what is aqueous film forming foam
Buckeye 6% AFFF is an advanced totally synthetic, aque-. ous film forming foam concentrate. A vapor suppressing. aqueous film is formed by the foam solution draining from. the expanded foam blanket. It is intended for use at a. proportioning rate of 6% (6 parts AFFF concentrate to 94. parts water) on Class B Hydrocarbon type fuels such as. gasoline, kerosene and diesel.