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T-STORM WTS303A 3x3 AR-AFFF (Alcohol Resistant Aqueous Film-Forming Foam) Concentrate from WILLIAMS FIRE & HAZARD CONTROL combines fluoro- and hydrocarbon-surfactant technologies to provide superior fire and vapor suppression for Class B, polar solvent and hydrocarbon fuel fires. This synthetic foam concentrate is intended for forceful or gentle firefighting applications at 3% solution for hydrocarbon fuels and gentle firefighting applications at 3% solution for polar solvent fuels in fresh, salt, or hard water.

Approvals, Listings, and Standards

T-STORM WTS303A 3x3 AR-AFFF Concentrate is designed in accordance with National Fire Protection Association (NFPA) Standard 11 for Low-, Medium-, and High-Expansion Foam. The concentrate is approved, listed, qualified under, or meets the requirements of the following specifications and standards: 

  • UL Standard 162, Foam Liquid Concentrates 
  • ULC S564, Category 2 Foam Liquid Concentrate 
  • EN 1568: 2008 
    • Parts 1, 3, 4


T-STORM WTS303A 3x3 AR-AFFF Concentrate is intended for use on both types of Class B fires: hydrocarbon fuels with low water solubility, such as crude oils, gasolines, diesel fuels, and aviation fuels; and polar solvent fuels with appreciable water solubility, such as methyl and ethyl alcohol, acetone, and methyl ethyl ketone.

To provide even greater fire protection capability, T-STORM WTS303A foam solution may be applied simultaneously with WILLIAMS FIRE & HAZARD CONTROL PKW dry chemical for a twin-agent system. When using a twin-agent application on polar solvent fuels, take care with the velocity of the dry chemical discharge to minimize submergence of the polymeric membrane below the fuel surface. T-STORM WTS303A Concentrate can be ideal for semi-fixed, and emergency response firefighting applications such as: 

  • Industrial chemical and petroleum processing facilities 
  • Truck/rail loading and unloading facilities 
  • Flammable liquid containment areas 
  • Mobile equipment

Ordering Information

T-STORM WTS303A 3x3 AR-AFFF Concentrate is available in pails, drums, totes, or bulk shipment. 

Part No. Description Approximate Shipping Weight
704172 5 gal (19 L) 45 lb (20.4 kg)
704172E 5 gal (19 L) 45 lb (20.4 kg)
704173 55 gal (208 L) 495 lb (224.5 kg)
704173E 55 gal (208 L) 495 lb (224.5 kg)
704174 265 gal (1,003 L) 2,463 lb (1,117 kg)
704174E 265 gal (1,003 L) 2,463 lb (1,117 kg)
704175 320 gal (1,211 L) 2,963 lb (1,344 kg)

For bulk orders, consult an account representative.
*Totes are not UL/ULC approved packaging.



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