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Special Report on Major Fumed Silica Manufacturers in China

Integrated giants (Hoshine Silicon Industry, Dongyue Organosilicon, Sanfu Chemical): These companies utilize fumed silica as a byproduct and value-adding link in the organosilicon industry chain, leveraging its advantages in cost control and supply stability. Hoshine Silicon Industry's fumed silica price in Q3 2024 was only approximately RMB 13,900/ton, making it price-competitive in the market. Specialized, deeply rooted companies (Hubei Huifu, Guangzhou Jibisheng): These companies focus on accumulating fumed nanomaterial technology and product innovation, targeting the high-end import substitution market. Hubei Huifu's products boast a purity of over 99.8%, its brand covers more than 50 countries globally, and it holds significant influence over technical standards. The competitive advantage of integrated companies like Hoshine Silicon Industry lies in scale and cost; the advantage of specialized companies like Hubei Huifu lies in technological barriers and product differentiation. These two types of companies exhibit a clear differentiated competitive landscape in their target markets and pricing strategies, and are unlikely to directly compete in the short term. Hongbai New Materials' 10,000-ton production line is already operational, with a planned 40,000-ton project. Dongyue Organosilicon's 6,500-ton production line is under construction, and new capacity is being released rapidly. This means that the supply of general-purpose fumed silica will further increase, price competition may intensify, companies with high-end product capabilities will enjoy higher profit margins, and small and medium-sized manufacturers lacking differentiated advantages will face greater survival pressure. From a price gradient perspective, hydrophobic fumed silica is much more expensive than hydrophilic products, and fumed alumina and titanium dioxide are even more expensive. Hubei Huifu's layout in the fields of hydrophobic products and fumed alumina/titanium dioxide represents the direction of industry value enhancement. Hongbai New Materials' application of its products in the field of new energy battery thermal insulation also reflects the efforts of integrated enterprises to extend to high-value-added scenarios. Hoshine Silicon Industry Co., Ltd.Hoshine Silicon Industry is a leading enterprise in my country's silicon-based new materials industry, possessing a complete industrial chain from industrial silicon to organosilicon and polysilicon. It is one of the enterprises with the most complete business chain and the largest production scale in my country's silicon industry. Fumed silica is an important extended product of its organosilicon industrial chain, mainly used to utilize chlorosilanes, a byproduct of organosilicon production, achieving a circular economy and high added value transformation. Capacity and Output: Hoshine Silicon Industry has constructed fumed silica production capacity to complement its organosilicon production capacity plan. According to the company's Q3 2024 operating data announcement:Indicators | Q3 2024 DataProduction | 10,039.84 tonsExternal Sales | 6,096.88 tonsInternal Consumption | Approximately 3,200 tonsSales Amount | RMB 84.8605 million (excluding tax)Product Price:In Q3 2024, the average selling price of fumed silica was RMB 13,918.68/ton (excluding tax), a 2.66% increase quarter-on-quarter and a significant 33.44% increase year-on-year. This price level is relatively low compared to others in the industry, reflecting the cost advantage brought by its integrated industrial chain. Hubei Huifu Nanomaterials Co., Ltd. (HIFULL)Company Overview: Hubei Huifu Nanomaterials Co., Ltd. is a national high-tech enterprise specializing in the research, development, production, and application of fumed nanomaterials. It has been selected as a national-level specialized and innovative "key small giant" enterprise and a national-level green factory. Headquartered in Yichang, Hubei Province, with R&D centers in Guangzhou and Shanghai, the company has been deeply involved in the field of fumed nanomaterials for over 20 years. Chairman Wang Yuelin is a State Council Special Allowance Expert and one of the pioneers in the industrial development of fumed silica in China, having led the formulation of several ISO international standards. Production Capacity: Hubei Huifu is currently one of the largest professional manufacturers of fumed nanomaterials in China and even globally:Products | Annual CapacityFumed Silica 40,000 tonsFumed Nano Alumina 1,000 tonsFumed Nano Titanium Dioxide 500 tons TonsTechnological Strength and Product Matrix:Hubei Huifu's technological strength is among the leading professional enterprises in China:International Standards Influence: Led the formulation of 3 international standards and multiple national standardsPatent Accumulation: Possesses 54 patented technologiesR&D Platform: Has a CNAS-certified analysis and testing center and a key laboratory for fumed nanomaterialsProduct Purity: Hydrophilic fumed silica SiO₂ content ≥99.8%Product System: Covers hydrophilic (HL-30, HL-50, HL-90, etc.), hydrophobic (HB-139, HB-152, etc.), and food-grade/pharmaceutical-grade specialty products, totaling more than 30 