Class B Foam

Perimeter Solutions offers one of the world’s broadest and most technologically advanced portfolios of Class B firefighting foam concentrates. We have been innovators in this area for over 50 years.

Flammable liquid fires (Class B) require specialized foams that are designed to both extinguish a fire and prevent reignition or burnback. Aqueous film-forming foams (AFFF) and alcohol-resistant AFFF (AR-AFFF) form a film between the fuel and the air, sealing the surface and preventing the escape and ignition of flammable vapors. AR-AFFF is specially designed to prevent polar solvents from destroying the foam blanket. AFFF and AR-AFFF come in a variety of formulations with varying mix rates (1%, 3% or 6%), viscosities, and freeze points.

Selecting the proper product for your application is essential. Class B firefighting foams are typically used in chemical and petrochemical plants, refineries, oil and gas storage facilities, flammable liquid storage facilities, airports, and anywhere flammable liquids are stored or used.

In addition to AFFF and AR-AFFF, Perimeter Solutions offers fluorine-free foams formulated to fight both hydrocarbon and polar solvent fires, training foam and other specialty foams.

The chart below can help you gain information on Perimeter Solutions complete line of PHOS-CHEK® (AUXQUIMIA®) and SOLBERG® fluorine-free Class B firefighting foams.

Help Me Decide

AFFF Foam
Premium 1% AFFF [UL, ULC, EN]
Premium 3% AFFF [UL, ULC, FM, EN]
Premium 6% AFFF [UL, ULC, EN]
MIL-SPEC 3% AFFF [MIL-PRF-24385]
MIL-SPEC 6% AFFF [MIL-PRF-24385]
Premium 1% AFFF FP [UL, ULC, EN]
Premium 3% AFFF FP [UL, ULC, EN]
AR-AFFF Foam
1×1% AR-AFFF LV [UL, ULC, EN]
Premium 1×3% AR-AFFF [UL, ULC, EN]
Premium 3×3% AR-AFFF [UL, ULC, FM, EN]
Premium 3×3% AR-AFFF FP [UL, ULC, EN]
1×3% AR-AFFF LV [UL, ULC, EN]
Premium 3×3% AR-AFFF [UL, ULC, EN]
Fluorine-Free Class B Foam
SFFF 1% – Hydrocarbon Fuels [UL, ULC, EN]
SFFF 3×6% AR [UL, ULC, EN]
Multi-Purpose 3x3 Fluorine-Free Foam Concentrate
Multi-Expansion Foam
2% High-Expansion Foam [EN]
Training Foam
3% Training Foam, AFFF Simulation
Training Foam, AR-AFFF Simulation

CLASS B FOAM Technical Bulletins