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
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Outstanding material compatibility
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Miraculous airtightness performance
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Excellent resistance against bromine, water and other chemical fluids.
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Do not contain any heavy metal and nitrite that will do harm to human’s health and pollute environment.
Technical specification
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Meets the following performance specification: Q/SH303 139-2004.
Application
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Grease 7501 is specially designed for the lubrication and sealing applications such as glass pistons and joints in vacuum systems.
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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
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Prevent water and impurities during storage and transportation.
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Do not mix with other type of grease.
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Do not heat before using.