models Guangzhou Jibisheng Technology Industry Co., Ltd.Company Overview:Founded in 2001, Guangzhou Jibisheng Technology Industry Co., Ltd. is one of the earliest enterprises in China engaged in the industrial development of fumed silica. Founder Wang Yuelin began focusing on the fumed silica field in 1992, and in 2001 built China's largest single-unit capacity 500-ton/year fumed silica production facility. Wang Yuelin currently serves as Chairman of Hubei Huifu Nanomaterials Co., Ltd., and concurrently as Chairman of Guangzhou Jibisheng Technology Industry Co., Ltd.History and Technological Contributions: Introduced a 250-ton fumed silica plant from Ukraine and conducted technical research, achieving a breakthrough in 2004.Leaded the development of two ISO international standards, including "Fumed Silica for Silicone Rubber," and led the revision of the national standard GB/T20020-2013.Received the ISO/TC256 Outstanding Contribution Award in 2017.Market Position: According to 2022 industry analysis, Jibisheng's capacity exceeds 8,000 tons, placing it in the top tier of China's fumed silica industry. Jibisheng focuses on the R&D and production of fumed silica products, primarily used in rubber, coatings, and pharmaceuticals. Its core competitiveness lies in the resource utilization of polysilicon byproducts, achieving a circular economy. Shandong Dongyue Organosilicon Materials Co., Ltd.Shandong Dongyue Organosilicon Materials Co., Ltd. is a leading enterprise in China's organosilicon industry. Leveraging its industrial foundation in organosilicon monomers, it is actively extending its industrial chain to downstream high-value-added products such as fumed silica.Capacity Planning:According to information from December 2025, Dongyue Organosilicon is implementing an industrial chain extension and technological upgrading project. This project will utilize the company's existing self-produced trichlorosilane production capacity for external sales, dismantle idle facilities in the existing first-phase precipitated silica plant, and construct a fumed silica production unit and supporting product packaging workshop. Upon completion, the project will have a production capacity of 6,500 tons/year of fumed silica, with hydrochloric acid and sodium hypochlorite solution as byproducts.Operating Characteristics: Relatively small production capacity (6,500 tons/year), belonging to a medium-sized capacity layout.Relying on the parent company's organosilicon industry chain for supporting development.Similar to Hoshine Silicon Industry, following an "integrated industry chain" route. Jiangxi Hongbo New Materials Co., Ltd. Company Overview: Jiangxi Hongbo New Materials Co., Ltd. is an A-share listed company mainly engaged in the research, development, production and sales of silicon-based new materials such as functional silanes and nano-silicon materials. It has established long-term cooperative relationships with many large domestic and foreign tire manufacturers.Production Capacity: In 2025, Hongbo New Materials successfully built a 10,000-ton/year fumed silica production line and successfully passed trial production acceptance. Related products have been applied in fields such as new energy battery heat insulation.Larger-Scale Planning: The company is also promoting a "40,000-ton/year silicon-based new materials green circular industry chain project" with a total investment of approximately RMB 1.28 billion in Jingdezhen High-tech Zone. This project includes high-end silicon-based materials such as silane coupling agents, electronic-grade silicon micropowder, and fumed silica, and is expected to be put into production in the third quarter of 2025. This project adopts a closed-loop chlorine resource recycling and low-temperature catalytic synthesis process, reducing the unit product's comprehensive energy consumption by 28% compared to the industry average.Operational Challenges: It is worth noting that Hongbo New Materials' losses widened to 146 million yuan in 2025, with revenue decreasing by 5.9% year-on-year. Whether the fumed silica business can become a new profit growth point for the company remains to be seen. Tangshan Sanfu Silicon Industry Co., Ltd.Company Overview: Tangshan Sanfu Silicon Industry Co., Ltd. is an A-share listed company. In 2025, it achieved operating revenue of 2,096,968,200 yuan, an increase of 18.49% year-on-year, and net profit attributable to shareholders of the listed company of 80,299,000 yuan, an increase of 25.90% year-on-year.Fumed Silica Business: Sanfu's fumed silica products belong to the "Silicon Series Products" segment (including trichlorosilane, high-purity silicon tetrachloride, fumed silica, and silicon tetrachloride). In 2025, the company's total silicon product output was 61,319.17 tons, sales volume was 60,985.13 tons, and sales revenue was RMB 298.4868 million (excluding tax).Operating Characteristics: Possesses a circular economy industrial chain, with synergistic effects on materials and energy among various products. High capacity utilization rate for fumed silica, with good production and sales coordination. The overall price of its silicon product series was approximately RMB 4,894/ton (estimated based on sales revenue and volume), reflecting a product structure primarily focused on general-purpose products.

