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IOTA BJ550 Polyphenylmethyldimethylsiloxane

IOTA BJ550 Polyphenylmethyldimethylsiloxane
FEATURES

1. Low volatility

2. Serviceable temperature range of -40°C up to 230°C in open systems, and up to 315°C in closed systems

3. Low viscosity of 125mm²/sec at 25°C

4. High flash point

5. Excellent heat transfer characteristics

6. Flat viscosity temperature curve

7. Good compressibility

8. Good oxidation and gumming resistance

APPLICATIONS

As a lubricant:

• Base oil for high temperature ball bearing greases.

• Lubricating oil for high temperature instruments.

• Impregnating oil for sintered bronze bearings in small electric motors and mechanisms exposed to high ambient temperatures.

As a heat transfer medium:

• Heat-treating baths for speciality metals.

• Heat exchange fluid for research apparatus and instrument calibration baths.

• Heat transfer oil in capacitors, transformers and various electronics.

As a thermostat fluid:

• Suitable for temperatures from -40°C to 315°C in thermostat systems, which should be kept clean.

TYPICAL PROPERTIES

Parameter                                    unit                             value

Color                                                                                Colorless

Specific gravity at 25°C/15.6°C                                             1.068

Viscosity at 25°C                             mm2/s                           125

Surface tension at 25°C                       mN/m                         25

Flash point - open cup                         °C                              300

Freeze point                                   °C                                  - 50

Refractive index at                            25°C                          1.49-1.50

Viscosity stability²                                                               <5%

USABLE LIFE AND STORAGE

When stored at or below 60°C in the original unopened containers, this product has a usable life of 60 months from the date of production.

LIMITATIONS

This product is neither tested nor represented as suitable for medical or pharmaceutical uses




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