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PRODUCT

Phos-Chek Class A Foam

MODEL: WD881
PHOS-CHEK® WD881 Class A Foam concentrate is specially formulated to make water more effective for firefighting. The unique combination of surfactants in PHOS-CHEK WD881 significantly reduces water’s surface tension and, when mixed with air, creates a superior foam blanket that surrounds fuels with a thick layer of water. This creates a barrier between the fuel and the fire, knocking down the fire faster than water alone, and allowing firefighters to see the areas of application. Making the water more effective reduces the amount of water needed to extinguish the fire, reduces water damage, and increases firefighter safety through quicker knockdown and reduced mop-up/overhaul requirements. PHOS-CHEK WD881 is highly effective for fighting Class A fires when mixed with water at use rates of 0.1% to 1.0%. It has proven effective in many applications including Compressed Air Foam Systems (CAFS), structural firefighting, forest fire suppression and prescribed burning, mine fires, industrial Class A fires, and extinguishing hydrocarbon spill fires. PHOS-CHEK WD881 is the most concentrated Class A foam product available today. Other products contain significantly more water in the concentrate. This extra water means higher use rates will be required to achieve the expected results.
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Phos-Chek Class A Foam

  • Stretches out the water droplet into a bubble and holds it that way, increasing its heat-absorbing surface
  • Penetrates deep into Class A fuels
  • Has an affinity for carbon. PHOS-CHEK WD881 bonds with carbon like a magnet holding the water against the fuel. It grabs onto smoke greatly increasing visibility and reducing knockdown time
  • Reduces the amount of water needed to fight a fire because it uses it much more effectively. Using less water provides many benefits including:
    • Less property damage
    • Reduction of toxic products of combustion into the environment
    • Preservation of fire scene for arson investigation
    • Protects structures and fuels by blanketing the surface with bubbles
    • Increases firefighter safety through quicker knockdown and increased overhaul properties
  • Passes and exceeds U.S government Environmental, Health, Safety, and Corrosion standards and requirements by similar agencies around the world
  • Contains no EPA listed hazardous materials
  • Readily biodegrades in the environment and meets all technical requirements of the National Fire Protection Association (NFPA) Standard #1150
  • Extinguishes both Class A and B fires - passing UL Wetting Agent tests at the following use rates:
    • Class A Fire - Ordinary combustibles; wood, paper, plastic, rubber at 0.1% or 1 gallon of concentrate per 1000 gallons of water
    • Class B Fire - Flammable liquid hydrocarbon; gasoline, diesel fuel, kerosene at 0.25% or 2.5 gallons of concentrate per 1000 gallons of water
  • Smells like oranges. A proprietary ingredient only available in PHOS-CHEK WD881 Class A Foam
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