Fomtec LS EXP 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 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 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 is compatible with all water types. It is compa- tible 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 is formulated using raw materials specially selected for their fire performance and their environmental profile. The product is totally free from fluorinated surfactants and polymers and other organohalogens, and therefore it does not contain any PFOS or PFOA. Fomtec LS EXP is 100% biodegradable. The handling of spills of concentrate or foam solutions should however be undertaken according to local regulations. Normally 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
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 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 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.