Understanding Foam Concentrate Classifications: AFFF vs. AR-AFFF
Foam concentrates work remarkably well for dealing with fire. The invention of foam as a fire extinguishing agent was a great upgrade from the water-based extinguishers. These concentrates contain a primary active agent called surfactants, solvents, stabilizers and water. In its initial developments, it had protein foam, but it was easily contaminated with flammable liquids. […]
