Are all extinguishing foams the same?

Foaming agents come in many types and qualities. On the basis of the chemical composition and scope of application, we can roughly distinguish three main groups.

 

Synthetic foaming agent - AF, AFFF-AR, multi-purpose, High-Ex

Protein foaming agent - "Ox blood", FP, FFFP, FFFP-AR

Training foaming agent and "Wetting Agents" - Training foam, wetting agent, Class A foaming agent

 

Although the most popular types of foam are made by every foam agent manufacturer, they are not necessarily identical. Usually there are differences in, for example, frost resistance, viscosity or inspection certificates.