Polyphenylmethylsiloxane IOTA BJ710
FEATURES

1. Retains its properties after continuous use at temperatures up to 260°C in closed systems

2. Shows very low volatility even at elevated temperatures

3. Highly resistant to oxidation and gumming

4. Exhibits good radiation resistance by remaining serviceable after doses of up to 200 megarads at room temperature

5. No change in physical properties after thousands of hours operation at 250°C in a closed system

APPLICATIONS

• Lubricant for timing devices, instruments, bearings operating at 0°C to 260°C.

• Good base oil for high temperature greases thickened with molybdenum disulphide.

• Heat exchange fluid in high temperature baths and in heat treating baths for metals.

TYPICAL PROPERTIES

Parameter                                                                            value

Color                                                                              Colourless to light straw

Specific gravity at 25°C/15.6°C                                                     1.11

Viscosity at 25°C                                                              500  mm2/s 

Volatility 4 hours/ 250°C                                                              3 % 

Spontaneous ignition temperatue                                           488℃  

Thermal decomposition point                                                 370℃   

Flash point - open cup                                                           302℃   

Freeze point                                                                           -22 ℃ 

Refractive index at 25°C                                                            1.533

Surface tension at 25°C                                                       28.5mN/m 

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