6% Training Foam Concentrate (TF)

A fluorosurfactant free training foam which mimics the application and physical properties of Angus Petroseal 6% FFFP fire fighting foam.

TF6 is a natural protein based product which mimics the performance of Angus PetrosealC6 6 FFFP, an aviation industry standard for protein based fire fighting foams, to provide realistic fire training without the use of fluorinated chemicals.

Angus Fire has a commitment and long track record of formulating foams for minimal environmental impact and maximum performance. A key element of this responsibility is to use a natural organic base material, control and reduce the quantities of fluorosurfactants and other chemicals that could be released into the environment.

The use of low toxicity training foams permits front-line fire fighters to be continuously trained in critical fire fighting techniques to ensure high performance standards of readiness are maintained. This also allows proven fluorosurfactant products to minimise the risk to fire fighter safety in the event of an emergency.

The potential for conflict between all these objectives is clear, no more so than in aviation fire fighting. Angus Fire has developed TF6 Fluorine Free Foam (F3) for training to eliminate this conflict. It now allows foam users to meet their key objectives and responsibilities within the legislative requirements.

  • Fluorosurfactant free
  • Mimics the application and physical properties of Angus Petroseal 6% FFFP
  • Low toxicity

Performance Approvals  

TF6 was developed to meet the stringent environmental and regulatory requirements of the aviation sector, while complying with European regulatory requirements including those of the UK Civil Aviation Authority and Environmental Agency.

Environmental Impact   

TF6 is formulated for minimum environmental impact. It is produced from natural proteins, and is free of fluorinated chemicals, glycol ethers, biocides and zinc. It is also readily biodegradable. TF6 has exceptionally low aquatic toxicity to fresh and seawater organisms. It contains no synthetic detergents and so will not carry hydrocarbons through fuel separators.


TF6 is suitable for use in training with conventional foam induction and delivery equipment such as the Angus Hi-Combat range of portable foam equipment. It is not recommended for real life fire fighting incidents.


6% induction is recommended to mimic the induction performance and foam quality characteristics of PetrosealC6 6. 

Physical properties


Dark brown liquid

Specific gravity

1.11 - 1.14


6.5 - 8.0

Viscosity @ 20°C (mm2 sec-1


Max. continuous storage temp. (°C)


Max. intermittent storage temp. (°C)


Freezing point (°C)


Min. use temp. (°C)


Expansion ratio*

≥ 7.5:1

25% Drainage time*

≥ 5 minutes

* 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.

Additional Information 

For additional information on fire fighting foam concentrates including C6 foams, foam testing, compatibility, shelf life and pack sizes, please refer to our FAQs section.

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Fluorine Free