• August 05, 2026

Analysis Report on the Competitive Landscape of China's Fumed Silica Industry

A Key Node in Reshaping the Industry Landscape In 2026, China's fumed silica (fumed silica) industry is undergoing a profound structural transformation. After several years of rapid capacity expansion, the industry has moved beyond its initial extensive development phase and entered a new stage of competition driven by technological barriers, differentiated products, and import substitution. Globally, the fumed silica market reached RMB 13.2 billion (approximately USD 1.938 billion) in sales in 2025 and is projected to reach RMB 16.82 billion (approximately USD 2.474 billion) by 2032, representing a CAGR of 3.6%. China's market growth rate is significantly higher than the global average, making it the fastest-growing fumed silica market globally. The Asia-Pacific region as a whole leads the world due to expansion in industries such as electronics, automotive, and construction. Against this backdrop, competition among Chinese manufacturers has shifted from solely focusing on capacity expansion to a comprehensive contest encompassing production scale, technological strength, product structure, and market positioning. Industry concentration is rapidly increasing. II. Market Size and Growth Trend 2.1 Global and Chinese Market Size Indicators | 2025 | 2032 (Forecast) | CAGR Global Fumed Silica Market | RMB 13.2 billion / USD 1.938 billion | RMB 16.82 billion / USD 2.474 billion | 3.6% China Fumed Silica Market | RMB 5.238 billion | Growth Rate | Higher than Global 2.2 Supply and Demand Structure in the Chinese Market According to industry forecasts, China's fumed silica production is expected to reach 214,000 tons by 2026, with apparent consumption reaching 184,300 tons and exports expected to increase to 33,700 tons. The significant export growth trend indicates that Chinese companies are accelerating their integration into the global supply chain system. III. Competitive Landscape Analysis 3.1 Global Market: International Giants Still Dominate The global fumed silica market is highly concentrated, dominated by a few international giants. Evonik and Cabot are widely recognized as industry leaders, possessing extensive production capabilities and a strong global presence; Wacker Chemie and Tokuyama remain firmly in the top tier. By 2025, the top five global manufacturers will hold the vast majority of the market share. Major Chinese players are rising in the global market rankings, with Hoshine Silicon Industry and Hubei Huifu Nanomaterials already listed among the world's leading companies in industry reports. 3.2 China Market: A Dual-Track ApproachChinese fumed silica producers can be divided into two major competitive camps: The First Camp – Integrated Industry Chain Giants (represented by Hoshine Silicon Industry and Dongyue Organosilicon):These companies focus on organosilicon monomer production, with fumed silica primarily used as a byproduct and for internal applications.Their advantages lie in cost control and supply stability; some products are price-competitive in external sales.Capacity expansion is mainly accompanied by the advancement of integrated organosilicon projects. The Second Camp – Specialized Nanomaterials Companies (represented by Hubei Huifu):Focusing on the R&D and production of fumed nanopowder materials.Their core competitiveness lies in technological accumulation and product differentiation.Targeting the high-end application market, they pursue import substitution. 3.3 Key Enterprise Comparison Dimensions: Hoshine Silicon Industry (Integrated Representative) Hubei Huifu Nanomaterials (Specialized Representative) Annual Capacity: Supporting organosilicon industry chain, large scale; 40,000 tons of fumed silica (world's largest single production base) Technological Status: Integrated industry chain advantage; National-level specialized and innovative "little giant" enterprise; 52 core patents; participated in the formulation of 3 ISO international standards and 4 national standards Product Purity Standard industrial grade ≥99.8%, product purity can reach over 99.9%.Market positioning: Cost leadership, primarily internal sourcing, high-end import substitution, products cover industrial, food, and pharmaceutical grades.Product matrix: Primarily hydrophilic, including hydrophilic + hydrophobic + nano alumina + nano titanium dioxide, over 30 models.In addition, Guangzhou GBS Technology, Zhejiang Fujit Group, Jiangxi Black Cat Carbon Black, Sanfu Chemical, Jiangxi Hongbai New Materials, Shandong Dongyue Organosilicon, and other companies are also important market participants. IV. Dimensional Comparison Analysis 4.1 Capacity and OutputChina has become the world's largest producer of fumed silica. Total capacity reached 211,800 tons in 2022 and is projected to reach 288,800 tons/year by 2026. New capacity shows two major trends: first, capacity expansion mainly through integrated organosilicon projects, with products primarily for internal use; second, industrial synergy projects between specialized production enterprises and upstream raw material companies. This structure means that while the production capacity of general-purpose products is expanding rapidly, the effective supply of differentiated products remains relatively insufficient. 