Foam fire extinguishing agent is a highly effective fire‑fighting material designed for flammable liquid fires. It works by forming a condensed floating foam layer on liquid fuel surfaces to achieve suffocation and cooling effects. As one core product in our fire‑protection solution portfolio, foam fire extinguishing agent can be classified into chemical foam, air foam, fluorine foam, water‑forming film foam (AFFF) and soluble foam for diverse industrial fire‑risk scenarios.
Fluorine Foam Extinguishing Agent (MPF)
Ordinary protein foam performs poorly when contacting oil‑layer fires. Once it passes through burning oil, oil contaminates the foam bubble structure, and oil inside bubbles will keep burning and destroy the whole foam blanket.
Fluorine foam extinguishing agent (MPF) solves this pain point by adding fluorocarbon surfactant into air foam solution to produce fluoroprotein foam. The fluorocarbon surfactant brings excellent surface activity, high thermal stability, great soaking performance and fluidity.
When fluoroprotein foam flows through oil layers, oil will not spread into foam bubbles; instead, oil is separated into tiny droplets wrapped inside clean foam. Even if foam contains up to 25% gasoline, the wrapped foam layer still stays non‑combustible. In comparison, ordinary air foam will fail when gasoline content reaches only 10% inside foam.
From our practical manufacturing and project experience, fluorine foam extinguishing agent (MPF) fits high‑temperature oil fire conditions and liquid jet fire suppression. It is widely selected for tank farm, refinery and petrochemical plant fire‑protection systems.
Water‑forming Film Foam Extinguishing Agent (MPQ / AFFF)
Water‑forming film foam extinguishing agent, also known as light‑water foam or widely called AFFF, is a vital subtype of fluorine‑based foam fire extinguishing agent.
Its formula consists of fluorocarbon surfactants, non‑fluorine surfactants and multi‑functional additives including foam stabilizers, antifreeze agents, co‑solvents and thickeners mixed with water.
Foaming Multiple Classification
Based on foaming multiple (expansion ratio), foam extinguishing agents are divided into three categories:
Low‑multiple foam: expansion ratio below 20 times
Medium‑multiple foam: expansion ratio from 20‑200 times
High‑multiple foam: expansion ratio from 200‑1000 times
Foaming multiple calculation formula
Foaming multiple = foam volume ÷ original solution volume
Qualified commercial foam extinguishing agent normally reaches 6‑8 times foaming multiple. Products with foaming multiple lower than 4 times cannot be put into practical fire‑fighting use.
