Phenyl Hydroxy Silicone Oil is a specialized class of functional silicone fluids widely used in advanced rubber processing, surface treatment, and industrial additive applications. Phenyl Hydroxy Silicone Oil IOTA 2207, chemically described as a hydroxy-terminated phenyl methyl siloxane–dimethyl siloxane copolymer, is designed to combine the inherent advantages of silicone oils with enhanced thermal and structural control properties.

Structurally, this product features a siloxane (Si–O–Si) backbone with methyl and phenyl substituents along the polymer chain and hydroxyl groups at both chain ends. This molecular design allows the material to retain the flexibility and chemical stability typical of silicone fluids, while the phenyl groups significantly improve heat resistance and compatibility. The hydroxyl end groups provide moderate reactivity, making the product particularly effective as a structure-regulating component in silicone rubber formulations.

Phenyl Hydroxy Silicone Oil IOTA 2207 is a colorless, transparent oily liquid with good stability under normal storage conditions. It offers a wide viscosity range, typically from 500 to 20,000 mPa·s at 25°C, allowing users to select suitable grades for different processing and performance requirements. The density at 25°C is approximately 0.98 g/cm³, making it easy to handle and formulate in industrial systems.

From a performance perspective, this silicone oil exhibits several outstanding characteristics. One of its key advantages is excellent thermal stability. The presence of phenyl groups enhances resistance to thermal degradation, enabling the material to maintain consistent properties under elevated temperatures or prolonged heat exposure. In addition, it demonstrates good low-temperature fluidity, remaining flexible and flowable in colder environments where conventional silicone oils may become less responsive.

The siloxane backbone provides naturally low surface tension and superior lubricity. These properties contribute to reduced friction, improved release behavior, and enhanced processing efficiency in various applications. At the same time, the hydroxyl-terminated structure allows the material to interact with other components in a formulation, especially in silicone elastomer systems.

One of the primary applications of Phenyl Hydroxy Silicone Oil IOTA 2207 is as a structure control agent in silicone rubber processing. In both high-temperature vulcanized (HTV) and room-temperature vulcanized (RTV) silicone rubber systems, it helps regulate molecular structure, improve processability, and prevent excessive structuring during mixing and curing. The hydroxyl end groups can participate in curing reactions, contributing to a more uniform crosslinked network and improved mechanical consistency of the final rubber products.

The product is also widely used in anti-adhesion and release treatments. When applied to paper, films, or other substrates, it effectively reduces surface tackiness, improves release performance, and enhances operational efficiency during manufacturing and handling processes.

In addition, Phenyl Hydroxy Silicone Oil IOTA 2207 can function as a lubricant or lubricant additive, improving friction behavior in mechanical systems. In coatings, inks, and related formulations, it contributes to better wetting, leveling, and surface appearance. In textile finishing, its softness, lubricity, and heat resistance help improve fabric hand feel, durability, and processing stability.

For packaging and storage, the product is commonly supplied in 200 kg plastic drums or composite containers. It should be stored in a cool, dry, and well-ventilated area, with containers kept tightly sealed. Contamination with acids, alkalis, or other reactive substances should be avoided, and the product should be kept away from ignition sources and excessive heat. Under proper storage conditions, the typical shelf life is 12 months. The product can be transported as a non-hazardous material, simplifying logistics and handling.

In summary, Phenyl Hydroxy Silicone Oil IOTA 2207 is a versatile and high-performance functional silicone fluid. Its balanced combination of thermal stability, structural control capability, and excellent processing characteristics makes it a reliable choice for demanding industrial applications where performance consistency and formulation flexibility are essential.