Skydrol 500B-4

The Skydrol 500 series of fluids has the longest service history among phosphate ester products. The first version, Skydrol 500, was introduced in 1952. Steady improvements to the formulation led in 1977 to the current version, Skydrol™ 500B-4 which contains the same breakthrough anti erosion additive and acid scavenger found in Skydrol™ LD-4 . Skydrol 500B-4 is the most worker friendly of the aviation phosphate esters. This has given the product enormous popularity for use in work shops and indoor test stands..

Fluids ApplicationsAviation hydraulic fluidFire Resistant Hydraulic FluidTypical PropertiesPropertyTest MethodTypical Value, UnitsGeneralAcid Number (mg KOH/g) 0.10 MaximumAppearance Clear, oily liquidAutoignition TemperatureASTM D 2155460 °C (860 °F ) MinimumColor Purple, essentially equivalent to intensity and hue standardElemental Content      Calcium 10 ppm, Maximum     Chlorine 50 ppm, Maximum     Potassium 30 ppm, Maximum     Sodium 10 ppm, Maximum     Sulfur 1185-1460 ppmFire Point      COC 191 °C (375 °F ) MinimumFlash Point      COC 177 °C (350 °F ) MinimumMoisture 0.20 % MaximumParticle Contaminationa      15-25 micron size 5,700 Maximum     25-50 micron size 1,012 Maximum     50-100 micron size 180 Maximum     5-15 micron size 32,000 Maximum     Over 100 micron size 32 MaximumPour Point -62 °C (-80 °F ) MaximumSpecific Gravity      @ 25°C/25°C 1.050-1.062Viscosity      @ 38°C (100°F) 11.40-12.40 cSt     @ -54°C (-65°F) 2900 cSt Maximum     @ 99°C (210°F) 3.68-4.00 cSt Eastman Chemical Eastman Chemical Industrial Chemicals,Fluids and Lubricants Aviation

  • Brand: : Eastman Chemical
  • Producer/Supplier : Eastman Chemical
  • Chemical Group/INCI : Fluids
  • Chemical Category : Industrial Chemicals
  • Sub Category : Fluids and Lubricants
  • Industry/Applications

    : Aviation

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