The Global Liquid Thermal Gap Filler Market was valued at USD 650 Million in 2024 and is projected to reach USD 1.12 Billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 7.1% during the forecast period (2025–2032). This growth is being driven by the relentless miniaturization and increasing power density of electronic components, the global surge in electric vehicle (EV) production, and the expansion of 5G and AI infrastructure demanding superior thermal management solutions.

As the electronics industry evolves toward higher performance and greater energy efficiency, the spotlight is on the advanced material science companies that enable these innovations. In this blog, we profile the Top 10 Companies in the Liquid Thermal Gap Filler Industry—a mix of chemical giants, specialty material developers, and niche innovators who are shaping the thermal interface materials (TIMs) landscape.

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🔟 10. MG Chemicals

Headquarters: Burlington, Ontario, Canada
Key Offering: Silicone-based and epoxy-based thermal gap fillers, thermal greases, potting compounds

MG Chemicals has carved out a strong position in the thermal management space, particularly with its silicone-based liquid gap fillers known for excellent thermal conductivity and ease of application. The company serves a broad industrial and consumer electronics base, providing reliable solutions for applications from LED lighting to power supplies. Their product development focuses on achieving optimal rheological properties for automated dispensing processes.

Innovation & Market Focus:

• Focus on cost-effective, high-volume manufacturing solutions.
• Strong presence in the North American aftermarket and prototyping sectors.
• Development of low-bleed formulations for enhanced long-term reliability.

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9️⃣ 9. Roartis

Headquarters: Grenoble, France
Key Offering: Specialty thermal interface materials (TIMs), including high-thermal-conductivity liquid gap fillers and thermal pastes.

A European specialist, Roartis is recognized for its high-performance thermal solutions tailored for demanding applications in aerospace, defense, and high-reliability computing. The company’s products are engineered to perform under extreme temperature cycling and harsh environmental conditions, making them a preferred supplier for mission-critical electronic systems.

Innovation & Market Focus:

• Expertise in formulations for extreme environments (-55°C to 200°C+).
• Strong R&D collaboration with European aerospace and automotive OEMs.
• Focus on low outgassing and high purity materials.

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8️⃣ 8. Sheen Electronical Technology Co., Ltd.

Headquarters: Shenzhen, China
Key Offering: Comprehensive range of silicone and non-silicone liquid gap fillers, thermal pads, and adhesives.

As a leading Chinese manufacturer, Sheen Electronical Technology is pivotal in supplying the vast Asia-Pacific electronics manufacturing ecosystem. The company offers a wide portfolio of competitively priced thermal interface materials, capturing significant market share in consumer electronics, telecommunications, and emerging EV sectors within China. Their strength lies in rapid scaling and customization to meet the specific needs of local OEMs.

Innovation & Market Focus:

• Cost-optimized solutions for high-volume electronics production.
• Rapid prototyping and formulation adjustments for Chinese OEMs.
• Expanding product lines to include higher-performance materials for 5G and EV batteries.

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7️⃣ 7. Timtronics

Headquarters: San Jose, California, USA
Key Offering: Advanced thermal interface materials, including high-conductivity liquid gap fillers and phase-change materials.

Timtronics specializes in engineered thermal solutions for the semiconductor and high-performance computing industries. Their liquid gap filler formulations are designed to address the intense thermal challenges of server CPUs, GPUs, and power modules, often featuring ceramic or boron nitride fillers for enhanced performance.

Innovation & Market Focus:

• Proprietary filler technology for thermal conductivities exceeding 8 W/mK.
• Targeted solutions for data center and AI hardware cooling.
• Close partnerships with North American chipset and server manufacturers.

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6️⃣ 6. Wacker Chemie AG

Headquarters: Munich, Germany
Key Offering: Silicone-based thermal conductive gels and liquid gap fillers (e.g., SILPURAN® and ELASTOSIL® brands).

Wacker is a global leader in silicone chemistry, and its expertise directly feeds into its high-performance thermal interface materials. The company provides the essential silicone raw materials to the industry and also formulates finished gap filler products, known for their excellent stability, dielectric properties, and wide operating temperature range, which are critical for automotive and industrial electronics.

Innovation & Market Focus:

• Vertically integrated silicone production ensures material consistency.
• Heavy investment in formulating for automotive electrification (battery packs, inverters).
• Development of solvent-free and low-VOC products for stringent environmental regulations.

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5️⃣ 5. Shin-Etsu Chemical Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: High-purity silicone-based thermal interface materials, including X-23-7762 and other legendary gap filler series.

Shin-Etsu is synonymous with quality and reliability in the silicones space. Their thermal interface materials, particularly liquid gap fillers and gels, are industry benchmarks for high-end applications. The company’s deep material science expertise allows for precise control over thermal conductivity, viscosity, and long-term stability, making their products indispensable for leading electronics manufacturers worldwide.

