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Explore our core silicone oil product range engineered for superior heat transfer performance, exceptional thermal stability, and long service life across demanding industrial environments.
Silicone oil (polydimethylsiloxane, PDMS) is the benchmark fluid for industrial heat transfer — combining an operating range of −60°C to +300°C, chemical inertness, and zero water contamination risk into a single, versatile medium.
Silicone oils are synthetic polysiloxane fluids built on a Si–O backbone. Their unique molecular architecture delivers extraordinary thermal stability, low viscosity variation with temperature, and inherent flame resistance. Unlike mineral oils or glycol-based fluids, silicone oils do not oxidize, polymerize, or form corrosive by-products under sustained high-temperature operation — making them the preferred choice for closed-loop thermal management systems worldwide.
The thermal conductivity of silicone oil (approximately 0.15–0.20 W/m·K) is complemented by its high specific heat capacity and excellent film stability on metal surfaces. These properties enable efficient heat absorption and release across heat exchangers, jacketed reactors, and immersion cooling modules. The fluid's non-corrosive nature extends equipment lifespan significantly, reducing total cost of ownership in continuous manufacturing operations.
The global silicone heat transfer fluid market was valued at over USD 1.2 billion in 2023 and is projected to grow at a CAGR of 6.8% through 2030, driven by expanding semiconductor fabrication, EV battery thermal management, and concentrated solar power (CSP) installations. Asia-Pacific accounts for the fastest growth, with China, South Korea, and Japan leading demand for ultra-pure silicone fluids in electronics manufacturing.
Stricter environmental regulations are accelerating the replacement of petroleum-based thermal oils with silicone alternatives. Silicone oils produce no toxic degradation products, have negligible vapor pressure at operating temperatures, and are compatible with EPDM and PTFE seals. Industries including pharmaceuticals, food processing, and specialty chemicals increasingly mandate silicone-based heat transfer fluids to meet GMP and FDA compliance requirements.
Bayee's silicone oils for heat transfer are formulated to deliver consistent, reliable performance across the most demanding thermal cycles and process conditions.
Stable operation from −60°C to +300°C in continuous service, with short-term peaks up to 350°C. Maintains flowability at sub-zero temperatures without additives, eliminating cold-start risks in outdoor installations.
The Si–O–Si backbone resists oxidative and thermal degradation far beyond organic fluids. Service life exceeds 10,000 operating hours in properly designed closed systems, dramatically reducing fluid replacement costs and system downtime.
Non-toxic, non-corrosive, and non-reactive with most metals, plastics, and elastomers. High flash point (>300°C) and low flammability make silicone oil significantly safer than mineral oil alternatives in high-temperature processing environments.
Silicone oil maintains a relatively flat viscosity-temperature curve compared to hydrocarbon oils. This ensures consistent pump performance, predictable flow rates, and uniform heat distribution across the entire operating temperature range.
Low ecotoxicity profile and biodegradable degradation pathway compared to halogenated thermal fluids. Compliant with REACH, RoHS, and international chemical safety standards, supporting corporate sustainability targets and regulatory compliance.
Compatible with stainless steel, carbon steel, copper, aluminum, and most engineering polymers. Excellent lubricity reduces pump and valve wear, while low surface tension ensures complete wetting of heat exchanger surfaces for maximum thermal efficiency.
From cutting-edge electronics cooling to large-scale renewable energy, silicone oil enables precise thermal control across a diverse spectrum of critical industries.
Ultra-pure silicone dielectric fluids enable single-phase and two-phase immersion cooling for data center servers, ASIC miners, and power electronics — achieving PUE values below 1.03 while eliminating traditional air cooling infrastructure.
Silicone oil-based liquid cooling plates and immersion modules regulate lithium-ion battery pack temperatures within the optimal 20–40°C window, extending cycle life by up to 30% and enabling faster DC fast-charging protocols.
High-temperature silicone fluids serve as heat transfer media in parabolic trough and linear Fresnel CSP collectors, operating at 250–300°C to transfer thermal energy to steam turbines for utility-scale electricity generation.
Silicone oils meet FDA 21 CFR and EU GMP requirements for use in jacketed reactor heating/cooling systems in API synthesis, lyophilization, and sterile manufacturing — eliminating cross-contamination risks from fluid leaks.
Food-grade silicone heat transfer fluids are used in chocolate tempering, confectionery molding, and bakery oven thermal oil systems where direct or indirect contact with food products demands the highest purity standards.
Precise temperature control in exothermic and endothermic chemical reactions using silicone oil-circulated jackets ensures consistent product quality, prevents thermal runaway, and supports safe scale-up from lab to production.
