6% AFFF Military Spec

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Chemguard 6% AFFF Military Spec is a specially formulated synthetic aqueous film forming foam concentrate. A vapor suppressing aqueous film is formed by the foam solution draining from the expanded foam blanket. This foam is intended for use at a proportioning rate of 6% (6 parts concentrate to 94 parts water) on Class B hydrocarbon type fuels such as gasoline, kerosene, diesel, etc. AFFF type concentrates are not intended for use on fuels, which are polar solvent/water miscible such as alcohols, ketones, esters, etc.


  • U.L. Listed, Foam Liquid Concentrates
  • U.L. recommended application rate on hydrocarbon type fuels is .10/gpm ft.²
  • FM Approved
  • Listed on the QPL (Qualified Products List) for MIL-F-24385F. Subsequently these products conform to all performance and compatibility requirements.
  • Military products are characterized by extinguishment speed
  • Suitable for use with fresh or salt water
  • Excellent wetting characteristics when used in combating Class “A” fuel fires
  • Suitable for use with both aspirating foam and standard water fog nozzles
  • Suitable for use with deluge or closed head foam water sprinkler systems
  • If inadvertently frozen, thawing will render product completely serviceable again
  • Suitable for use with carbon steel, fiberglass, polyethylene or stainless steel. Chemguard MS-AFFF concentrate is not compatible with galvanized pipe or fittings in an undiluted form.
  • Suitable for use with siliconized dry chemical extinguishing agents


  • Fixed or portable in-line eductors
  • In-line balanced pressure and pump pressure proportioning skid
  • Bladder tank balanced pressure proportioning systems
  • Around the pump proportioners
  • Handline, air-aspirating nozzles with fixed eductor pickup tube


  • Foam Chambers
  • Air-aspirating and non air-aspirating sprinkler heads or spray nozzles
  • Standard water fog nozzles for handlines and monitors
  • Air-aspirating foam nozzles
  • Foam makers for use with either Floating Roof storage tanks or Dike/Bund protection systems
  • High back pressure foam makers for subsurface base injection system (hydrocarbon type fuels only)


  • Crash Fire Rescue
  • Storage Tanks (non-polar solvent fuels only)
  • Truck/Rail Loading or Unloading Facilities
  • Processing/Storage Facilities
  • Docks/Marine Tankers
  • Flammable Liquid Containment Areas
  • Mobile Equipment


Aspirating type discharge devices typically generate expansion ratios between 6-10 to 1 when mixed with water at the correct ratio. Non-aspirating type devices will typically generate expansion ratios of between 2-4 to 1. Expansion ratios are dictated by the type of discharge devices, flow rate and discharge pressure.


Appearance Clear Slightly Yellow
Specific Gravity 1.06
pH 7.9
Viscosity 5 cps


Chemguard 6% AFFF Military Spec. is compatible with any other comparable AFFF manufactured in accordance with and conforming to all performance requirements of U.S. Military Spec Mil-F-24385F or any preceding version of this specification.


Chemguard C601MS is biodegradable, low in toxicity and can be treated in sewage treatment plants. Please refer to Chemguard Technical Bulletin regarding foam products and the environment.


If kept in the original unopened and airtight Chemguard supplied container and stored within the temperature range of 35ºF - 120ºF (2ºC - 49ºC) a shelf life of between 20-25 years can be expected. When stored in other than the manufacturers supplied container, please check with Chemguard for storage guidelines.


Part No: Container Weight
C601MSP 5-Gallon Pail / 19 Liters 47 lbs.
C601MSD 55-Gallon Drum / 208 Liters 520 lbs.
C601MSBD 330-Gallon Tote / 1249 Liters 3120 lbs.