| Model
570 contains a specially blended Sodium Chloride based dry powder
extinguishing agent. Heat from the fire causes it to cake and
form a crust excluding air and dissipating the heat from the
burning metal. Metal fires involving magnesium, sodium (spills
and in depth), potassium, sodium potassium alloys, uranium and
powdered aluminium can be controlled and extinguished with this
unique extinguisher. Model 571 contains a copper extinguishing
agent specially developed by the U.S. Navy for combatting fires
in lithium alloys. The copper compound smothers the fire and
provides an excellent heat sink for dissipating the heat of the
fire. It is the only known Lithium fire fighting agent which
will cling to a vertical surface, thus making it the preferred
agent on three dimensional and flowing fires. |