National Foam Knockdown Class A
Concentrate 5-Gallon Container (compatible with our Fire Hose
Systems)
Environmentally responsible KNOCKDOWN®, Class A foam
concentrate, is a unique new formulation providing unmatched
firefighting performance and flexibility. KNOCKDOWN is specially
designed for use in Class A/B foam systems and is excellent for
Compressed Air Foam Systems (CAFS). Foam Eductor Nozzle
Kit for Fire Hose System sold separately.
KNOCKDOWN foam concentrate works in two ways. First,
it improves the penetrating capability of water. It
reduces the surface tension of plain water which allows it to
penetrate surfaces where water might normally run off, to reach
deep-seated fires. This helps reduce the amount of water
required to extinguish the fire and also provides quicker
knockdown. Secondly, KNOCKDOWN increases the heat absorbing
capabilities of water. Foaming ingredients give water the
ability to adhere to vertical surfaces which allows the water
longer contact with the fuel. The longer the water is in contact
with the fuel, the more heat it is able to absorb. A coating of
Class A foam may also be used for exposure protection to prevent
fuels from igniting by raising their moisture content and
providing a tough protective barrier to an oncoming flame front.
Features:
• Meets USDA Forest Service Requirement per Specification
5100-307.
• Environmentally responsible formulation.
• U.L. Listed as a Wetting Agent, at substantially lower usage
rates than most Wetting Agents.
• Premix is stable for more than 30 days (using potable water),
which is significantly longer than traditional Class A foam
solutions.
• Emulsifies Class B Hydrocarbon fuels.
• Contains NO alcohols for higher flash point
KNOCKDOWN is the first agent designed to meet
the stringent approval requirements of both the US Dept. of
Agriculture and Underwriters Laboratories.
Typical Proportioning Settings
U.L. Listed Wetting
..............................................0.3%
Class B, Hydrocarbon Spill Emulsification........0.3%
Structural Fire, Attack and Overhaul ......0.5%- 0.7%
Exposure Protection, Aspirated................0.7%-1.0%
Compressed Air Application ........................0.1-0.5%
Air Attack: Water Bombers/Helicopters ......0.3%-0.6%
Suggested Structural Fire Application Rates
Fully Involved, Well Vented..............0.33 gpm/sq. ft.
Half Involvement ..............................0.17 gpm/sq. ft.
Quarter Involvement........................0.09 gpm/sq. ft.
Overhaul ............................................5-10 gpm/sq.
ft.
Also available in 55-Gallon Drums and 275-Gallon
IBC Reusable Tanks. Please call 888-766-5627 for details.
JJS Fire Supply is your source for all your Home Wildfire Protection needs. We offer a variety of products, including Barricade Fire Gel and Class A National Foam designed to protect your home from the destruction of wildfires. If you are a government agency or local municipality, please call for large quantity discounts.