Silicone thermal fluids are used in environmental simulation chambers, avionics thermal cycling tests, and satellite thermal vacuum testing — where the extreme temperature range and non-outgassing properties are mission-critical.
Mold temperature controllers using silicone heat transfer oil deliver precise, uniform heating for injection molding, extrusion, and vulcanization processes, improving dimensional accuracy and reducing cycle times in high-volume production.
The silicone oil heat transfer industry is undergoing rapid transformation driven by digitalization, decarbonization, and next-generation manufacturing demands.
Machine learning algorithms are being integrated with silicone oil-based cooling loops to predict thermal loads, dynamically adjust flow rates, and preemptively schedule fluid maintenance — reducing energy consumption by 15–25% in large-scale industrial plants and hyperscale data centers.
Solid-state battery development and 800V fast-charging architectures demand silicone fluids with even tighter viscosity specifications and enhanced dielectric strength. R&D investment in nano-enhanced silicone thermal fluids is accelerating, targeting thermal conductivity improvements of 20–40% over baseline PDMS.
Leading silicone producers are exploring bio-sourced silicon feedstocks and closed-loop recycling programs for spent thermal fluids. Life cycle assessment (LCA) tools are increasingly used to quantify the carbon footprint of silicone oil versus alternative heat transfer media, supporting ESG reporting.
The shift toward modular process equipment is driving demand for standardized silicone oil thermal management skids that can be rapidly deployed and scaled. This trend benefits specialty chemical exporters like Bayee who can supply consistent-quality bulk fluids to global system integrators.
Advanced node semiconductor fabs (3nm and below) require heat transfer fluids with sub-ppb metallic impurity levels. This is driving the development of ultra-purified silicone oils with enhanced particle filtration and certification to SEMI standards, creating a premium market segment with high barriers to entry.
Southeast Asia, India, and the Middle East are emerging as high-growth markets for industrial silicone heat transfer fluids, fueled by rapid industrialization, pharmaceutical sector growth, and large-scale solar energy projects. Local distribution partnerships and technical service capabilities are becoming key competitive differentiators.
Hangzhou Bayee Chemical Co., Ltd. started chemical products exporting from 2001, manufacturers based exporter focused in chemical products covering Silicone series, Phosphorus series including Silicone Monomers, Cyclosiloxane, Silicone Oils, Agro Chemicals, Fire Retardants & Auxiliaries etc. Company has direct Import & Export right, Dangerous Cargo Permission Certificate.
Based on 20+ years exporting history and persistent improvements, we have now grown and developed into a well known & good reputation exporter with ISO 9001:2015, AAA Credit certified company, also granted by local government as Healthy Enterprise, and A level Tax Ranking.
Based on strategic factories in Zhejiang, Jiangsu, Shandong, Anhui, Jiangxi, Hubei, Hunan, Hebei and Henan provinces etc, we export not only good quality products, competitive EXW costs, but also honesty, safety and international philosophies to customers. We work tightly with competitive production sites across whole China, who have special advantages, located in professional industrial areas, close to raw material bases, locally supplied with energy - gas or steam pipe connected with neighbour enterprises in same areas to reduce transportation costs.
Our factories have advanced ideas in technique crafts for higher yield production, unit consumption reducing from raw materials, also re-used the by-products for own downstream production for other products. By the way, we always keep close observation about raw material changing trend, react actively with factories shoulder by shoulder from organizing raw material at good times to secure more competitive production costs and share spaces with customers helping win their market shares. At the same time, we have wide connection with Chinese powerful chemical institute organizations for testing and supervising quality control in production process.
Up till now we've developed and supplied to many countries and areas all over the world, with main markets in European countries (Germany, Italy, UK, Spain, Ukraine, Russia, Poland, etc.), USA, South America, Mid East, South-east Asia, Australia, etc. Also seeking more strategic partners and customers under mutual benefits and work through the whole purchasing chain.
Bayee offers a comprehensive portfolio of silicone oil variants to meet diverse thermal management requirements across industries worldwide.
OH-Hydroxy, Terminated Silicone Fluid
Vinyl Silicone Oil CAS Number: 70900-21-0
Methyl Hydrogen Silicone Fluid (MH Fluid)
Hydrogen-terminated Silicone Oil
BY-209 Amino-modified Silicone Fluid
High-Stability Silicone Fluid for Thermal Systems
MH Fluid for Industrial Heat Transfer Loops
Vinyl Silicone Oil for Reactor Cooling Applications
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