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Santovac® 7GB
Ultra High Vacuum and High Temperature Grease
Summary:
Santovac® 7 GB is a non-melting, high temperature, ultra-high vacuum grease with exceptional resistance to oxidation, radiation, chemical attack and moisture. The base fluid used in polyphenyl ether ( Santovac 5 ) that has been successfully used for many years in high performance vacuum applications. Santovac 7 GB is also recommended for applications, where exposure to extreme chemical environment, radiation and high temperature is expected.
Advantages:
- Resist degradation due to high voltage
- High thermal stability
- Resists chemical attack
- Resists oxidation and radiation
- Excellent resistance to rust and corrosion
- High dielectric strength
| Physical Properties | Typical Results |
| Appearance | Smooth, white |
| Worked Penetration | 249 |
| Unworked Penetration | 252 |
| Dropping Point °C | > 254 |
| Evaporation Rate 24hrs/150°C | Nil |
| Oil Separation 24hrs/150°C | < 0.1 |
| Timken, OK Load | 40 |
| Vapor Pressure | 4 X 10-10 Torr @ 25°C |
| Max Operating Temperature °C | 310 |