In modern industrial production and fine chemical manufacturing, polydimethylsiloxane (PDMS) has become an indispensable basic material due to its unique molecular structure and outstanding physicochemical properties.

I. Core Chemical Characteristics and Technical Parameters

PDMS-350CS methyl silicone oil features a Si–O–Si backbone with methyl groups attached to the silicon atoms along the polymer chain. This unique helical molecular structure results in extremely weak intermolecular forces, allowing the methyl groups to orient outward and rotate freely. As a result, the product exhibits a range of excellent physical properties.

PDMS-350CS demonstrates outstanding physical stability:

Appearance: A completely transparent liquid that is colorless, odorless, tasteless, and non-toxic.

Flash Point (Open Cup, °C): Greater than 326°C, providing excellent fire safety performance and making it suitable for high-temperature operating environments.

Viscosity Temperature Coefficient: 0.60. This indicates low sensitivity to temperature fluctuations, allowing the product to maintain stable dynamic viscosity even under significant temperature variations and ensuring consistent damping and lubrication performance.

Solubility Parameter: 7.4.

Surface Energy: Extremely low surface tension, excellent film-forming ability, and outstanding spreading performance on various substrate surfaces.

II. Core Advantages: Transforming Material Properties into Practical Value

PDMS-350CS is not merely a chemical material; it is an effective solution for addressing challenges in industrial production processes. Through a deeper understanding of its characteristics, its ability to solve practical customer needs becomes clear:

Superior Release and Cleaning Performance

PDMS-350CS exhibits excellent non-stick properties toward materials such as rubber, plastics, and metals. When used as a release agent in precision casting or rubber and plastic processing, it significantly improves demolding efficiency, ensures clean product surfaces with well-defined textures, and effectively reduces defect rates.

Excellent Protective and Gloss-Enhancing Effects

PDMS-350CS silicone oil is a key active component in polishing compound formulations. Whether used for automotive paint polishing, furniture care, or metal surface treatment, it provides long-lasting gloss while forming a durable water-repellent protective film with excellent oxidation resistance and weatherability.

Delicate and Skin-Friendly Touch

In the cosmetics and personal care industry, PDMS-350CS helps eliminate the "soap-like drag" sensation in formulations, providing the skin with a smooth, soft, and silky feel. Its excellent spreading properties allow skincare products to distribute more easily over the skin and hair surface, thereby enhancing the end-user experience.

Reliable Industrial Damping and Insulation Performance

With high dielectric strength and excellent shear stability, PDMS-350CS is widely used in the electromechanical industry as a heat-resistant, moisture-resistant, and dust-resistant insulating medium. It is also applied as a liquid shock-absorbing and damping material in precision instruments.

III. Wide Range of Applications

The excellent compatibility and versatility of PDMS-350CS methyl silicone oil enable its application throughout multiple stages of industrial production:

Textile Lubrication

As a smoothing agent for sewing threads, PDMS-350CS provides excellent thermal stability and a low viscosity-temperature coefficient, helping prevent thread breakage and static electricity generation during high-speed sewing operations.

Defoaming Systems

Due to its insolubility in water and most animal and vegetable oils, PDMS-350CS can achieve highly efficient defoaming performance in industries such as petroleum, chemical processing, and papermaking, even when added in very small quantities.

Specialty Coatings

PDMS-350CS can be used for waterproofing and mildew-resistant coatings on glass and ceramic surfaces, improving the protective performance and service life of insulating components.

Elastomer Lubrication

As an internal or external lubricant for plastic and rubber products, PDMS-350CS improves processing flowability, reduces friction, and enhances production efficiency.

IV. Usage and Storage Recommendations

PDMS-350CS exhibits excellent solubility in organic solvents, including aliphatic and aromatic hydrocarbons. Meanwhile, with the use of appropriate emulsifiers and emulsification technologies, it can also be easily dispersed or emulsified in water, allowing users to conveniently dilute or formulate the product according to specific application requirements.

For storage, the product should be kept in a sealed container and stored in a cool, dry, and well-ventilated environment away from fire sources and heat exposure.

Vici Chemicals provides a standard shelf life of 24 months from the production date, ensuring long-term product stability and helping enterprises reduce risks associated with procurement, storage, and inventory management.