High-Temperature-Resistant Organosilicon Defoamer Market Intelligence Report (May 27, 2026)

I. Recent Price Dynamics
1. Henan Kaijie Water Treatment Co., Ltd.
– 30% concentration high-temperature-resistant organosilicon defoamer: RMB 17,200 per metric ton
– 10% concentration high-temperature-resistant organosilicon defoamer: RMB 8,500 per metric ton
– Price fluctuations: Compared to the same period in 2025, prices for the 30% concentration product increased by approximately 8%, and those for the 10% concentration product rose by about 5%, primarily driven by rising costs of raw material octamethylcyclotetrasiloxane (D4).

2. Regional Price Differentials
– Quotations in Zhengzhou, Henan are generally lower than those in Jinan, Shandong; for instance, Henan Kaijie’s 30% concentration product is priced approximately RMB 1,200/ton lower than comparable products in Shandong, reflecting regional logistics cost differences.

3. Historical Price Comparison
– In 2025, the average ex-factory price of mainstream domestic solid organosilicon defoamers (silicon content: 42% ± 2%) was RMB 86,000 per metric ton. High-temperature-resistant variants—commanding significant premium due to technical barriers—maintained elevated pricing levels throughout 2026.

II. Supply-Demand Analysis
1. Supply Side
– Capacity Expansion: Leading enterprises—including Hoshine Silicon Industry and Xin’an Chemical—have commissioned dedicated production lines totaling an annual capacity of 18,000 metric tons of solid organosilicon defoamers. These lines utilize integrated fluidized-bed jet milling and surface silane coupling agent coating technologies, achieving a yield rate of 96.7%, thereby enhancing domestic substitution capability.
– Technological Upgrading: The share of polyether-modified organosilicon defoamers has increased to 35%; these exhibit superior high-temperature resistance (withstanding up to 250°C), accelerating penetration into premium market segments.

2. Demand Side
– Downstream Applications:
New Energy Batteries: Demand for high-temperature-resistant defoamers in binder and electrolyte formulations is growing at an annual rate of 22%, with customized procurement volumes expanding among industry leaders such as Contemporary Amperex Technology Co., Limited (CATL) and BYD.
Electronic Encapsulants: Rising thermal management requirements for 5G communication equipment heat-dissipation materials have driven a 18% year-on-year increase in related defoamer consumption.
Traditional Industries: Demand remains stable in coatings and papermaking sectors; however, increasingly stringent environmental regulations compel enterprises to replace VOC-containing alternatives, elevating the replacement rate of high-temperature-resistant organosilicon defoamers to 65%.
– Regional Demand: Exports to Southeast Asia, India, and the Middle East account for 46.5% of total demand, underscoring the competitive cost-performance advantage of domestically produced products.

III. Competitive Landscape
1. Leading Enterprises
– Hoshine Silicon Industry: Products from its Quzhou base maintain inter-batch d50 variation within ±0.3 μm; this technological edge enables a per-ton premium of 35–52% over standard-grade products.
– Bluestar Elkem: Certified under ISO/TS 16949 for the automotive supply chain; its top ten downstream customers collectively account for less than 35% of sales, indicating relatively strong risk resilience.
– Shandong Jinling and Guangzhou Tinci Materials: Emerging entrants are penetrating the functional customization segment by securing strategic partnerships with battery manufacturers; industry CR5 is projected to decline from 53.4% in 2025 to 47% in 2026.

2. Pricing Strategies
– Leading enterprises sustain high gross margins (42.6%) by leveraging technology-driven premiums to offset raw material cost volatility; smaller players adopt aggressive low-price strategies to gain market share—for example, Henan Huiyi Hai Environmental Protection Technology Co., Ltd. offers its 10% concentration product at as low as RMB 3,300 per metric ton.

IV. Policy and Standards Impact
1. Environmental Regulations
– The Ministry of Ecology and Environment’s “Comprehensive VOCs Control Program for Key Industries (2025 Revised Edition)” designates solid powdered defoamers as recommended VOCs source-reduction technologies. Combined with specialized subsidies from the Ministry of Industry and Information Technology (MIIT), government procurement and demonstration projects are expected to generate incremental demand of approximately RMB 210 million in 2026.
– EU REACH regulation imposes stricter limits on siloxane residue levels; domestic exporters must comply with domestic patent standards such as CN202310882345.6 governing autonomous powder preparation processes.

2. Industry Standards
– National Standard GB/T 26527–2024 specifies technical requirements for both conventional and modified organosilicon defoamers; high-temperature-resistant variants must pass thermal stability testing at 200°C, promoting standardization and regulatory compliance across the sector.

V. Future Trend Outlook
1. Price Forecast
– Short Term: Influenced by D4 price volatility (±23% in 2025), high-temperature-resistant organosilicon defoamer prices will likely remain elevated; however, leading firms’ adoption of continuous-loop ring-opening polymerization processes mitigates cost pressure, potentially constraining further price increases to within 5%.
– Long Term: With broader technology dissemination and expanded capacity, prices may moderate to the RMB 15,000–16,000 per metric ton range by 2027–2028.

2. Demand Growth
– Emerging sectors—including new energy and electronic encapsulation—are projected to drive a compound annual growth rate (CAGR) of 24%; the Chinese market size is expected to reach RMB 2.58 billion in 2026 and exceed RMB 3.5 billion by 2028.

3. Technological Directions
– Nanoscale dispersion stabilization technology and low-temperature fluidized-bed drying processes have achieved an adoption rate of 63%, improving batch-to-batch consistency; R&D on bio-based organosilicon defoamers is accelerating, with commercialization anticipated by 2027.

4. Risk Alerts
– Key risks include D4 price volatility, intensified price competition from new entrants, and escalating international trade barriers. Enterprises should prioritize technological barrier enhancement and customer concentration management to effectively navigate these challenges.