Silicone fluids

Silicone fluids are generally colorless transparent liquids. They exhibit excellent resistance to heat, cold, and moisture. There is also little viscosity change in silicone fluids over a wide temperature range, and they have outstanding electrical properties. In addition, they are notable for their characteristics of mold-releasability, water repellency, lubricity, and defoaming properties.

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Features

Heat resistance

Silicone fluids have outstanding stability against thermal oxidation.

Cold resistance

Silicone fluids withstand low temperatures well. Methylphenyl silicone fluid, formulated for low temperature applications, maintains flowability even at -65°C.

Viscosity stability

There is little change in viscosity over a wide temperature range.

Chemical stability

Silicone fluids are almost totally chemically inactive. At room temperature, they show almost no effects from alkali solutions (up to 10%) or acidic solutions (up to 30%).

Non-corrosive and little effect on other materials

Silicone fluids have almost no adverse effects on metals and many other materials.

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Low surface tension

Silicone fluids have much lower surface tension than water and other common synthetic oils.

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Typical Products

Applications Grade Features General purpose KF-96L
KF-96A
KF-96
KF-96H Dimethyl silicone fluid
The most typical product of all silicone fluids Paint additive KF-69 Dimethyl silicone fluid
Improves gloss while preventing orange peel and silking in paints Water repellency treatment KF-99 Methylhydrogen silicone fluid
Highly water repellent, Suitable for processing of glass, metal, fibers, and powders Low-temperature applications KF-50 Methylphenyl silicone fluid
For low-temperature applications (-60°C to +200°C) High-temperature applications KF-54 Methylphenyl silicone fluid
For high-temperature applications (-30°C to +250°C). Suitable as a heating medium in open systems. KF-965 Dimethyl silicone fluid
For high-temperature applications (-50°C to +250°C). Suitable as a heating medium in closed systems. KF-968 Dimethyl silicone fluid
For high-temperature applications (-50°C to +250°C). Suitable as a heating medium in open systems. For oil diffusion pumps HIVAC-F-4
HIVAC-F-5 Methylphenyl silicone fluid
Superior chemical resistance and resistance to oxidation. For high-level vacuums of 10a-7 to 10-12 Torr, HIVAC F-5 can reach higher degrees of vacuum. Additives for cosmetics KF-56A Methylphenyl silicone fluid
Alcohol-soluble KF-995 Cyclic dimethyl silicone fluid
Volatile, No residue after volatilization, so cosmetics have a dry feel

Clearco Silicones offers a complete line of silicone fluids in a wide viscosity range to provide maximum latitude in selecting the specific silicone fluid to meet the requirements of a particular industrial, military or consumer application.

While it is difficult to recommend the use of any one fluid for an application, this publication lists various applications and indicates the Clearco silicone fluids most frequently used. Generally speaking, it is best to evaluate several possible silicone fluids to determine which will provide the optimum performance in an application.

Listed below are descriptions of the commonly used Clearco silicone fluids with examples of the types of applications for which the fluids are designed.