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Power Electronics
Enhancing the performance and reliability of your electronics designs
Advanced power solutions for electric vehicles
Advanced automotive power solutions are helping drive progress in electric vehicles and automotive electronics. Silicone adhesives, thermal gap fillers, gels, and elastomer solutions enable manufacturers to produce components that efficiently manage energy flow, enhance performance, and optimize overall system efficiency. Together, they are powering the e‑mobility revolution, mile after mile.
Building on decades of experience with electronic control units (ECUs) and power electronics, these material technologies can be tailored to meet demanding power‑solution performance requirements. Offering high thermal conductivity, easier processing, long‑term durability, corrosion resistance, and reliable high‑voltage insulation, these solutions support the industry’s transition toward the future of low‑carbon mobility.
Dow’s portfolio includes protective solutions designed for power electronics applications including:
Thermally conductive – Designed to maintain consistent thermal pathways, conductives help improve heat dissipation, supporting greater device reliability.
Coatings, gels, and encapsulants – These materials provide a robust barrier against moisture and contaminants, ensuring long-term performance in harsh environments.
Electronic adhesives – Formulated for strong, durable bonds, these adhesives also offer excellent thermal management properties for densely packed systems.
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POWER CONVERSION SYSTEMS
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ON-BOARD CHARGER
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E-MOTOR
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POWERTRAIN CONTROL UNITS
Power Modules/Inverters/Converters
EV power electronics systems are critical for electric vehicles to increase range and have reliable performance their lifetime. Silicones are the material of choice to handle high temperature and high voltage in harsh environment conditions that include salt spray, shock, vibration and more. Dow’s solutions can meet you where you need them the most. View our inverter and converter product range in the product catalog to discover thermally conductive adhesives and gap fillers, EMI shielding, conformal coatings and more.
Explore top silicone solutions for Power Modules/Inverters/Converters
DOWSIL™ 7091 Adhesive Sealant
Dow's high performance, neutral cure silicone adhesive/sealant - designed for applications which demand a strong but flexible bond.
SILASTIC™ RBL-9694-30P A&B Liquid Silicone Rubber
30 Shore A, two‑part, 1:1 mix ratio, dispensing liquid silicone rubber designed for heat‑cured, cure‑in‑place gasketing applications.
DOWSIL™ 3-4155 HV Dielectric Gel Kit
Two-part, 1:1 mix ratio, transparent green, room temperature or heat-accelerated cure gel intended for use in potting printed circuit board (PCB) system assemblies. DOWSIL™ 3-4155 HV Dielectric Gel Kit is a medium viscosity, very soft gel with an extended operational temperature from -65°C - 200°C.
DOWSIL™ TC-4060 Thermal Gel
Two-part, blue, 6.0 W/mK thermally conductive gap filler formulated to dissipate heat in electronics applications, such as telecom power supplies, high frequency devices (5G), and electronic control units (ECU). DOWSIL™ TC-4060 Thermal Gel is a rapid dispense product, intended for high throughput applications.
DOWSIL™ TC-2022 Thermally Conductive Adhesive
One-part, gray, 1.7 W/mK thermally conductive adhesive formulated for sealing and bonding components in electronics applications, such as integrated circuit substrates, heat sinks, and engine control units (ECU). DOWSIL™ TC-2022 Thermally Conductive Adhesive is a heat cure product with rapid cure and high tensile strength.
DOWSIL™ TC-4083 Dispensable Thermal Pad
Two-part, blue, 10.0 W/mK thermally conductive gap filler formulated to dissipate heat in electronics applications, such as telecom, high frequency devices (5G), and advanced driver assistance systems (ADAS). DOWSIL™ TC-4083 Dispensable Thermal Pad is a rapid dispense product, intended for high throughput applications.
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On-board battery charger
Dow’s proven Silicone portfolio of thermal gap fillers, adhesives, gels and silicone elastomers are used in power electronics systems like on-board chargers. In combination with our application expertise and support, we will ensure you have the right material for the application. Explore these solutions and more in the product catalog.
Explore top silicone solutions for on-board charger
DOWSIL™ TC-6040 Thermal Conductive Encapsulant
Two-part, pink, 4.0 W/mK thermally conductive encapsulant formulated to encapsulate and dissipate heat in electronics applications, such as on-board chargers (OBC), DC/DC converters for electric vehicles (EV), and other power electronics. DOWSIL™ TC-6040 Thermal Conductive Encapsulant is a heat cure product with good flowability.
DOWSIL™ TC-6032 Thermally Conductive Encapsulant
Two-part, blue, 3.2 W/mK thermally conductive encapsulant formulated to encapsulate and dissipate heat in electronics applications, such as on-board chargers (OBC), DC/DC converters, and inductors/transformers for electric vehicles (EV). DOWSIL™ TC-6032 Thermally Conductive Encapsulant is a heat cure product with good flowability.
DOWSIL™ TC-4060 Thermal Gel
Two-part, blue, 6.0 W/mK thermally conductive gap filler formulated to dissipate heat in electronics applications, such as telecom power supplies, high frequency devices (5G), and electronic control units (ECU). DOWSIL™ TC-4060 Thermal Gel is a rapid dispense product, intended for high throughput applications.
