Lubricants
High-Vacuum Silicon Grease 7501
SINOPEC High-Vacuum Silicon Grease 7501 is formulated from a synthetic silicon fluid and an inorganic thickener and various well-chosen additives. According to GB/T 7631.8-90(ISO6743/9-1987), Grease 7501 can be classified as follow:L-XDGEA3.
Features & Benefits
Outstanding material compatibility
Miraculous airtightness performance
Excellent resistance against bromine, water and other chemical fluids.
Do not contain any heavy metal and nitrite that will do harm to human’s health and pollute environment.
Technical specification
Meets the following performance specification: Q/SH303 139-2004.
Application
Grease 7501 is specially designed for the lubrication and sealing applications such as glass pistons and joints in vacuum systems.
Application temperature range:-40ºC to 200ºC.
Typical Properties
| Items | Grease 7501 | Test Methods |
| Appearance | white smooth buttery | Visual |
| 1/4Worked Cone Penetration,0.1mm | 50 | ASTM D217 |
| Evaporation Loss(200ºC,1h),% | 0.7 | ASTM D972 |
| Apparent viscosity(-40ºC,10s-1),Pa·s | 588 | ГОСТ7163 |
Attentions
Prevent water and impurities during storage and transportation.
Do not mix with other type of grease.
Do not heat before using.
