The Global Liquid Thermal Sealant Market was valued at USD 1.58 Billion in 2025 and is projected to reach USD 2.31 Billion by 2034, growing at a Compound Annual Growth Rate (CAGR) of 5.8% during the forecast period (2024–2030). This growth is being driven by the rapid electrification of the automotive sector, the expansion of 5G and data center infrastructure, and the increasing demand for high-performance thermal interface materials across various electronics applications.

As industries worldwide push for greater energy efficiency and device miniaturization, the role of advanced thermal management solutions becomes critical. In this blog, we profile the Top 10 Companies in the Liquid Thermal Sealant Industry—a mix of global chemical giants and specialized material science innovators shaping the future of thermal protection and reliability.

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🔟 1. Henkel AG & Co. KGaA

Headquarters: Düsseldorf, Germany
Key Offering: LOCTITE® thermal sealants, Bergquist gap fillers, electrically insulating and thermally conductive formulations

Henkel is a global leader in adhesive technologies, and its portfolio of liquid thermal sealants is among the most comprehensive in the industry. Utilizing advanced silicone and acrylic chemistries, their products are designed for demanding applications in electric vehicles, power electronics, and telecommunications equipment.

Innovation Initiatives:

• Development of high-thermal-conductivity (>4.0 W/mK) gap-filling materials

• Strategic acquisitions, such as Bergquist, to expand thermal management capabilities

• Focus on sustainable formulations with low VOC content

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Liquid Thermal Sealant Market – View in Detailed Research Report

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9️⃣ 2. DuPont de Nemours, Inc.

Headquarters: Wilmington, Delaware, USA
Key Offering: Dow Silicones (now part of Dow Inc.), DuPont™ thermally conductive adhesives and sealants

DuPont, through its historical expertise in materials science and the legacy of Dow Silicones, offers a wide array of liquid thermal sealants. These products are critical for applications requiring long-term reliability under harsh environmental conditions, such as in automotive sensors and industrial motor drives.

Innovation Initiatives:

• Investment in next-generation silicone and polyurethane-based thermal interface materials

• Collaboration with automotive OEMs to develop customized solutions for EV battery packs

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8️⃣ 3. 3M Company

Headquarters: St. Paul, Minnesota, USA
Key Offering: 3M™ Thermally Conductive Adhesive Sealants, electronic-grade silicones

3M is a diversified technology company with a strong presence in the electronic materials sector. Its liquid thermal sealants are renowned for their reliability and are used extensively in consumer electronics, automotive electronics, and aerospace applications where precise thermal management is non-negotiable.

Innovation Initiatives:

• Pioneering filler technologies to enhance thermal conductivity without compromising electrical insulation

• Development of fast-curing formulations to improve manufacturing throughput

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7️⃣ 4. Shin-Etsu Chemical Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: Shin-Etsu Silicones, KER-2500 series thermally conductive gels and adhesives

As one of the world’s largest silicone manufacturers, Shin-Etsu brings deep expertise in polymer chemistry to the thermal sealant market. The company’s products are known for their high purity and stability, making them a preferred choice for sensitive semiconductor and display manufacturing processes.

Innovation Initiatives:

• Focus on ultra-high-purity materials for semiconductor packaging

• Expansion of production capacity for specialty silicones to meet growing demand

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6️⃣ 5. Momentive Performance Materials Inc.

Headquarters: Waterford, New York, USA
Key Offering: Silicone-based thermal interface materials, electrically insulating sealants

Momentive is a leading global silicones and specialty products manufacturer. The company’s liquid thermal sealants offer excellent thermal stability and weather resistance, catering to markets such as LED lighting, renewable energy systems, and industrial automation.

Innovation Initiatives:

• Development of products with enhanced flame retardancy for safety-critical applications

• Investment in R&D for bio-based raw material alternatives

Download FREE Sample Report:
Liquid Thermal Sealant Market – View in Detailed Research Report

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5️⃣ 6. Wacker Chemie AG

Headquarters: Munich, Germany
Key Offering: ELASTOSIL® and SEMICOSIL® thermally conductive silicone sealants

Wacker is a major player in the silicone industry, providing high-performance sealants that are essential for thermal management in power electronics, automotive control units, and solar inverters. Their products are valued for their durability and consistent performance over wide temperature ranges.

Innovation Initiatives:

• Launch of one-component, ready-to-use thermal sealants for simplified application

• Focus on products with low compression set for long-term sealing performance

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4️⃣ 7. LORD Corporation

Headquarters: Cary, North Carolina, USA (a Parker Hannifin company)
Key Offering: LORD® thermally conductive adhesives, potting compounds, and sealants

LORD Corporation, now part of Parker Hannifin, specializes in high-performance adhesives and coatings. Its liquid thermal sealants are engineered for challenging environments, including aerospace, defense, and heavy-duty industrial equipment, where vibration damping and thermal management are critical.

Innovation Initiatives:

• Integration of thermal management with vibration damping properties in multi-functional products

• Custom formulation services for specific customer application requirements

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3️⃣ 8. MG Chemicals

Headquarters: Surrey, British Columbia, Canada
Key Offering: Thermally conductive silicone compounds, epoxy potting compounds, and sealants

MG Chemicals serves the electronics manufacturing and repair markets with a broad range of chemical products. Their liquid thermal sealants are popular among designers and engineers for prototyping and production, offering a balance of performance and accessibility.

Innovation Initiatives:

• Development of user-friendly packaging and dispensing solutions for small to medium-scale users

• Expansion of product lines to include thermally conductive but electrically insulating epoxies

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2️⃣ 9. Dymax Corporation

Headquarters: Torrington, Connecticut, USA
Key Offering: Light-curable adhesives and sealants, thermally conductive grades

Dymax is recognized for its innovative light-curing technology. The company’s UV- and light-curable thermal sealants enable rapid processing on automated production lines, which is highly valued in the assembly of consumer electronics, medical devices, and optical components.

Innovation Initiatives:

• Pioneering light-cure systems that cure in shadowed areas

• Development of low-outgassing formulations for sensitive optical and electronic assemblies

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1️⃣ 10. H.B. Fuller Company

Headquarters: St. Paul, Minnesota, USA
Key Offering: Epoxy and silicone-based thermal adhesives and sealants for electronics and industrial assembly

H.B. Fuller is a leading global adhesives provider with a strong focus on engineering solutions. Their liquid thermal sealants are used across a diverse range of industries, from appliances and electronics to transportation, providing reliable thermal pathways and environmental protection.

Innovation Initiatives:

• Emphasis on developing sustainable adhesive solutions with reduced environmental impact

• Strategic focus on high-growth segments like electric mobility and renewable energy

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Liquid Thermal Sealant Market – View in Detailed Research Report

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🌍 Outlook: The Future of Liquid Thermal Sealants Is Smarter and More Integrated

The liquid thermal sealant market is undergoing a significant transformation. While traditional silicones and epoxies continue to dominate, the industry is increasingly focused on multi-functional materials that offer not just thermal conduction but also properties like stress absorption, flame retardancy, and even self-healing capabilities.

📈 Key Trends Shaping the Market:

• R&D into nano-enhanced formulations incorporating graphene and carbon nanotubes for superior thermal performance

• Growing demand for automation-compatible products with precise dispensing characteristics

• Increasing regulatory pressure driving the development of low-VOC and halogen-free formulations

• Expansion of application methods, including screen printing and jet dispensing, for high-volume manufacturing

Get Full Report Here:
Liquid Thermal Sealant Market – View in Detailed Research Report

The companies listed above are not only supplying critical materials—they are enabling the technological advancements that define modern electronics, transportation, and energy systems.