Introduction to Silicone Fluids - Silicone Oils and ...

1 Introduction to Silicone Fluids Clearco Silicones offers a complete line Wide Temperature Range Shear Stability of Silicone Fluids , which have a Low temperature limits and high Silicone Fluids have unusually high combination of properties that give temperature capabilities of Silicone Fluids far resistance to breakdown by mechanical superior performance in a wide variety surpass those of conventional Fluids . shearing. The shear stability of Silicone of applications. Fluids can be as much as twenty times that Thermal Stability of quality petroleum oils, providing longer Unique Chemical Structure Silicone Fluids show excellent stability when life at higher speeds and loadings. In chemical structure, exposed to high temperatures for extended Polydimethylsiloxane or PDMS Silicone periods of time.

2 Thermal Conductivity Fluids are quite different from all other The thermal conductivity of Silicone Fluids Fluids . Where organic hydrocarbon Oxidation Stability over a wide temperature range is Fluids are based on a backbone of The oxidation stability of Silicone Fluids is comparable to hydrocarbon Fluids . carbon to carbon atoms, Silicone Fluids excellent. Absence of copper induced have a backbone of silicon oxygen oxidation is especially important and Dielectric Properties linkages similar to the Si O linkages in contrasts with the sludging that occurs with Electrical grade Silicone Fluids offer high temperature inorganic materials mineral oils, especially at high temperatures. excellent dielectric properties, which are such as quartz, glass and sand. This maintained for prolonged periods, even molecular backbone is much stronger Chemical Inertness under adverse operating conditions.

3 Than the typical carbon to carbon chain Silicone Fluids are chemically inert to most and is more resistant to attack by common materials of construction. Non Corrosive temperature extremes, oxidation, shear Silicone Fluids contain no acid producing stresses and chemicals. See sample Low Flammability chemicals to cause staining or corrosion. structures at the bottom of this page. Flash points in the range of 205 C to 260 C (400 F to 500 F) and auto ignition Food Grade Silicone fluid Unique Combination of Properties temperatures in the range of 438C to 460C Clearco PSF 350cSt is registered with the This chemical structure gives Silicone (820 F to 860 F) are typical for PDMS NSF/USDA as an H1 lubricant for incidental Fluids a profile of properties, which Silicone Fluids with viscosity > 50cSt.

4 Contact in food processing and food permits them to perform in applications packaging applications. where other Fluids would not be Low Surface Tension suitable. Some of the outstanding Silicone Fluids have unusually low surface All of these properties are found in the properties shared by most Silicone tensions, which help provide easy and basic family of dimethyl Silicone Fluids , Fluids are: efficient spreading, high surface activity and which are available in a wide range of low internal cohesive energies. Lower viscosities. Low Viscosity Temperature Change viscosities provide lower surface tensions All Fluids show some degree of change than higher viscosities. To meet other specific application needs, in viscosity with temperature change, Clearco Silicones provides additional but Silicone Fluids exhibit a much Compressibility Silicone Fluids .

5 Smaller degree of change over a wider Silicone Fluids of 10 centistokes or more temperature range than non Silicone exhibit compressibility of at pressures Fluids . of 2,000 psi at room temperature. Lower viscosities exhibit higher compressibility than higher viscosities. Organic fluid Silicone fluid H [H] H CH3 [ CH3. CH3 ]. |. H C [C] C H Si [O Si O] Si |. H [H] H CH3 [ CH3 ] CH3. N n (Hydrocarbon Polymer) (Polydimethylsiloxane). Hundreds of Applications Product Description in Almost Every Industry and Selection Damping Fluids Calibration Fluids Lubricants Clearco Silicones offers a complete line of Silicone Fluids in a (Meets VV D 1078) Flow tests Base Fluids for Greases wide viscosity range to provide maximum latitude in Aircraft Instruments Calibration tests O Ring lubricant selecting the specific Silicone fluid to meet the Dashpots Process flow modeling Rubber and Plastic requirements of a particular industrial, military or Gyros Parts consumer application.

