The global Solar Panel Sealant market was valued at USD 268.5 Million in 2023 and is projected to reach USD 512.3 Million by 2030, growing at a Compound Annual Growth Rate (CAGR) of 9.7% during the forecast period (2023–2030). This growth is being driven by the rapid expansion of solar energy installations worldwide, increasing demand for durable and weather-resistant materials in photovoltaic manufacturing, and the push toward eco-friendly sealants that enhance panel longevity and efficiency in harsh environmental conditions.

As the renewable energy sector accelerates toward widespread adoption and sustainability goals, the focus has shifted to essential components like sealants that ensure the durability and performance of solar panels. These materials protect against moisture, UV radiation, and thermal stress, directly contributing to the efficiency and lifespan of photovoltaic systems. In this blog, we profile the Top 10 Companies in the Global Solar Panel Sealant Industry—a blend of chemical giants, specialized manufacturers, and innovators pioneering advanced, environmentally friendly solutions that support the global transition to clean energy.

---

🔟 1. Evonik Industries AG

Headquarters: Essen, Germany
Key Offering: Silicone-based sealants, one-component and two-component systems for PV module encapsulation

Evonik stands out as a global leader in specialty chemicals, providing high-performance sealants tailored for solar panel applications. Their products, such as the SILRES series, offer superior adhesion and resistance to environmental stressors, serving major solar manufacturers in Europe, Asia, and North America. With a strong emphasis on innovation, Evonik’s sealants help reduce degradation rates in panels exposed to extreme weather, thereby boosting overall energy yield over decades. The company’s R&D investments focus on developing low-VOC formulations that comply with stringent international standards for sustainable manufacturing.

Sustainability Initiatives:

• Development of bio-based and recyclable sealant materials

• Partnerships with solar panel producers to optimize encapsulation processes

• Commitment to carbon-neutral production by 2040

Download FREE Sample Report: Global Solar Panel Sealant Market – View in Detailed Research Report

---

9️⃣ 2. Bostik (Arkema Group)

Headquarters: Colombes, France
Key Offering: Polymer-based sealants, structural adhesives for solar module framing and sealing

Bostik, part of the Arkema Group, excels in delivering versatile sealants that enhance the structural integrity of solar panels. Operating across more than 50 countries, the company supplies solutions used in utility-scale solar farms and residential installations alike. Their sealants are renowned for excellent UV stability and flexibility, which prevent microcracks and delamination in panels. Because of the rising demand in emerging markets, Bostik has expanded its production capabilities to meet the needs of high-volume solar assembly lines, ensuring reliable performance in diverse climatic conditions.

Sustainability Initiatives:

• Investment in water-based and solvent-free sealant technologies

• Collaboration with renewable energy associations to certify eco-friendly products

---

8️⃣ 3. H.B. Fuller Company

Headquarters: Saint Paul, Minnesota, USA
Key Offering: One-component silicone sealants, edge sealing solutions for photovoltaic modules

H.B. Fuller is a prominent player in the adhesives and sealants industry, with a dedicated portfolio for solar applications. Their products provide robust protection against ingress of moisture and contaminants, critical for maintaining panel efficiency in outdoor settings. The company serves leading solar OEMs in the Americas and Asia, leveraging advanced formulation techniques to create sealants that withstand temperatures from -40°C to 150°C. Furthermore, H.B. Fuller’s focus on process optimization helps manufacturers reduce application times and costs in assembly lines.

Sustainability Initiatives:

• Targets for 100% renewable energy in manufacturing facilities by 2030

• Supply chain partnerships for sourcing sustainable raw materials

---

7️⃣ 4. Graco Inc.

Headquarters: Minneapolis, Minnesota, USA
Key Offering: Dispensing equipment and two-component sealants for automated solar panel sealing

Graco specializes in fluid management systems, including precision dispensing for sealants in solar panel production. Their integrated solutions ensure uniform application of sealants, minimizing waste and maximizing bond strength. With a global presence, Graco supports high-throughput manufacturing in solar hubs like China and the US, where efficiency is paramount. Their equipment is designed for compatibility with various sealant types, allowing flexibility in production setups while adhering to industry standards for quality and safety.

Sustainability Initiatives:

• Goal to reduce energy consumption in dispensing systems by 20% through innovative designs

• Europe’s leading automated sealing technology for large-scale PV plants

Download FREE Sample Report: Global Solar Panel Sealant Market – View in Detailed Research Report

---

6️⃣ 5. DeepMaterial Technology

Headquarters: Shenzhen, China
Key Offering: High-transparency silicone sealants, encapsulants for bifacial solar panels

DeepMaterial is a rising star in Asia’s sealant market, offering specialized products for next-generation solar technologies. Their sealants feature high optical clarity and thermal conductivity, ideal for enhancing the performance of PERC and TOPCon cells. The company has rapidly expanded its footprint by partnering with domestic solar giants, providing solutions that improve light transmission and reduce PID (potential induced degradation). As solar deployment surges in APAC, DeepMaterial’s innovations address the need for cost-effective, high-durability materials in mass production.

