• Fomtec LS EXP
  • Fomtec LS EXP

Fomtec LS EXP foam


Fomtec LS EXP high expansion foam concentrate is superior for use in any High expansion system. It is consisting of hydrocarbon surfactants blended with various solvents and stabilizers. It does not contain any fluorinated surfactants or polymers (PFAS) or other organohalogens. Fomtec LS EXP foam should be used at 2-3% concentra-tion in fresh or sea water if medium or high expansion foams are required depending on equipment used.

  • Fluorine Free
  • 100% Biodegradable
  • High Performance Multipurpose & High Expansion Foam
  • Approved EN 1568, ISO 7203 and IMO 670 as High Expansion Foam
  • Tested with Inside Air
  • Documented filling height up to 35 meters

We supply Fomtec LS EXP foam in 25 litre, 200 litre, 1000 litre IBC containers. Larger bulk supply is available on special request.

International approvals

  • MO 1312
  • MED Wheelmark


More Information


Fomtec LS EXP high expansion fire fighting foam is a multi-purpose foam which can be used at low, medium and high expansion on class B hydrocarbon fuels such as diesel, gasoline, oil and aviation fuel. Fomtec LS EXP high expansion fire fighting foam has been tested with use of “inside air” during fire and has shown very high efficiency under such conditions, being able to extinguish both large class A and class B fires. Tests with inside air also showed very good extinguishing capabilities of E85 fuel that consist of 85% Ethanol. At medium and high expansion, Fomtec LS EXP high expansion fire fighting foam can be used for total flooding of confined areas with fires involving class A and B materials. Medium expansion is particularly suitable for small areas such as cellars and basements of buildings and high expansion type for large areas such as warehouses, ship cargo or engine rooms. LS EXP has also been tested on LNG fires with satisfactory result as gas suppressant, creating a foam lid on the LNG surface.

Fire performance & Foaming
The fire performance of this product has been measured and documented according to “International Approvals” stated
in this document. The foaming properties are depending on equipment used and other variables such as water and ambient temperatures. Average low expansion 9:1, average ¼ drainage time 9:30 minutes using UNI 86 test nozzle.
Used in Fomtec high expansion generators the average values to the right can be expected

Fomtec LS EXP high expansion fire fighting foam is compatible with all water types. It is compatible with foam compatible dry chemical powders as well as other expanded foam types. For mixability with other foam concen- trates, please contact Fomtec. For material compatibility please refer to Fomtec Technical Advices FTA 20 addressing the topic.

Fomtec LS EXP high expansion fire fighting foam is formulated using raw materials, specially selected for their fire performance and environmental profile. The product is totally free from fluorinated surfactants, polymers and other organohalogens, and does not contain any PFOS or PFOA. Fomtec LS EXP foam is 100% biodegradable.The handling of spills of concentrate or foam solutions should however be undertaken according to local regulations. Usually sewage systems can dispose foam solution based on this type of foam concentrate. But local sewage operators should be consulted.
Full details will be found in the Material Safety Datasheet

Storage/Shelf life
Stored in original unbroken packaging Fomtec LS EXP foam will have a long shelf life. Shelf life in excess of 10 years will be found in temperate climates. As with all foams, shelf life will be dependent on storage temperatures and conditions.

All foam concentrates should be tested annually. Testing should be carried out by an approved laboratory certified. As to assess firefighting foam quality, according to relevant standards, such as NFPA 11, EN 13565-2, EN 1568 and IMO MSC.1Circ. 1312. 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.



Dafo Fomtec AB is a privately owned company with head office in Stockholm, Sweden and manufacturing in Helsingborg in the south of Sweden.Fomtec's philosophy is that any foam system must consist of components that have been tested and approved for its intended use as a part of a system proven to work in harmony.This is critically important when using fluorine free foams because the effectiveness of these foams is much more dependent on the quality (expansion ratio, drainage time and bubble structure) of the foam generated by the system, than fluorinated foams are.Fomtec is committed to meet and exceed the standards we set behind our company’s core values of: Performance • Trust • Sustainability