Innovation & Market Focus:

• Pioneering ultra-high thermal conductivity formulations (>10 W/mK) with novel fillers.
• Dominant supplier to the Japanese and global automotive electronics sector.
• Focus on materials with exceptional thermal cycling performance and low stress.

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4️⃣ 4. Momentive Performance Materials Inc.

Headquarters: Waterford, New York, USA
Key Offering: Silicone and organic polymer-based thermal management solutions under the NEXTERIAL™ and other brands.

Momentive leverages its advanced silicone and specialty chemicals portfolio to create differentiated thermal gap fillers. The company focuses on solving complex thermal challenges in electric vehicles, renewable energy systems, and industrial electronics, often developing custom formulations for specific customer applications that require a balance of thermal performance, durability, and processability.

Innovation & Market Focus:

• Advanced formulations for direct cooling of EV battery cells and power modules.
• Development of thermally conductive but electrically insulating materials for high-voltage applications.
• Strategic focus on sustainability with recyclable and bio-based material research.

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3️⃣ 3. DuPont de Nemours, Inc.

Headquarters: Wilmington, Delaware, USA
Key Offering: Broad portfolio of thermal management materials, including silicone and non-silicone gap fillers under the Bergquist, Dow (inherited), and other brands.

Following strategic acquisitions, DuPont has assembled a premier Thermal Management business. Their Bergquist brand is a powerhouse in the TIMs market, offering a wide spectrum of liquid gap fillers known for reliability and performance. DuPont’s strength lies in its application engineering support and global reach, serving virtually every electronics manufacturing vertical.

Innovation & Market Focus:

• Leadership in phase-change materials (PCMs) that bridge the gap between liquids and pads.
• Comprehensive solutions for cloud/data center thermal management.
• Sustainable product initiatives, including halogen-free and reduced-silicone formulations.

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2️⃣ 2. 3M Company

Headquarters: Saint Paul, Minnesota, USA
Key Offering: Extensive range of thermal interface materials under the 3M™ Thermal Management banner, including high-performance liquid gap fillers and gels.

3M’s innovation engine and deep understanding of customer needs have made it a dominant force in advanced materials, including thermal management. Their liquid gap fillers are trusted for critical applications in aerospace, defense, automotive, and telecommunications due to their proven performance, consistent quality, and comprehensive technical data. 3M also provides complete dispensing system solutions.

Innovation & Market Focus:

• Continuous development of filler technology for higher thermal conductivity and lower viscosity.
• Strong focus on reliability testing and data generation for automotive and aerospace qualification.
• Global manufacturing and supply chain ensures consistent availability.

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1️⃣ 1. Henkel AG & Co. KGaA

Headquarters: Düsseldorf, Germany
Key Offering: Market-leading portfolio of thermal interface materials, including the Bergquist (post-acquisition integration) and Loctite brand liquid gap fillers, gels, and adhesives.

Henkel stands at the pinnacle of the liquid thermal gap filler market through a combination of organic innovation and strategic acquisition. The integration of the Bergquist brand has created an unparalleled offering. Henkel’s solutions are meticulously engineered for the most demanding thermal challenges in high-performance computing, artificial intelligence servers, electric vehicle power trains, and 5G infrastructure, backed by world-class R&D and application engineering.

Innovation & Market Focus:

• Unmatched product portfolio breadth, from standard silicones to cutting-edge nano-filled and ceramic-based formulations.
• Deep co-engineering partnerships with top-tier semiconductor, server, and automotive OEMs.
• Heavy investment in next-generation materials for AI/ML hardware and wide-bandgap semiconductors (SiC, GaN).

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

The liquid thermal gap filler market is undergoing a profound transformation. While silicone-based materials continue to lead, the industry is rapidly innovating with novel chemistries, advanced filler technologies, and multi-functional materials to meet the exponential thermal demands of next-generation electronics.

📈 Key Trends Shaping the Market:

• Rise of Electric and Autonomous Vehicles: Creating massive, sustained demand for high-reliability gap fillers in battery packs, traction inverters, and ADAS systems.
• AI & High-Performance Computing (HPC): Driving the need for ultra-high thermal conductivity (>10 W/mK) materials to manage heat fluxes in advanced chip packaging.
• Material Science Convergence: Development of hybrid materials (e.g., phase-change, gel-pad combinations) and sustainable, non-silicone alternatives.
• Automation and Digitalization: Increasing use of automated dispensing systems and data analytics for precise, repeatable material application and performance prediction.

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

The companies profiled above are not just supplying materials—they are essential enablers of technological progress, ensuring that the electronics powering our world run cooler, faster, and more reliably.