4.2 Technological Strength and Product Quality Domestic companies' quality and supply of hydrophilic fumed silica products have reached or are close to the level of foreign manufacturers. However, in high-end application areas—such as chemical mechanical polishing, light-diffusing materials, high-performance composite materials, and high-strength special materials—multinational corporations still dominate. Leading domestic companies such as Hubei Huifu are narrowing this gap. With independent innovation as their core, these companies have made significant breakthroughs in surface modification technology, particle size control technology, and high-purity refining technology, steadily improving key indicators such as product dispersibility, structure, and purity stability. 4.3 Price Competition and Value Differentiation The current market exhibits a clear price differentiation characteristic:* **General-purpose products:** With relatively low technological barriers, the performance of products from small and medium-sized manufacturers is converging, leading to a cycle of low-price competition and continuously compressed profit margins.* **Hydrophobic, high-purity, and customized products:** Possessing independent and stable market demand, they enjoy higher premiums.* **Hydrophobic fumed silica products are priced significantly higher than hydrophilic products, while fumed alumina and fumed titanium dioxide are priced far higher than fumed silica.** This price gradient reflects the difference in technological added value and also indicates the direction for companies to enhance their value. 4.4 Sales Volume and Market Coverage In terms of exports, Chinese companies are increasingly active. From 2019 to 2021, China's fumed silica exports increased from 18,100 tons to 20,000 tons, and are projected to reach 33,700 tons by 2026. Hubei Huifu's HIFULL® brand has been registered as a trademark in more than 40 countries, and its marketing network covers more than 50 countries and regions worldwide. Companies like Hoshine Silicon Industry and Fujit Group are also actively expanding their overseas channels. V. Development Trends and Strategic Outlook 5.1 Accelerated Import SubstitutionFor a long time, China's high-end fumed silica market has been highly dependent on imports. With technological breakthroughs by domestic companies, the localization process for high-end products is accelerating. Hubei Huifu has achieved complete self-sufficiency in the preparation and deep processing technology of fumed nanoparticle materials, and its products are gradually entering the high-end supply chain, filling the long-standing "bottleneck" problem in the domestic high-end nanomaterials field. 5.2 Differentiated Development Becomes the Main ThemeIndustry forecasts indicate that in the future, China's fumed silica industry will completely abandon the extensive development model relying on scale expansion, and build core competitiveness based on technological barriers, customized solutions, and quality stability. Specialization, refinement, and innovation have become an important path for the development of specialized enterprises. Hubei Huifu's selection as a national-level "key small giant" enterprise for specialization, refinement, and innovation reflects the policy recognition of this development direction. 5.3 Continued Expansion of Downstream ApplicationsThe application of fumed silica is extending from traditional fields such as silicone rubber and coatings to new areas such as new energy, high-end manufacturing, pharmaceuticals, and food. In particular, emerging sectors such as new energy vehicles, wind power, and green buildings are bringing new growth opportunities to fumed nanomaterials. 5.4 Increased Industry ConcentrationWith intensified price competition and rising technological barriers, many small and medium-sized manufacturers face elimination pressure. Leading companies with scale advantages, technological accumulation, and brand influence will stand out in the competition, and industry concentration and integration will rapidly increase. VI. ConclusionIn 2026, China's fumed silica industry is at a critical juncture, transitioning from "scale expansion" to "value reconstruction." The international market, dominated by giants such as Evonik, Cabot, and Wacker, will not fundamentally change in the short term, but the rise of Chinese companies cannot be ignored. Domestic competition is shifting from price wars to technology and brand wars. Specialized companies, represented by Hubei Huifu, and integrated giants, represented by Hoshine Silicon Industry, have formed two different competitive advantage paths. Companies with high-end product R&D capabilities and import substitution capabilities will enjoy higher profit margins, while those relying solely on general-purpose products and lacking differentiation capabilities will face increasing survival pressure. Over the next five years, with the continued release of domestic production capacity, accelerated import substitution of high-end products, and the deep integration of Chinese companies into the global supply chain, the global standing of China's fumed silica industry will be further enhanced, and the competitive landscape of the industry will become clearer.

