Class B foams have two major subtypes. Synthetic foams are based on synthetic surfactants. They provide better flow and spreading over the surface of hydrocarbon-based liquids, for faster …

Nov 14, 2025 · Flammable and combustible liquids (Class B Fuels) require foams designed for rapid extinguishment and a secure foam blanket to prevent reignition. It is important that the foam blanket …

foams contain PFAS. What is the concern? While all Class B foams have the potential to create adverse environmental impact if they are released, fluorinated foams, including AFFF, are a. greater concern …

Class B foam consists of various ingredients designed to tackle flammable liquid fires effectively. Its unique formulation plays a key role in fire suppression, making it a favorite in firefighting circles.

Class B Foam Agents are the ideal fire suppression choice for hazards involving flammable and combustible liquids. A foam blanket is formed that works to prevent the release of fuel vapor and …

Apr 1, 2010 · Simply put, Class B foam is more hazardous than Class A. This doesn’t mean it isn’t a valuable tool for municipal departments, it just means firefighters must be aware of the hazards, and …

Learn about the uses, risks, and eco-friendly alternatives to Class B foam in firefighting.

Mil-Spec - Avio®F3 Green Mil 3% Synthetic Fluorine Free Foam (SFFF) concentrate delivers fast knockdown, strong burn-back resistance, and vapor suppression on Jet A, Jet A1, and gasoline fuel …

In the early 1960’s, 3M and the U.S. Navy developed Class B “aqueous film forming foam” (AFFF) type foams. Class B foams are used on flammable petroleum fires and spills.

ANSUL® Class B Foam Agents are the ideal fire suppression choice for fires involving flammable and combustible liquids. These agents suppress fire by blocking oxygen supply to the fuel, suppressing …