DOWSIL™ 3-1953 Conformal Coating
One-part, translucent, moisture cure conformal coating intended for use in printed circuit board assemblies (PCBA). DOWSIL™ 3-1953 Conformal Coating is a low viscosity, stress relieving, no solvent added coating that is UL, IPC, and MIL recognized.
DOWSIL™ 844 RTV Adhesive Sealant
One-part, fast cure, RTV adhesive useful in automated or manual dispensing systems for sealing of modules and multi-component assemblies; or for formed in place gasketing.
SILASTIC™ RBL-9694-30P A&B Liquid Silicone Rubber
30 Shore A, two‑part, 1:1 mix ratio, dispensing liquid silicone rubber designed for heat‑cured, cure‑in‑place gasketing applications.
E-Motor
Dow’s product range of thermally conductive adhesives and encapsulants delivers proven performance for E‑Motor applications. Designed to effectively manage heat in demanding operating environments, these materials help protect critical components, extend service life, and improve overall system durability. By enhancing thermal efficiency and reducing stress on sensitive electronics, they also support lower maintenance needs and increased reliability over time. Explore the product catalog to learn how these solutions can help optimize E‑Motor performance and support next‑generation vehicle designs.
Explore top silicone solutions for E-motor
DOWSIL™ 3-1965 Conformal Coating
One-part, transparent, moisture cure conformal coating intended for use in printed circuit board assemblies (PCBA). DOWSIL™ 3-1965 Conformal Coating is a low viscosity, stress relieving, no solvent added coating that is UL, IPC, and MIL recognized.
DOWSIL™ 3-6265 HP Adhesive
High performance version of 3-6265 adhesive, especially minimizing voids.
DOWSIL™ EA-4700 CV Adhesive
A two-part, room temperature cure adhesive enabling assembly production savings due to a fast cure at room temperature.
DOWSIL™ 1-4174 Thermally Conductive Adhesive
One-part, gray, 1.8 W/mK thermally conductive adhesive formulated for sealing and bonding components in electronics applications, such as integrated circuits, lids and housings, base plates, and heat sinks. DOWSIL™ 1-4174 Thermally Conductive Adhesive is a heat cure product and is self priming and self leveling.
DOWSIL™ TC-2035 CV Adhesive
Two-part, reddish brown, 3.3 W/mK thermally conductive adhesive formulated for sealing and bonding components in electronics applications, such as electronic control units, heat sinks, and power electronics. DOWSIL™ TC-2035 CV Adhesive is a heat cure product designed for fast manufacturing cycle times, smooth dispense, and durable adhesion.
DOWSIL™ TC-6032 Thermally Conductive Encapsulant
Two-part, blue, 3.2 W/mK thermally conductive encapsulant formulated to encapsulate and dissipate heat in electronics applications, such as on-board chargers (OBC), DC/DC converters, and inductors/transformers for electric vehicles (EV). DOWSIL™ TC-6032 Thermally Conductive Encapsulant is a heat cure product with good flowability.
Powertrain Control Units
Our innovative silicone materials play a critical role in enabling powertrain control units to achieve advancements in efficiency, safety, and sustainability. Engineered to perform in demanding automotive environments, these solutions help protect sensitive electronics, manage heat, and support long‑term reliability. Explore our range of thermally conductive adhesives and encapsulants, conformal coatings, and specialty adhesives in the product catalog to discover how they can support next‑generation powertrain control unit designs.
Explore top silicone solutions for powertrain control units
DOWSIL™ 3-6265 HP Adhesive
High performance version of 3-6265 adhesive, especially minimizing voids.
DOWSIL™ 3-1953 Conformal Coating
One-part, translucent, moisture cure conformal coating intended for use in printed circuit board assemblies (PCBA). DOWSIL™ 3-1953 Conformal Coating is a low viscosity, stress relieving, no solvent added coating that is UL, IPC, and MIL recognized.
DOWSIL™ 844 RTV Adhesive Sealant
One-part, fast cure, RTV adhesive useful in automated or manual dispensing systems for sealing of modules and multi-component assemblies; or for formed in place gasketing.
DOWSIL™ 1-4173 Thermally Conductive Adhesive
One-part gray, flowable thermally conductive adhesive with high tensile strength.
DOWSIL™ EC-8425 Electrically Conductive Adhesive
An electrically conductive adhesive for grounding, bonding and shielding interference applications with durable mechanical and conductive properties and reliable performance at high temperature and vibration.
DOWSIL™ TC-4535 CV Thermally Conductive Gap Filler
Two-part, blue, 3.4 W/mK thermally conductive gap filler formulated to dissipate heat in electronics applications, such as engine modules, transmission control units, and power electronics. DOWSIL™ TC-4535 CV Thermally Conductive Gap Filler features thixotropic characteristics that benefits processability and vertical hold stability.
Learn more about Dow’s portfolio of innovative materials
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