• August 05, 2026

Advancement and Growth Opportunities in the Fumed Silica Industry

Fused silica is an indispensable functional nanomaterial in high-end manufacturing, with its applications expanding from traditional chemical fields to emerging sectors such as new energy, semiconductors, and pharmaceuticals. In recent years, benefiting from the booming development of downstream emerging industries, the global market size has continued to expand, showing stable growth. Currently, the global fumed silica industry is highly concentrated, with core international manufacturers occupying the majority of the market share. Domestic manufacturers have achieved continuous technological breakthroughs, leveraging their large-scale production capacity and advanced process advantages to accelerate the pace of domestic substitution. I. From Traditional Fields to Emerging Tracks: The Application Landscape of Fumed Silica is Continuously Expanding According to the "In-depth Research and Investment Prospect Forecast Report on the Current Status of China's Fumed Silica Industry (2026-2033)" published by Guanyan Report Network, fumed silica, also known as fumed silica produced by high-temperature hydrolysis of halosilanes in an oxyhydrogen flame, is an amorphous nano-silica material. Fumed silica possesses an ultra-high specific surface area and precisely controllable particle size distribution, exhibiting excellent reinforcing, thickening, thixotropic, anti-settling, and stabilizing properties. Its microscopic three-dimensional network structure can form physical cross-links in various systems, significantly improving material strength, toughness, and weather resistance, while precisely controlling rheological states and optimizing processing and performance. It is an indispensable "core additive" in many composite materials. With the rapid development of high-end manufacturing, new energy, and new materials industries, fumed silica, with its unique nanoscale physicochemical properties, is deeply penetrating emerging sectors such as new energy, electronic packaging, and biomedicine, expanding beyond traditional rubber and coating fields, showing promising market prospects. Currently, silicone rubber remains the largest application area for fumed silica, accounting for approximately 60%. II. New Energy Vehicles, Semiconductors, and 5G Drive Up Demand for Fumed Silica In recent years, with the booming development of emerging industries such as new energy vehicles, semiconductors, 5G communications, and biomedicine, the market demand for fumed silica will maintain steady growth. In the new energy vehicle sector, the demands for lightweighting, safety, and extended range have driven the demand for high-performance silicone rubber and specialty tires. Fumed silica, as a core reinforcing filler for silicone rubber, significantly improves the material's mechanical strength, flexibility, and aging resistance. Simultaneously, in the manufacturing of green radial tires, the application of supporting raw materials such as highly dispersed silica and fumed silica helps reduce rolling resistance, aligning with the industry's energy conservation and emission reduction trends. Currently, driven by favorable policies and robust market demand, the new energy vehicle industry is experiencing strong growth. Data shows that from January to May 2026, my country's production and sales of new energy vehicles reached 5.841 million and 5.802 million units respectively, representing year-on-year increases of 2.5% and 3.5%. In the semiconductor sector, the rapid iteration of advanced semiconductor processes and high-end packaging technologies has led to continuously rising industry requirements for ultra-high purity and thermal stability of packaging materials. Fumed silica is applied to chip encapsulation adhesives and potting systems, leveraging its high light transmittance, low volatility, and low impurity advantages to ensure long-term stable chip operation while simultaneously improving the thermal conductivity and mechanical properties of packaging materials. The global advanced packaging industry boasts a clear growth logic and strong growth certainty, continuously creating incremental market growth for fumed silica. Data shows that the global advanced packaging market size is projected to increase from $37.8 billion to $69.5 billion between 2023 and 2029. In