ARC 1×3 Ultra foam concentrate

Fomtec ARC 1×3 Ultra is an alcohol resistant aqueous film forming foam concentrate (AFFF-ARC) consisting of a blend of fluorocarbon-, hydrocarbon surfactants and polymers, various solvents and stabilisers. All Fomtec AFFF-ARC foam concentrates are formulated with 100% C6 Pure fluoro-surfactants and fluoro-polymers. On hydrocarbon fuels, Fomtec ARC 1×3 Ultra utilises the unique film forming effect to cut off oxygen supply to the fire and the oleophobic properties of the foam enables a stable foam blanket to prevent reignition of the fire. With polar fuels, a polymeric membrane is formed that suppresses vapours and allows the foam blanket to survive on the water miscible fuel surface.


  • Short chain C6 Pure fluorochemistry
  • UL Listed
  • Freeze protected
  • Suitable for Class A and B fires
  • Low and medium expansion foam
ARC 1x3 Ultra


Fomtec ARC 1×3 Ultra should be used at a 1% proportioning ratio (1 part concentrate and 99 parts of water) for hydrocarbon fuels and 3% ratio (3 parts concentrate and 97 parts water) on polar solvent fuels. May be used with all water types. For use on Class A type fires, a proportioning ratio of 0,3% to 1% is recommended depending on application and discharge device.


Fomtec ARC 1×3 Ultra is tested according to UL 162 7th Edition on class B hydrocarbon fuel fires such as oil and diesel as well as polar solvent fires such as IPA and acetone. Can also be used on class A fires such as wood, paper, textiles etc.

Typical applications include high risk installations such as:

  • Storage tanks, process areas and loading racks
  • Waste and recycling industry
  •  Fire rescue departments

Fire performance & Foaming

The fire performance of this product has been tested and documented according to the “International Approvals” stated in this document. The use of the product should follow design guidelines appropriate to the type of system and application. The foaming properties are depending on equipment used and other variables such as water and ambient temperatures. Average expansion 5:1 (1%) & 8:1 (3%), average 25% drainage time 3:20 (1%) & 15:00 (3%) minutes using UNI 86 test nozzle according to EN 1568-3.


*) See detailed viscosity data in the TDS

Typical data

Appearance Pale yellow liquid
Specific gravity at 20°C 1,030 ± 0,020 g/ml
Viscosity Pseudoplastic*
pH 6,1 – 7,1
Freezing point ±0˚C
Recommended storage temperature 1˚C - 55˚C
UL Minimum storage temperature 1,7 ˚C
Suspended sediment (v/v) < 0,1%


Fomtec ARC 1×3 Ultra can easily be proportioned at the correct ratio using conventional proportioning equipment. The equipment should be designed to the foam type. Fomtec ARC 1×3 Ultra is suitable for use with Type II (gentle application) and Type III (direct application) discharge devices as well as sprinklers according to EN 13565-2. It can be used in low and medium expansion applications with all conventional aspirating and non-aspirating discharge devices.  Fomtec ARC 1×3 Ultra is also suitable for use in CAF-systems.


Fomtec ARC 1×3 Ultra can be used together with foam compatible powders and other expanded foams. It is suitable for all water types.
For mixing with other foam concentrates, contact Fomtec for advise and guidance. For material compatibility please refer to Fomtec Technical Advices FTA 20 addressing the topic.

Storage / Shelf life

Stored in original unbroken packaging the product will have a long shelf life. Shelf life in excess of 10 years will be found in temperate climates. As with all foam concentrates, shelf life will be dependent on storage temperatures and conditions. For storage recommendations and material compatibility please refer to Fomtec Technical Advices FTA 10 addressing the topic.

ARC 1x3 Ultra

Inspection / Testing / Maintenance

All foam concentrates should be tested annually. Testing should be carried out by an approved laboratory certified to assess firefighting foam quality according to relevant standards, such as NFPA 11, EN 13565-2, EN 1568. Storage containers should be inspected and reevaluated for the suitability of the storage location regarding temperature fluctuations (temperature should be as stable as possible). Exposure to direct sunlight should be avoided.


We supply this product in 25 litre or 5 US gallon cans, 200 litre or 55 US gallon drums, and 1000 litre or 265 US gallon IBC containers. Larger bulk supply is available against special request.

International approval

  • UL Listed according to UL 162 7th Edition
  • EN 1568 part 3
    Class IB Fresh water/Class IB Sea water
  • EN 1568 part 4
    Class IA Fresh water/Class IA Sea water
  • Lastfire Good/Good/Good