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.