the 5G communications field: The large-scale deployment of 5G coupled with the commercialization of 5G-A presents new requirements for the dielectric properties and signal transmission stability of materials in high-frequency communication scenarios. Fumed silica, as a core filler for communication cable insulation and antenna covers, can reduce high-frequency losses and meet the high-speed transmission demands of 5G. Data from the Ministry of Industry and Information Technology shows that by the end of 2025, my country had built 12.87 million mobile phone base stations, of which 4.838 million were 5G base stations, accounting for 37.6%. To further improve the breadth and depth of 5G coverage, the proportion of 5G base stations will continue to increase, further driving the demand for fumed silica. III. The global fumed silica powder market is steadily expanding, with sales expected to reach US$2.396 billion by 2031. Continued demand from downstream sectors such as new energy, semiconductors, communications, and biomedicine is driving the steady expansion of the global fumed silica powder market. Data shows that the global fumed silica powder market sales reached US$1.938 billion in 2025 and are projected to increase to US$2.396 billion by 2031, representing a compound annual growth rate (CAGR) of 3.6% from 2025 to 2031. IV. The global fumed silica market is highly concentrated, with accelerated domestic substitution. The global fumed silica industry has a high degree of market concentration, with a stable competitive landscape among leading companies. Core international manufacturers include Evonik, Cabot, Wacker, Tokuyama, Orisil, OCI Corporation, Heraeus, and Vitro Minerals. In 2025, the top five companies in the global fumed silica market are projected to hold a combined market share of 60%–70%, demonstrating a significant oligopolistic concentration in the industry. The process of domestic substitution is accelerating. Previously, the domestic supply of high-end fumed silica products was insufficient, leading to a long-term reliance on imports. High procurement costs and long supply cycles became key bottlenecks restricting the development of downstream high-end industrial chains. In recent years, relying on independent technological iteration and industrial policy support, the domestic fumed silica industry has achieved leapfrog technological breakthroughs. Many domestic companies are continuously benchmarking against international leading standards in synthesis processes, product performance, and environmental management, significantly accelerating the pace of domestic substitution in high-end fields. For example, Hubei Huifu Nanomaterials, a national-level specialized and innovative "little giant" enterprise, has overcome the geometrical difficulty of controlling particle size from 200 nanometers to 100 nanometers, achieving complete self-sufficiency in production equipment and manufacturing processes. Its hydrophilic fumed silica native particles have a particle size of only 7-40 nm, a SiO2 content ≥99.8%, and possess excellent reinforcing, thickening, and thixotropic properties. Currently, Hubei Huifu boasts an annual production capacity of 40,000 tons of fumed silica, 500 tons of fumed nano-titanium dioxide, and 1,000 tons of fumed nano-alumina, ranking among the top in the industry and fully meeting market demands from coatings, new energy, high-end manufacturing, and other fields. Hosheng Silicon Industry has achieved breakthroughs in synthesis process innovation, particularly in surface treatment technology. In 2023, the company put into operation the world's first demonstration line, employing "in-flight modification" (in-situ surface modification) technology. This technology involves injecting hexamethyldisilazane (HMDS) before the particles cool, utilizing residual heat to achieve immediate grafting of surface silanol groups. This disruptive process has increased the production efficiency of hydrophobic fumed silica by three times, solving the problem of traditional processes requiring additional processing steps that increase energy consumption by 30%, significantly improving both production capacity and economic efficiency. After years of development, Hoshine Silicon Industry has mastered the core technologies for the entire process of fumed silica (fumed white carbon black). Relying on an integrated industrial chain of "industrial silicon - organosilicon - fumed silica," it has achieved a closed-loop technology system from raw material self-supply to high-end modification. Currently, the main domestic fumed silica companies with large-scale production capabilities include: Hubei Huifu Nanomaterials, Hoshine Silicon Industry, Guangzhou Jibisheng Technology, Zhejiang Fujit Group, Jiangxi Black Cat Carbon Black, Sanfu Chemical, Jiangxi Hongbai New Materials, Shandong Dongyue Organosilicon, Xinte Energy, Emeishan Changqing New Materials, Ningxia Futai Silicon Industry, and Shouguang Changtai New Materials.

