Making Finished B-Foam is identical to making A-Foam (W + Conc (=Sol) + A + A = F). The difference being the Concentrate (Conc) and the % Solution (W + Conc). B-Foam is not a detergent, and is formulated for Class B Hydrocarbon Fuels and is generally mixed at 1%, 3% or 6% Solution.
Never use Class A Foam on a Class B Fuel or Fire!
Never use Class B Foam on a Class A Fuel or Fire!
B-Foam rejects carbon and is designed to form a vapor barrier over a contained spill.
A-Foam can reduce the surface tension of a hydrocarbon fuel causing it to seep deeper into the ground making recovery difficult and expensive. A-Foam does not form a vapor barrier leaving firefighters exposed to dangerous flash ignitions of hydrocarbon vapors. REPEAT – Do not use A-Foam on a B Fuel.
NFPA created the A, B, C & D fuel type classifications just for this purpose. Class A Foam is designed for Class A Fires. Class A Foam is water – not to be used on Class B, C or D Fires.
“B-Foam” requires separate and intensive training to DO NO HARM!!
NEVER MIX A & B Foams together.
For more information on B-Foam – visit the B-Foam Coalition Site.
