The Amerex "soft flow" extension applicator is particularly suited for fighting Class D fires. It keeps the operator away from the extreme heat and toxic fumes caused by burning material. The easily controlled, even discharge provides a non-dispersing application of the agent. The applicator may be quickly detached to provide a straight stream of chemical where greater range, a narrow discharge pattern or a lobbing effect is required.
Model B571 contains a copper extinguishing agent specially developed by the U.S. Navy for fighting lithium and lithium alloy fires. The copper compound smothers the fire and provides an excellent heat sink for dissipating heat. Copper powder has been found to be superior to all other known fire extinguishing agents for lithium.