6 While it is difficult to recommend Meters High Shear Applications Plastic to plastic the use of any one fluid for an application, this publication Shock Absorbers Plastic to metal lists various applications and indicates the Clearco Silicone Time Delay Relays Hydraulic Fluids Plastic to foam Fluids most frequently used. Generally speaking, it is best Timing Devices Constant Speed Devices Lubrication to evaluate several possible Silicone Fluids to determine Torsional Vibration Dampers Engine Controls Gasket lubricant which will provide the optimum performance in an Diff Oils for motorized cars High Temperature Valve lubricant application. Listed below are descriptions of the commonly Plastic Forming used Clearco Silicone Fluids with examples of the types of Thermal Bath Fluids Missile and Space Textile Finishing applications for which the Fluids are designed.

7 (open and closed systems) Vehicles Systems Thread Lubes High temperature baths Naval Hydraulics Softeners DIMETHYLS (Polydimethylsiloxanes/ PDMS Silicone Oils) Low temperature baths Systems Water Repellants Heaters/Chillers Supersonic Aircraft PSF Fluids ( to 2,5 million cSt) Anti blocking Agents Clearco Pure Silicone Fluids are Polydimethylsiloxane Power Transmission Dielectric fluid Paper Sheet Fluids / PDMS Silicone Oils. They are clear, oily Fluids ; inert, Controlled Speed Devices Capacitors Plastic Sheet tasteless, and odorless. PSF Fluids are available in the fluid Clutches Klystrons Rubber viscosity range from to million cSt. (Viscosities Hydraulic Systems Magnetrons Wax Cartons for Foods measured at 25C /77F). The actual viscosity is controlled Microwave Tubes within 5 percent of the nominal viscosity in the grades of Heat Transfer Power Rectifiers EDM Coolants 50 centistokes or higher.

8 The unique combination of Heating Baths Radar Equipment properties associated with the PSF Fluids makes them Heat Exchangers Transformers (STO 50) Food Packaging suitable for plastic and rubber lubrication, as dampening or Low Temperature Baths Anti blocking heat transfer Fluids , as thermal bath Fluids , high shear Thermostats Release Agents Dry Foods Meats Fluids , dielectric applications, and as an oil defoamer. Automobile and Truck Paper Plates These Fluids are also used in chemical specialties, Liquid Springs and Shock Tires Lubricant for foam and antifoams, paint additives and other similar applications. Absorbers Fan Belts saran Missile Suspension Molding Prevents sugar build Low Viscosity Fluids ( to 20cSt) Systems Ingot Mold Wash ups Low Viscosity Fluids range from to 20cSt.

9 They are Railroad Cars Plastics characterized by low molecular weights, low surface Trucks Rubber Mats Food Processing tension, volatility (viscosities below 5cSt), high Shell Mold and Core Antifoaming compressibility and excellent low temperature Polishes Molding Dry Food Release performance. They are often used as base Fluids in a wide Boat Polish Shoe Heels and Soles array of cosmetic ingredients. Other applications include Car Polish Wire and Cable Slip Particle Treatments damping applications and low temperature bath Fluids . Furniture Polish Agent Dyes Metal Cleaners Fillers High Viscosity Silicones (5,000cSt +) Vinyl Polish Water Repellents Fire Extinguisher Hi Viscosity Silicone Fluids are clear, colorless, & Odorless Window Cleaners Textile Particles PDMS Silicone Oils / Polydimethylsiloxane Fluids with no Underarm Dress Shield Pigments suspended particulate matter.

10 They are inert, tasteless and Cosmetics and Pharmaceuticals odorless. The Hi Viscosity Fluids are available in standard Anti Perspirants Antifoams Rubber and Plastic viscosity grades of 5,000, 10,000, 12,500, 30,000, 60,000, Deodorants Aromatic Scrubbing, Additives 100,000, 300,000, 600,000, 1million and 2million cSt @ Hand Creams and Asphalt Elimination of Blocking 25C (77F). Hi Viscosity Fluids are characterized by relatively Lotions High Detergent Motor Extrusion Aids small changes in viscosity over a wide temperature range. Hair Sprays Oils Internal Release Agents They have good oxidative stability, high chemical inertness Lipstick Petroleum Defoamers Plasticizers and resistance to breakdown under mechanical shearing. Make up or Color Hi Viscosity Fluids are especially useful for linear and Cosmetics Paint and Coating Photography torsional dampeners, viscous drive clutches, speed control Process Aids for Anti biotic Additives Projector Lubricant devices, liquid springs, dash pots, rubber and plastic Preparations Defoaming Natural Gum Repair Scratched lubricants, timing devices, and are the base Fluids for Shampoos and Conditioners and Synthetic Resin Negatives Silicone compounds.