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Arrow Class A High Expansion Foam
$58.56 – $1,100.00
Forms a dense foam suitable to extinguish Class A fires.
High expansion foam extinguishes by a combination of 3 properties. Firstly to prevent air (oxygen) from supporting combustion. Secondly, provide a cooling and thirdly, water released from the foam contains wetting agents which facilitates penetration into the substrate and increases the rate of extinguishment.
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