The Global Thermal Interface Gap Filler Market was valued at USD 2.87 Billion in 2024 and is projected to reach USD 5.21 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 10.5% during the forecast period (2024–2030). This robust expansion is primarily propelled by the escalating demand for efficient heat dissipation in high-performance electronics, the rapid electrification of the automotive industry, and the continuous miniaturization of electronic components driving innovation in advanced thermal management materials.

As devices become more powerful and compact, managing heat is critical for performance, reliability, and longevity. In this blog, we profile the Top 10 Companies in the Thermal Interface Gap Filler Industry—a diverse group of chemical specialists, material scientists, and engineering firms developing the next generation of thermal management solutions.

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🔟 1. Honeywell International Inc.

Headquarters: Charlotte, North Carolina, USA
Key Offering: Honeywell PTM 7950 Phase Change Materials, Thermally Conductive Gap Fillers

Honeywell is a global leader in advanced materials, offering a comprehensive portfolio of thermal interface materials. Their gap filler solutions are renowned for high thermal conductivity, excellent conformability, and reliability in demanding applications from consumer electronics to aerospace systems.

Innovation Initiatives:

• Development of phase change materials (PCMs) for automated assembly lines

• Focus on silicone-free and non-silicone thermal solutions for sensitive applications

• Investments in materials for 5G infrastructure and electric vehicle power electronics

Download FREE Sample Report: Thermal Interface Gap Filler Market – View in Detailed Research Report

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9️⃣ 2. 3M Company

Headquarters: Saint Paul, Minnesota, USA
Key Offering: 3M™ Thermal Gap Filler, Thermally Conductive Adhesives & Tapes

3M’s Electronics Materials Solutions Division provides a wide array of thermal management products. Their gap fillers are engineered to fill large gaps between heat-generating components and heat sinks, offering effective heat transfer and stress relief in assemblies.

Innovation Initiatives:

• Advanced filler technology for high thermal conductivity at lower pressures

• Sustainable material development with reduced environmental impact

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8️⃣ 3. Henkel AG & Co. KGaA

Headquarters: Düsseldorf, Germany
Key Offering: Bergquist Gap Pad®, Loctite® Thermal Interface Materials

Henkel, through its Bergquist and Loctite brands, is a dominant force in thermal management. The company offers a diverse range of gap fillers, including silicone-based and non-silicone options, catering to various performance and processing requirements.

Innovation Initiatives:

• Expansion of high-performance gap fillers for electric vehicle battery thermal management

• Development of thermally conductive but electrically insulating materials for power modules

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7️⃣ 4. Parker Hannifin Corporation

Headquarters: Cleveland, Ohio, USA
Key Offering: Chomerics Division Gap Filler Products, THERM-A-GAP™

Parker Hannifin’s Chomerics division specializes in EMI shielding and thermal management materials. Their THERM-A-GAP™ filler pads are designed to provide reliable thermal pathways in electronics enclosures, automotive systems, and telecommunications equipment.

Innovation Initiatives:

• Integration of thermal and EMI shielding functionalities in composite materials

• Custom-formulated gap fillers for specific customer application requirements

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6️⃣ 5. Dow Corning Corporation (Now part of Dow Inc.)

Headquarters: Midland, Michigan, USA
Key Offering: Dow Silicones Thermal Interface Materials, TC-系列导热填隙材料

Dow, incorporating the legacy Dow Corning silicone expertise, is a premier supplier of silicone-based thermal interface materials. Their gap fillers offer excellent thermal stability, weather resistance, and long-term reliability across extreme temperature ranges.

Innovation Initiatives:

• Focus on high-consistency rubber (HCR) gap fillers for automated dispensing

• Development of thermally conductive gels for void-free interface formation

Download FREE Sample Report: Thermal Interface Gap Filler Market – View in Detailed Research Report

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5️⃣ 6. Laird Performance Materials

Headquarters: St. Louis, Missouri, USA
Key Offering: Tflex™ Gap Filler Pads, Tputty™ Thermal Putties

Laird Performance Materials provides high-performance thermal interface materials for demanding applications. Their Tflex™ series of gap fillers are known for their high thermal conductivity, low thermal resistance, and excellent compliance.

Innovation Initiatives:

• Advanced silicone and non-silicone formulations for various gap-filling needs

• Materials engineered for high-volume manufacturing processes

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4️⃣ 7. Momentive Performance Materials Inc.

Headquarters: Waterford, New York, USA
Key Offering: Silicone-based Thermal Gap Fillers, Custom-formulated TIMs

Momentive specializes in silicone technology and offers a range of thermal interface materials. Their gap fillers provide effective heat transfer in applications requiring compensation for large tolerances and uneven surfaces.

Innovation Initiatives:

• Development of low-volatile, cure-in-place gap filler systems

• Focus on materials for renewable energy and power conversion systems

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3️⃣ 8. The Bergquist Company (A Henkel Company)

Headquarters: Chanhassen, Minnesota, USA
Key Offering: Gap Pad® VO, Hi-Flow® Gap Filler, Sil-Pad® Thermal Materials

Bergquist, now part of Henkel, has been a pioneer in thermal management for decades. Their Gap Pad® products are industry standards for filling air gaps between components and heat sinks in electronic assemblies.

Innovation Initiatives:

• Continuous improvement of thermal conductivity while maintaining softness and compliance

• Development of fiber-free gap fillers for cleanroom-sensitive applications

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2️⃣ 9. Indium Corporation

Headquarters: Clinton, New York, USA
Key Offering: Indium Corporation Gap Filler Products, THERM-A-GAP™

Indium Corporation is a materials manufacturer specializing in soldering products and thermal interface materials. Their gap filler solutions are designed to provide reliable thermal performance in power electronics, automotive, and LED lighting applications.

Innovation Initiatives:

• Advanced thermal interface material formulations combining high performance with processability

• Custom-engineered solutions for specific customer thermal challenges

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1️⃣ 10. Wakefield-Vette, Inc. (A Heico Company)

Headquarters: Laconia, New Hampshire, USA
Key Offering: Thermal Gap Pads, Thermal Putty, Phase Change Materials

Wakefield-Vette specializes in thermal management solutions, including heat sinks and thermal interface materials. Their gap filler products are designed to address various thermal management challenges across multiple industries.

Innovation Initiatives:

• Integration of thermal interface materials with heat sink designs for complete cooling solutions

• Development of materials for high-power computing and telecommunications infrastructure

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

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🌍 Outlook: The Future of Thermal Interface Gap Fillers Is Smarter and More Efficient

The thermal interface gap filler market is experiencing a technological evolution driven by the relentless demand for higher performance in smaller form factors. While traditional silicone-based gap fillers continue to dominate, the industry is rapidly advancing toward higher thermal conductivity materials, sustainable formulations, and application-specific solutions.

📈 Key Trends Shaping the Market:

• Development of gap fillers with thermal conductivity exceeding 10 W/mK for high-power applications

• Growing adoption of non-silicone gap fillers for sensitive electronic environments

• Increasing demand from electric vehicle battery thermal management systems

• Advancements in automated dispensing and application technologies for higher manufacturing efficiency

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

The companies profiled above are not just supplying materials—they’re enabling the next generation of electronic innovation by solving critical thermal challenges across industries.