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Mobil COOLANOL™

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Mobil COOLANOL™ silicate ester synthetic dielectric heat transfer fluids are designed to meet the special needs of sensitive electronic components and environmental control systems in aircraft, missiles and spacecraft.

The proven quality and reliability of Mobil COOLANOL is an important additional safeguard against costly and potentially catastrophic failure of critical airborne electrical equipment.

Reasons to trust Mobil COOLANOL

  1. Superb high- and low-temperature stability
  2. Versatile and simple to handle
  3. Manufactured under stringent quality control
  4. Oxidative stability
  5. Radiation resistance
  6. Lubricity

Data sheets

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Features and Benefits

COOLANOL is specifically intended for liquid circulating systems (dynamic liquid phase) found in high-density electronic packages in aerospace and military applications. Such systems are in wide use because of their excellent heat transfer efficiency. COOLANOL should not be used in vaporizing (boiling liquid) systems.

Superb High and Low Temperature Stability

Versatile and Simple to Handle

Manufactured under Stringent Quality Control

Oxidative Stability

Radiation Resistance

Lubricity

 

Applications

To select the proper COOLANOL fluid for a given application, first determine the upper and lower temperature parameters of the application.

     •  Coolanol 20:  (-101 - 149 °C / -150 – 300 °F)

     •  Coolanol  25R:  (-54 - 149 °C / -65 – 300 °F)

 

Properties and Specifications

Property

COOLANOL 20

COOLANOL 25R

Acid Number, mgKOH/g, ASTM D664

0.02

0.01

Appearance, Visual

Clear

Clear to Amber

Dielectric Constant, ASTM D924

2.5

2.6

Flash Point, Cleveland Open Cup, °F, ASTM D92

< 230

< 330

Kinematic Viscosity @ -65 F, mm2/s, ASTM D445

44

240

Kinematic Viscosity @ 0 F, mm2/s, ASTM D445

 

23

Kinematic Viscosity @ 100 C, mm2/s, ASTM D445

 

1.6

Kinematic Viscosity @ 100 F, mm2/s, ASTM D445

2.05

4.2

Kinematic Viscosity @ 210 F, mm2/s, ASTM D445

0.94

1.62

Kinematic Viscosity @ 40 C, mm2/s, ASTM D445

 

4

Specific Gravity, 77 F/77 F, ASTM D4052

0.887

0.893

 

Health and Safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx

Boeing (McDonnell-Douglas)
Grumman
Hughes Aircraft
Northrop
Extended temperature range
Severe operating conditions
MIL-C-47220B Type III
MIL-C-47220B Type IV
MMS-652, Rev A
Grumman GM 6003A, Amendment-No 1
Type I
Hughes Aircraft HMS 20-1458 Rev E
Northrop MS-138, Rev A
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