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AFFF is a PFC based foam agent, ColdFire is a water wetter - you cannot compare the two.
There are other foam agents available, alcohol resistant foams, protein based foams, even PFC-free foams have become available on the market - but these are not AFFF foams.
I´m not saying a foam based system is not good - its very very good at what its made for. I would use it too if my car cought fire.
But the fact is still that the AFFF contains flours that are not good for you and very corrosive.
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