels and wind turbines, the power densities of inverters are increasing. This improves power efficiency and supports the handling of greater electrical loads. With higher junction temperature associated with higher voltages and greater electrical loads of the 7th generation IGBT technology, a silicone gel needs to have strong dielectric properties and enhanced thermal resistance.
Dow’s portfolio of silicone-based dielectric gel products provides thermal resistance, electrical insulation, encapsulation, stress relief, and mechanical and environmental protection. The company’s advanced DOWSIL™ EG-4175 Silicone Gel builds on these properties to provide several other advantages, including high-temperature resistance, low levels of silicone oil bleed and adhesion without a primer. Gels are a special class of encapsulant that can cure to an extremely soft material while providing the dimensional stability of an elastomer.
DOWSIL™ EG-4175 Silicone Gel joins DOWSIL™ EA-7158 Adhesive, an existing product, as part of Dow’s total solution for IGBT modules. DOWSIL™ EA-7158 Adhesive is a one-part, high-strength silicone product that provides excellent primerless adhesion to many substrates. This solvent-free, non-flowing material cures rapidly with heat and is translucent in color.
Both DOWSIL™ EG-4175 Silicone Gel and DOWSIL™ EA-7158 Adhesive are available globally.
About Dow
Dow (NYSE: DOW) is one of the world’s leading materials science companies, serving customers in high-growth markets such as packaging, infrastructure, mobility and consumer applications. Our global breadth, asset integration and scale, focused innovation, leading business positions and commitment to sustainability enable us to achieve profitable growth and help deliver a sustainable future. We operate manufacturing sites in 30 countries and employ approximately 36,000 people. Dow delivered sales of approximately $43 billion in 2024. References to Dow or the Company mean Dow Inc. and its subsidiaries. Learn more about us and our ambition to be the most innovative, customer-centric, inclusive and sustainable materials science company in the world by visiting www.dow.com
View source version on businesswire.com: https://www.businesswire.com/news/home/20250904309932/en/
Contacts
For further information, please contact:
Eileen Zeng, Dow
+86 21 3851 1604
eyzeng@dow.com
Amanda Berrian, AH&M Inc.
+1 413-329-6887
aberrian@ahminc.com - asteinberg@ahminc.com
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