In the fields of high-end industrial equipment, precision instruments, aerospace, and new energy equipment manufacturing, problems such as narrow temperature range, rapid deterioration at high temperatures, easy solidification at low temperatures, and poor oxidation resistance have long plagued high-temperature lubrication, insulation protection, damping and vibration prevention, and heat conduction media. Traditional methyl silicone oil has insufficient high-temperature resistance, the cost of ordinary imported single-benzene phenyl silicone oil is high, and the supply cycle is long, making it difficult to meet the large-scale, high-performance production demands of domestic extreme conditions. Product 255B high-temperature phenyl silicone oil, relying on the mature domestic dual-benzene process route, has completed technological iteration and upgrade. With its wide temperature range, high heat resistance, low-temperature resistance, excellent lubrication, and radiation resistance, it has become the most versatile and widely used high-end phenyl silicone oil product in the current market, benchmarking against international imported similar silicone oil products, and accelerating the domestic substitution of high-end industrial lubricating media.
Product 255B high-temperature phenyl silicone oil is a pure methyl phenyl structure modified silicone oil. Its appearance is colorless and transparent liquid. Modern refined processing has completely improved the problem of yellowish impurities in traditional products, with higher purity and more stable system. The core physical and chemical parameter specifications are rich and highly adaptable. The 25°C kinematic viscosity can be customized within a wide range of 75~1400 cst. There is an adequate supply of mainstream 50–1000 cst regular viscosity on the market, and special working conditions viscosity can be customized as needed. The 25°C relative density is stable within the range of 1.02~1.10, and the density is precisely controlled by the benzene content, with a dense structure and uniform performance. The open cup flash point is ≥ 300℃, ensuring extremely high safety in high-temperature use, significantly reducing the risk of fire and volatile loss of high-temperature equipment. The standard working temperature condensation point is ≤ -40℃, and through formula optimization, it can achieve -120℃ ultra-low temperature without solidification, with excellent low-temperature flow performance. The refractive index range covers 1.4800~1.5150, which can be adjusted to a wide range of 1.41–1.54 according to customer needs, suitable for multiple scenarios such as optics, damping, and precise lubrication.
Different from the mainstream single-benzene structure phenyl silicone oil in Europe and America, Product 255B adopts the mature domestic original Soviet dual-benzene synthesis process. It is currently the largest-selling and most recognized phenyl silicone oil category in China. In the industry's long-term perception, single-benzene structure products from Europe and America have high application popularity, but they also have shortcomings such as expensive raw materials, limited supply, and average high-temperature stability. However, Product 255B, with its domestic modern fine chemical equipment iteration upgrade, has achieved a significant improvement in high-temperature thermal stability, and is not prone to cracking, carbon deposition, or oxidation deterioration at temperatures above 300℃, perfectly adapting to various high-temperature continuous production equipment. At the same time, the domestic process significantly reduces production costs, with performance remaining the same and higher high-temperature performance, and the cost is far higher than that of imported similar products, significantly reducing the operating costs of industrial enterprises. In terms of core performance, Product 255B high-temperature phenyl silicone oil has extremely strong comprehensive working condition adaptability. Its working temperature range covers an extremely wide range of -120℃ to 320℃, with the standard regular working temperature being -60℃ to 320℃, perfectly balancing extreme cold start-up and long-term high-temperature operation conditions. The product has excellent thermal stability, oxidation resistance, and water stability. It is not prone to oxidation gelation or volatile loss in a high-temperature environment, and is not absorbed by moisture, emulsified, or deteriorated in a humid environment. The equipment operation stability is extremely strong. It possesses outstanding lubricating properties, radiation resistance, shock and dust resistance features, and is functionally diverse. It can be widely used as high-end high-temperature lubricating oil, base oil for lubricating grease, high-temperature heat carriers, insulating media, damping oil, shock and dust filling media, covering all scenarios such as industrial equipment lubrication, damping of precision instruments, insulation of electronic and electrical equipment, high-temperature heat conduction, and outdoor equipment protection.
In industrial practical applications, this product can be blended into high-end high-temperature lubricating grease, suitable for metallurgical high-temperature equipment, kiln furnace transmission components, and high-temperature conveyor belt bearings lubrication, solving the problems of high-temperature loss and carbonization blockage of ordinary lubricating oil; as damping and shock-proof oil for precision instruments, it has small viscosity changes in high and low temperature environments and stable damping force, ensuring the accuracy of instrument measurement; as an electrical insulation medium, it has stable breakdown voltage and excellent insulation performance, and can be used for insulation protection of high-temperature electronic components; at the same time, with radiation resistance characteristics, it can be adapted to special working conditions of special industrial and research equipment, with extremely strong versatility.
The packaging and storage system is complete. Product 255B high-temperature phenyl silicone oil provides multiple specifications of packaging such as 25 kilograms, 50 kilograms plastic drums, and 200 kilograms iron drums, taking into account the needs of small-scale samples, batch production, and large-scale factory stockpiling. The product should be stored in a clean, dry, ventilated, and light-proof warehouse, suitable for conventional storage conditions, and is transported and stored in an odorless and non-hazardous manner, without the need for hazardous materials approval, with convenient logistics and low storage costs. Under standard sealed storage conditions, the product has a shelf life of up to 3 years, flexible inventory turnover, and effectively reduces enterprise raw material losses.
At present, the domestic process of replacing imported high-end industrial media is accelerating. The high-temperature phenyl silicone oil that relied on imports in the past has been gradually replaced by domestic high-performance products. Product 255B high-temperature phenyl silicone oil, with its four core advantages of high-performance double-benz structure, wide temperature range, high cost performance, and customizable features, breaks the monopoly of imported products, performs on par with international first-line brands, and has better high-temperature stability, lower procurement costs, and more stable supply, becoming a core essential raw material in industrial lubrication, precision protection, and high-temperature heat conduction fields. In the future, as high-end equipment, new energy, and precision manufacturing industries continue to upgrade, this highly versatile phenyl silicone oil will continue to help domestic industrial equipment improve quality and reduce costs, promoting the high-quality development of the high-end organic silicon functional media industry.