Sku: 21031



Class A Foam

Class A fires are the most common application for Class A foams which are effective on three-dimensional, organic materials such as wood, paper and rubber. Class A foams were developed in mid-1980s for fighting wildfires. Class A foams lower the surface tension of the water, which assists in the wetting and saturation of Class A fuels with water. This aids fire suppression and can prevent re-ignition. Favorable experiences led to its acceptance for fighting other types of class A fires, including structure fires.

Phos-Chek WD 881 was developed specifically for use in Wildland Fire Management and at the rural/urban interface. The results obtained by Wildland Fire Management Agencies around the world prove its value. While providing excellent performance in wildland fires, this foam is less expensive and is used at lower concentrates (from .02% to 1%), making it a cost-effective tool in today's wildland fire activities.


  • Phos-chek is the most concentrated Class A foam available
  • Contains no EPA listed hazardous materials
  • Readily biodegrades in the environment
  • Extinguishes both Class A and B fires
  • Meets USDA Spec 5100-301a for aerial and ground application

Phos-Chek Class A Foam
concentrate is specifically formulated to make water more effective. The unique combination of surfactants significantly reduces water' surface tension and penetrates deep into Class A fuels, creating a barrier between the fuel and the fire, reducing the amount of water needed to fight fire. Class A Foam performs exceptionally well in foam application equipment including:

  • Batch-Mixing
  • Eductors and Around the Pump Systems
  • Direct Injection System
  • Compressed Air Foam systems (CAFs)


    Available in pallets of 48 5-gal. pails for Free Shipping. 5 gal. pails and 55 gal. drums also available with additional freight charged.

    Please call us 800-654-7049 to order other sizes.

    GSA pallet pricing available for Class A Foam.

    We currently only ship to addresses within the United States, and APO/FPO addresses.

    Most of our products ship via UPS. Tracking information via UPS shipment will be provided when your order ships.

    Items usually ship within 3-5 business days when in stock.

    Once order has been inputted, an order acknowledgment email will be sent by a member of our sales team.

    Please contact us at 800-654-7049 for expedited shipping requests.


    Our Shipping Policy provides detailed information on shipment processing time, shipment confirmation and ordering tracking, international shipping, shipping rates, damages, and returns.

    Phos-Chek WD 881 Wildland Foam

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