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IOTA BJ1000 belongs to the family of phenyl-modified polydimethylsiloxanes. What sets it apart from standard dimethyl silicone oils is the incorporation of phenyl groups into the polymer backbone. This structural modification brings about noticeable improvements in thermal resistance, dielectric performance, and compatibility with a broader range of materials. The result is a clear, colorless, and odorless fluid that can handle demanding industrial tasks with confidence. For engineers and technicians who work with heat transfer systems, hydraulic equipment, electrical components, or high-temperature machinery, BJ1000 offers a well-balanced set of properties that are hard to match with a single alternative product.
As a Heat Transfer Fluid: The thermal conductivity of BJ1000 at 50 degrees Celsius is about 0.14 W·m⁻¹·K⁻¹, and its specific heat at 25 degrees Celsius is roughly 1.46 J·g⁻¹·K⁻¹. Combined with its stable viscosity across a wide temperature span, these characteristics make BJ1000 a practical choice for heat exchangers, thermal management loops, and other systems where efficient heat transfer is a priority.
As a Pressure Transmission Fluid: In hydraulic applications, the viscosity of the working fluid directly affects system responsiveness and efficiency. BJ1000's viscosity of 900 to 1300 mPa·s at 25 degrees Celsius (per DIN 51562) falls within a range that supports smooth and accurate pressure transmission. This makes it a reliable medium for hydraulic systems that require consistent performance.
As an Insulating Medium in Electrical Equipment: With a dielectric constant of approximately 2.9 at 25 degrees Celsius and 100 Hz, and a dielectric strength of around 20 kV·mm⁻¹, BJ1000 provides solid electrical insulation in capacitors and transformers. These figures indicate that the fluid can withstand substantial electrical stress, contributing to the long-term reliability of the equipment it protects.
As a Base Fluid for Heat-Resistant Lubricants: The flash point of BJ1000 is approximately 280 degrees Celsius (per ISO 2719), and its ignition temperature is greater than 400 degrees Celsius (per DIN 51794). These values indicate a high level of thermal safety, making BJ1000 a favored base stock for formulating lubricants that must perform at elevated temperatures.
The effective operating temperature range of BJ1000 is from minus 35 degrees Celsius to plus 200 degrees Celsius, but this figure assumes "pure chemical" conditions. In practice, contamination from even small quantities of acids, alkalis, mineral oils, organometallic compounds, metal salts, or metal oxides can noticeably shorten the product's service life. Users should also be aware that the flash point of silicone fluids can shift due to prolonged thermal exposure. If BJ1000 is used in an open system, flash point testing should be conducted at least annually, with more frequent checks recommended for demanding operating environments.
