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High-Vacuum Silicon Grease

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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

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