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High Expansion Foam
Concentrates -
These agents are synthetic based and are suitable for use
with low, medium or high expansion foam generating
equipment. Normally used at a proportioning rate between 1
and 3%, they are used in contained areas such as
mining
operations,
ship hold areas, etc. where volume
fire control is required. A high expansion generator can be
used to fill the entire area with a large amount of very
light, expanded foam bubbles, and depending upon the type of
generator, ratios of up to 1,000 to 1 can be achieved. Fires
involving solid materials as well as
flammable liquids
can be controlled and extinguished. High expansion foam
also has special advantages in dealing with spills of
Liquefied Natural Gas (LNG).
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