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  • Products
    • Fire Retardant
      • For Wildland
        • PHOS-CHEK 259-fx
        • PHOS-CHEK FORTIFY B
        • PHOS-CHEK FORTIFY W
        • PHOS-CHEK LC95A
        • PHOS-CHEK LC95A-Fx
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      • Retardant Price List
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      • For Municipalities
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        • FIRST RESPONSE
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      • For Wildland
        • PHOS-CHEK WD881
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        • FIRST RESPONSE
        • PHOS-CHEK SOLID
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        • 3×6 AR Fluorine Free Freeze Protected
        • PHOS-CHEK Multi-Expansion H930
        • PHOS-CHEK EE-3% Training Foam
        • PHOS-CHEK TF-136 Training Foam
      • For Municipalities
        • PHOS-CHEK 1% FF CLASS A/B FOAM
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        • PHOS-CHEK 3×3 AR-AFFF Freeze Protected
        • PHOS-CHEK 3×3 AR-AFFF Low Viscosity
        • PHOS-CHEK 3×6 AR-AFFF
        • PHOS-CHEK Multi-Expansion H930
        • PHOS-CHEK EE-3% Training Foam
        • PHOS-CHEK TF-136 Training Foam
        • PHOS-CHEK 1% Fluorine Free
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        • PHOS-CHEK INSUL-8
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Wildland Homeowners Municipal Industrial/Military
  • Municipal
  • Class A Foam
  • PHOS-CHEK WD881C

PHOS-CHEK WD881C

PHOS-CHEK WD881C Class A foam concentrate is specially formulated to make water more effective for firefighting. WD881C provides the same superior foam characteristics that you expect from PHOS-CHEK WD881 but disperses well, exhibits a lower viscosity, and provides improved aerial visibility when mixed with extremely cold water. PHOS-CHEK WD881C was developed specifically for use in northern regions where night time freezing temperatures are common during the early spring and late fall fire season. Low viscosity at cold temperatures allows the foam concentrate to be readily mixed using eductors, proportioners, and injection devices, even at near or below freezing temperatures.

The unique combination of surfactants in WD881C 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. The foam blanket creates a barrier between the fuel and the fire, knocking down the fire faster than water alone and allows fire fighters to see the areas of application. The reduced surface tension allows the water to penetrate deep into Class A fuels rather than beading up and rolling off before it can be absorbed. Making the water more effective reduces the amount of water needed to extinguish the fire and increases fire fighter safety through quicker knockdown and reduced mop-up/overhaul requirements.

Both PHOS-CHEK WD881 and WD881C are the most concentrated Class A foam products available today. Many available products contain significantly more water in the concentrate. The extra water in the concentrate means higher use rates will be required to achieve expected results. WD881C is compatible with fresh water, sea water and long-term retardant. Foam characteristics are not affected by freeze-thaw.

WD881C foam concentrate does not contain PFAS chemicals including, but not limited to, PFOS or PFOA. Fluorinated surfactants are used in Class B foam  concentrates and are necessary to form a film on flammable liquid fires. Class B foams should not be used on Class A fires. Never mix Class A and Class B foam concentrates.

Available Options:

Package Size

20 Liter Pail, 260 Gal Tote, 5 Gal Pail, 55 Gal Drum, Bulk

Product Form

Liquid Concentrate

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Municipal Products

Which product do you need? Find what you're looking for here.

  • Class A Foam

    Class A Foam improves water effectiveness. Provides fast knock down. Slows evaporation and improves penetration in deep seated fires. Perfect for CAFS.

    Explore
  • Class B Foam

    Class B foam is required for protection from and suppression of flammable liquid fires. Typical applications include chemical and petrochemcial plants, refineries, aircraft rescue and fire fighting, LPG/LNG terminals, etc.

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  • Class A/B Foam

    Quickly extinguishes and prevents reignition for flammable liquid pool fires. Ideal for storage tanks, railcars, automobile gas tanks, or any fire involving flammable liquid storage.

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  • Fire Extinguisher Additives

    Liquid fire extinguishers are highly effective and cause far less peripheral damage than powder extinguishers. Class a or Class B additives significantly improve their effectiveness.

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  • Gel for Municipalities

    Fire suppressant gel is thickened water typically used to coat a structure to protect it from impinging fire. Gel wraps a “blanket of water” around any structure, keeping it cool and preventing ignition from nearby fires.

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