AFFF ARC 3×3 Supplied by Dafo Fomtec
Fomtec AFFF ARC 3×3 firefighting foam is intended for use on class B hydrocarbon fuel as well as on polar solvent i.e Isopropanol, Methanol etc and other foam destroy-ing product fires such as MTBE.
It uses only half the quantity to extinguish polar solvent fires in comparison to the traditional 3×6 foam concentrates.
It can be used with both aspirating and non-aspirating discharge devices. It is compatible with all dry chemical powders. The product conforms with UL 162.
Fomtec AFFF ARC 3×3 is a high efficiency multi purpose film forming foam (3×3). The main advantage of Fomtec ARC 3×3 is the 3% induction ratio on ALL class B fires, including polar solvents, in fresh or seawater.
Characteristics for film forming foam are that it spreads rapidly across a fire. As a result, it is highly effective against hydrocarbon fires. Adding special polymers ensures it is also highly effective against polar solvents.
The low surface tension of the water foam concentrate solution enables the aqueous film, which is heavier than the burning liquid, to float on top of the hydrocarbon liquid surface.
When applied on polar solvents a polymeric membrane makes it possible for the foam blanket to extinguish effectively. This works also on foam destroying liquids such as MTBE.
Fire Performance & Foaming
Fomtec AFFF ARC 3×3 has been designed to give the best properties of:
Aqueous film forming foam
Alcohol resistant foam
The fire performance of this product has been measured and documented according to “International Approvals” stated in this document. Has been tested to and found to comply with Lastfire Protocol with good results. The foaming properties are depending on equipment used and other variables such as water and ambient temperatures. Average expansion 7:1, average ¼ drainage time 09:00 minutes using UNI 86 test nozzle.
AFFF ARC 3×3 supplied by Dafo Fomtec
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