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Class A Foam Concentrate 5-gallons



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, KNOCKDOWN 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.

• 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

• Structural Firefighting
• Forestry
• Mining
• Industrial
• Tire Fires
• Hydrocarbon Spill Control

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%

Also available in 55-Gallon Drums and 275-Gallon IBC Reusable Tanks. Please call  888-766-5627 for details.


Price: $215.00




Home Firefighting Pump System
Barricade Fire Blocking Gel 1 Gallon
Eductor Nozzle for Fire Hose Systems
10,000 Gallon Self Supporting Water Tank

Barricade Garden Hose Eductor Nozzle


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.

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© 2018 JJS Fire Supply All rights reserved. JJS Fire Supply, logo and all other marks contained herein are trademarks of JJS Fire Supply Intellectual Property and/or our affiliated companies. JJS Fire Supply or Pool Mart, Inc assumes no responsibility or liability for any property damage, bodily injury, or loss of life that may be associated with attempting to use our fire pump systems during an active wildfire. We always recommend that you ensure your personal safety above anything else, adhering to your local firefighter's instructions and evacuation orders. Do not hesitate to call 911 during a wildfire emergency.