Aberdeen Foam 3% HI-EX (Potable Water)

High Expansion Foam (Hi-Ex) designed for use with Potable (Fresh) Water only

A new, versatile high quality High Expansion Foam concentrate for use with both medium and high expansion foam equipment.

Used at a concentration of 3% with fresh water, Aberdeen 3% HI-EX (Potable Water) produces very stable foams for control of Class A and Class B fires in confined spaces.

Quickly extinguishes and secures Class A fires of material such as paper, wood and tyres and Class B hydrocarbon fires of liquids such as crude oil, gasoline, aviation kerosene and fuel oil.

Fire Performance Approvals

Aberdeen Foam 3% HI-EX (Potable Water) concentrate accredited to International Foam Standard:

  • EN 1568: 2008 Part 2

For further information or to request a copy of our certificate, please contact us.

Environmental Impact

  • Biodegradable - meets requirements of EC648/2004
  • Water based
  • Fluorine free
  • Not classified as hazardous to the environment



Formulated for use with fresh water, Aberdeen Foam 3% HI-EX (Potable Water) produces a very stable foam for combating Class A and Class B fires.

Provides three dimensional fire control and ideal for use in the total flooding of confined areas, such as:

  • Cellars and basements
  • Machinery rooms and voids
  • LNG tank storage bunds
  • Ship holds and engine rooms
  • Aircraft hangar systems
  • Warehouses

With medium expansion foam equipment, Aberdeen Foam 3% HI-EX (Potable Water) offers advantages over Low Expansion Foams in the control of cryogenic flammable liquid fires or as a vapour suppression foam on toxic liquid spills.

Suitable for use in both tropical and cold climates, with maximum and minimum storage and use temperatures of 50°C and -10°C.

Not suitable for use on fuels which are polar solvents and water miscible such as alcohols, ketones, aldehydes and ethers, or for the control of pooled liquid fires in the open.

Also suitable for use for training purposes.

Proportioning Information

Aberdeen Foam 3% HI-EX (Potable Water) foam concentrate is intended for use at 3% (3 parts foam concentrate to 97 parts fresh water).

Designed for use with both:

  • High expansion foam equipment
  • Medium expansion foam equipment


Physical properties


Clear colourless liquid

Specific gravity


pH @ 20°C


Surface tension @ 20°C (N/m)


Freezing point (°C)


Lowest use temp. (°C)


Max. storage temp. (°C)


Min. storage temp. (°C)


Freeze/thaw effect




Expansion properties (typical)

High Expansion


Expansion ration


50% drainage time

10 minutes 30 seconds

Medium Expansion


Expansion ratio


50% drainage time

4 minutes 33 seconds

Low Expansion


Expansion ratio


25% drainage time

8 minutes 42 seconds

Foam quality will depend on the foam equipment used and the operating conditions. The above are tested in accordance with UK Defence Standard 42-40.

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EN1568 2 Fluorine Free