Requirements for Media Materials in Vacuum Coating

Processes such as vacuum coating, vacuum sintering, and vacuum heat treatment all operate under low-pressure conditions. Volatilization of internal media directly impacts vacuum levels, coating quality, and equipment maintenance cycles. Conventional oils tend to produce high volatilization losses under high-temperature vacuum environments, leading to reduced vacuum levels, pump contamination, and oil mist deposition on product surfaces. Therefore, selecting lubrication, sealing, or heat transfer media for vacuum equipment requires careful attention to the material's volatility characteristics at high temperatures, thermal stability, and compatibility with vacuum systems.

Application Basis of Phenyl Silicone Oil in Vacuum Systems

Phenyl silicone oil incorporates phenyl groups into its molecular structure, giving it higher thermal stability and lower volatility compared to conventional methyl silicone oils. In processes such as vacuum coating and vacuum sintering, phenyl silicone oil can serve as diffusion pump oil, vacuum sealing oil, or high-temperature lubrication medium. Its low volatilization loss at high temperatures helps maintain a stable vacuum environment, reducing pump contamination and surface deposition caused by media evaporation. Additionally, its good lubricity meets the lubrication needs of moving components in vacuum equipment.

IOTA 255: Phenyl Silicone Oil for Vacuum Environments

IOTA 255 is a phenyl silicone oil product from Anhui IOTA Silicone Oil Co., Ltd., suitable for applications requiring high-temperature resistance and low volatility, such as vacuum coating, vacuum sintering, and vacuum heat treatment.

• Low Volatility: IOTA 255 exhibits minimal volatilization loss in high-temperature vacuum environments, helping maintain stable vacuum levels while reducing media consumption and system contamination.
• Excellent Thermal Stability: Capable of continuous operation within the 250°C to 300°C temperature range, adapting to sustained heating or thermal cycling conditions in vacuum equipment.
• Stable Lubricity: Even under high-temperature conditions, IOTA 255 maintains good lubricating properties, suitable for bearings, chains, and other moving components in vacuum equipment.
• Stable Physical Properties: A colorless, transparent liquid with good fluidity and spreading characteristics, facilitating use in vacuum systems.

Typical Application Scenarios

IOTA 255 phenyl silicone oil serves multiple purposes in vacuum-related processes:

• Diffusion Pump Oil: Used as the working medium in diffusion pump systems for vacuum coating machines, vacuum sintering furnaces, and similar equipment to maintain high vacuum environments.
• Vacuum Sealing Oil: Applied at sealing points in vacuum systems to maintain sealing performance at high temperatures and reduce gas leakage.
• Vacuum Equipment Lubrication: Lubricates bearings, chains, gears, and other moving components in vacuum environments, providing continuous lubrication protection at high temperatures.
• Vacuum Heat Treatment: Serves as a heat transfer or lubrication medium during heat treatment processes, adapting to high-temperature vacuum conditions.

Note: Operating conditions vary across different vacuum equipment, including working temperatures, vacuum level requirements, and media-contact materials. During the selection phase, we recommend consulting with technical personnel based on specific equipment parameters to ensure product compatibility.

Technical Specifications

表格

Parameter	Value
Appearance	Colorless, transparent liquid
Product Type	Phenyl silicone oil
Continuous Service Temperature	250°C – 300°C
Key Attributes	Low volatility, excellent thermal stability, stable lubricity

About IOTA

As a full-chain silicone solutions provider, Anhui IOTA Silicone Oil Co., Ltd. offers products spanning silicone oils, diffusion pump oils, and more. IOTA 255 is our phenyl silicone oil developed for vacuum and high-temperature applications, providing a material option for vacuum coating, vacuum sintering, and similar processes. For detailed Technical Data Sheets (TDS), Safety Data Sheets (SDS), or application consulting, please visit our website or contact our technical team.

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FAQ

What role does phenyl silicone oil play in vacuum coating?
Phenyl silicone oil can serve as diffusion pump oil, vacuum sealing oil, or high-temperature lubrication medium. Its low volatility and thermal stability help maintain a stable vacuum environment. Can IOTA 255 be used in diffusion pumps?
Yes. IOTA 255 can be used as diffusion pump oil, suitable for vacuum coating machines, vacuum sintering furnaces, and similar equipment. Does IOTA 255 have high volatility?
IOTA 255 exhibits low volatilization loss at high temperatures, making it more suitable for vacuum environments than conventional silicone oils. At what temperature can IOTA 255 operate?
IOTA 255 can operate stably for extended periods within the 250°C to 300°C temperature range. Can IOTA 255 be used for lubrication in vacuum equipment?
Yes. IOTA 255 offers excellent high-temperature lubricity, suitable for lubricating bearings, chains, and other moving components in vacuum environments. What is the difference between phenyl silicone oil and conventional silicone oil in vacuum applications?
Phenyl silicone oil has higher thermal stability and lower volatilization loss, performing more stably in high-temperature vacuum environments, making it more suitable for processes such as vacuum coating. What packaging sizes are available for IOTA 255?
Available in 1 kg plastic bottles, as well as 5 kg, 25 kg, and 50 kg plastic drums and 200 kg steel drums. How can I obtain technical documentation for IOTA 255?
Visit the Anhui IOTA Silicone Oil Co., Ltd. website or contact our technical team for complete Technical Data Sheets (TDS) and Safety Data Sheets (SDS).

High temperature resistant silicone oil IOTA 255-IOTA