Sustainability Initiatives:

• Certification for low-emission sealants compliant with REACH regulations

• Aims for net-zero supply chain emissions by 2035

---

5️⃣ 6. Kafuter (Shenzhen Xinzhongke High-Tech)

Headquarters: Shenzhen, China
Key Offering: RTV silicone sealants, weatherproofing for solar panel junctions and frames

Kafuter delivers a wide range of room-temperature vulcanizing (RTV) sealants optimized for solar applications. These products excel in adhering to glass, aluminum, and EVA layers, ensuring airtight seals that protect against corrosion and electrical failures. With operations centered in China, Kafuter supplies to over 200 solar factories annually, contributing to the region’s dominance in PV production. Their sealants are particularly valued for ease of application in automated lines, reducing labor costs while maintaining high reliability in humid and coastal environments.

Sustainability Initiatives:

• Current production of over 500 tons of eco-sealants per year

• Target expansion to 1,000 tons by 2027 with recycled content integration

---

4️⃣ 7. Hubei Huitian New Materials Co., Ltd.

Headquarters: Wuhan, China
Key Offering: Polyurethane and silicone hybrid sealants for industrial-scale solar installations

Hubei Huitian plays a crucial role in China’s solar supply chain, providing hybrid sealants that combine the flexibility of silicones with the strength of polyurethanes. These materials are essential for sealing large-format modules used in ground-mounted arrays. The company’s R&D efforts emphasize formulations that resist yellowing and cracking under prolonged UV exposure, supporting panels with 25+ year warranties. By focusing on local innovation, Huitian helps lower import dependencies and accelerates the deployment of affordable solar energy across Asia.

Sustainability Initiatives:

• Local R&D programs for bio-derived sealants under national green tech initiatives

• Collaborations with universities for sustainable polymer development

---

3️⃣ 8. Chengdu Guibao Science & Technology Co., Ltd.

Headquarters: Chengdu, China
Key Offering: One-component neutral cure sealants for solar panel edge protection

Chengdu Guibao is a key supplier in the Chinese market, known for neutral-cure silicones that avoid corrosion in sensitive PV components. Their products are widely used in module lamination processes, offering excellent dielectric properties and thermal expansion matching. With a production capacity exceeding 10,000 tons annually, the company supports the explosive growth of solar manufacturing in Sichuan and beyond. However, geopolitical factors influence their global reach, prompting investments in export-compliant formulations.

Sustainability Initiatives:

• Indigenous research into low-global-warming-potential sealants

• Government-backed projects to scale production of recyclable materials

---

2️⃣ 9. Guangzhou Baiyun Chemical Industry Co., Ltd.

Headquarters: Guangzhou, China
Key Offering: Two-component epoxy-silicone sealants for high-efficiency solar modules

Guangzhou Baiyun Chemical specializes in advanced two-component systems that provide superior bonding in multi-layer solar constructions. Their sealants are engineered for high humidity resistance, making them ideal for Southeast Asian and coastal deployments. The company has built a reputation for quality through ISO-certified facilities, supplying to exporters who distribute worldwide. Their ongoing developments in faster-cure formulas help streamline production, aligning with the industry’s shift toward gigafactory-scale operations.

Sustainability Initiatives:

• Expansion to produce 800 tons/year of low-VOC sealants

• Supply chain enhancements for sustainable sourcing in PV ecosystems

---

1️⃣ 10. Jiangsu Tiansheng New Material Technology Co., Ltd.

Headquarters: Nanjing, China
Key Offering: Specialized sealants for thin-film and crystalline silicon solar panels, including distribution logistics

Jiangsu Tiansheng leads in customized sealant solutions, supporting over 150 solar operators with end-to-end application support. Their portfolio includes UV-curable and thermally stable options that integrate seamlessly into automated assembly. As a logistics-savvy provider, the company ensures timely delivery to global hubs, facilitating the growth of off-grid and rooftop solar systems. Their focus on compatibility with emerging cell technologies positions them at the forefront of the market’s evolution.

Sustainability Initiatives:

• Comprehensive solutions for circular economy in solar waste management

• Strategic alliances with panel recyclers and green certification bodies

Read Full Report: Global Solar Panel Sealant Market – View in Detailed Research Report

---

🌍 Outlook: The Future of Solar Panel Sealants Is More Durable and Eco-Friendly

The global solar panel sealant market is experiencing transformative growth as solar energy becomes a cornerstone of the renewable transition. While traditional silicones remain prevalent, investments are pouring into advanced, sustainable alternatives that extend panel lifespans and minimize environmental impact. This shift is fueled by regulatory pressures, technological advancements in PV efficiency, and the need for materials that support net-zero ambitions.

Looking ahead, the market will see innovations in biodegradable polymers, self-healing sealants, and nanotechnology integrations that further protect against degradation. These developments not only enhance performance but also align with circular economy principles, allowing for easier end-of-life recycling of solar modules.

📈 Key Trends Shaping the Market:

• Expansion of sealant production capacities in Asia-Pacific, Europe, and North America to meet surging PV demand

• Regulatory mandates for low-emission and recyclable materials in solar manufacturing by 2030

• Digital tools for sealant application optimization and quality control in factories

• Collaborations between sealant suppliers, panel makers, and governments for sustainable solar ecosystems

Read Full Report: Global Solar Panel Sealant Market – View in Detailed Research Report

The companies profiled here are not only sealing the edges of solar panels—they are fortifying the foundation of a cleaner, more reliable global energy future.