Middle expansion foam concentrates is made up of foaming agent, booster solvent, stabilizer and water. Thanks for the special performances of the foam, the expansion of the foam is larger than the low expansion foam; and the quality of the foam is higher than the high expansion foam. Therefore, besides the fire extinguishing in underground, pits, airplane parking house, coalmine, oil depot and ships, it may also play effective role in putting out fires of non soluble liquids in large area.


Items
Technical data
PH value(20¡æ)
6.5~9.0
Fluidity
Flux exceeds than standard reference liquid
Expansion ratio(20¡æ)
¡Ý50
25% drainage time(20¡æ),min
¡Ý5.0
50% drainage time(20¡æ),min
¡Ý10.0
Fire Extinction time,s
¡Ü120
1% burnback time,s
¡Ý30

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