• August 05, 2026

Fumed Silica: Microparticles Driving the Development of New Materials Industry

In the field of fine chemical new materials, fumed silica has always been a highly regarded functional nanoparticle, often referred to in the industry as fumed silica. Unlike ordinary silica, it is prepared through a high-temperature flame hydrolysis process. This unique production method creates a special microstructure, endowing the material with multiple superior properties. Unique Properties Lay the Foundation for Applications Fumed silica has fine virgin particles and high surface activity, exhibiting outstanding reinforcing, thickening, thixotropic, anti-settling, and anti-sagging properties. Through surface modification, it can also be prepared into two main categories: hydrophilic and hydrophobic, suitable for vastly different production systems. When dispersed in a liquid system, it can build a reversible network structure: when stationary, it increases the viscosity of the system, preventing pigments and fillers from settling; when subjected to external stirring or application, the viscosity decreases, facilitating construction. This thixotropic property is a core advantage that makes it widely used. Simultaneously, the material exhibits excellent chemical stability and heat resistance, enabling it to adapt to various complex working environments. Applications Across Multiple Fields: Silicone Rubber and Sealants Industry: This is the primary application area for fumed silica. Added as a reinforcing filler to silicone rubber, it significantly improves the strength, tear resistance, and aging resistance of rubber products, making them flexible and durable. Various electronic sealants and building weather-resistant adhesives rely on it for stable molding, preventing flow and sagging, and ensuring sealing performance. Coatings and Ink Systems: Whether in industrial anti-corrosion coatings, architectural coatings, or printing inks, fumed silica plays a crucial role. It effectively solves the problem of filler sedimentation during coating storage, prevents paint film sagging during application, and can also control paint film gloss, improve coating wear resistance and weather resistance, and optimize the appearance and service life of the finished product. Adhesives and Composite Materials: Adding fumed silica to various epoxy adhesives, polyurethane adhesives, and UV adhesives optimizes the rheological properties of the colloid, ensuring stable dispensing and coating processes. In polymer composite materials, it can improve filler dispersion and enhance the overall mechanical properties of the product. Emerging Fields in New Energy and Electronics With the continuous development of high-end manufacturing, fumed silica is gradually entering the new energy and electronic packaging materials market. It plays a role in thermally conductive materials and insulating potting materials, leveraging its insulating and heat-resistant properties to help upgrade the performance of electronic components and new energy supporting materials. New Trends in Industry DevelopmentThe new materials industry is constantly moving towards refinement and high-end products, and the market is placing higher demands on fumed silica. The industry's R&D focus is continuously shifting towards specialized grades and easily dispersible products, developing customized modified products for different downstream industries. Domestic production technology continues to iterate, constantly promoting the localization of high-end fumed silica. From traditional chemical manufacturing to cutting-edge high-tech industries, this unassuming ultrafine powder continues to expand its application boundaries and still has broad growth potential in the future.

• August 05, 2026