Chapter 3 - Deicing/Anti-icing Fluids


24.  Colours are used as a visual aid in the application of fluids to aircraft surfaces. SAE fluid specifications indicate the appropriate colour for each of the Types of fluids, as follows:

  1. Type I fluids:  Orange colour.
  2. Type II fluids:  Colourless or a pale Straw colour.
  3. Type III fluids:  TBA.
  4. Type IV fluids:  Emerald Green colour.


If the colour of the fluid being applied to the aircraft is NOT the colour anticipated, the procedure should be stopped and the situation investigated.