Niagara C6 3-3

3 x 3% High Fluidity Alcohol Resistant Film-Forming Foam Concentrate (AR-FFFP)

NiagaraC6 3-3 is a superior quality Alcohol Resistant Film-Forming FluoroProtein (AR-FFFP) fire fighting foam concentrate at 3% induction rate for extinguishing and securing both flammable hydrocarbon and polar solvent liquid fires.

  • Low viscosity – allows easy pouring and induction
  • Highly versatile - eliminates need to stock a variety of foam types
  • Detergent-free for high resistance to fuel pick-up
  • Foam blanket re-seals when disrupted by personnel or equipment
  • Suitable for use with fresh or sea water

Performance Approvals     

  • NiagaraC6 3-3 is independently tested and certified to EN1568:2008 Parts 3&4.
  • Audited and approved to Underwriters Laboratories UL162 (7th Edition).


Ideal for use in high-risk applications where polar solvents (such as alcohols, ketones, and ethers) and/or hydrocarbons (such as crude oil, gasoline, diesel fuel, aviation kerosene) are stored, processed or transported.

NiagaraC6 3-3 does not contain any polymers that cause conventional AR type concentrates to be viscous. It is therefore easy to pour from the drum when used with portable foam equipment. High fluidity means that proportioning is quick, easy and accurate with both portable inductors and fixed balanced pressure proportioners.


Intended for multipurpose use at 3% (3 parts concentrate to 97 parts water) on hydrocarbons & polar solvents.

Readily proportioned at 3% using conventional foam proportioning equipment such as portable and fixed foam proportioners. Newtonian fluid characteristics for easy pouring from drums over a wide range of temperatures.

Non-aspirated application is not recommended as the primary method of attack for major fires where a stable foam cover is essential. However, NiagaraC6 3-3 can be used with non-aspirating discharge devices such as spray nozzles, monitors, and conventional sprinklers for use on shallow spill fires of hydrocarbons only.

Air aspirating discharge devices such as low expansion branchpipes, monitors, top pourer sets, MEX Bund Pourers and foam/water sprinklers are all suitable for use with Niagara’s exceptional resistance to fuel contamination enables it to withstand vigorous mixing with hydrocarbon fuels. This makes it suitable for forceful application onto large hydrocarbon storage tank fires from ground-based mobile monitors or via sub-surface injection systems.

Physical properties


Dark brown free-flowing liquid

Specific gravity @ 20°C

1.14 - 1.18

pH @ 20°C

6.5 - 7.5

Viscosity @ 20°C  (mm2 sec -1)


Max. continuous storage temp. (°C)


Max. intermittent storage temp. (°C)


Freezing point (°C)


Freeze/thaw effect

No performance loss

UL lowest use temperature (°C)


Expansion ratio*

≥ 8:1

25% Drainage time minutes *

≥3’ 30“

* Foam generated using the U.K. Defence Standard DEF42-40 5 lpm branchpipe at 7 Bar pressure. Foam collected in a 1630 ml N.F.P.A. drainage pan.


Suitable for use in combination with:

  • Soft, hard, brackish and saline water.
  • Dry powder extinguishing agents either separately or in twin agent systems.
  • Expanded foams (either protein or synthetic based) for application simultaneously or sequentially to a fire.


NiagaraC6 3-3 is produced to rigorous quality control standards which ensure consistent fire performance and excellent product reliability.

Angus Fire operates a quality management system which complies with the requirements of BS EN ISO 9001.

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UL listed UL 162 EN1568 34 EPA 2015 compliant