Efficient and environmentally friendly synthetic foam fire extinguishing agent 6%, 3% (S) is a new generation of green products can be used with water in proportion 6:94 or 3:97 in the mix of products in a variety of low expansion foam born bubble devices. Compared with ordinary protein foam extinguishing agent, the product has a good fire performance, storage and use no odor, no pollution, no corrosion of equipment, no residue, storage stability. Product obsolescence handling convenience, is ideal for extinguishing the fire industry. (1) the characteristics of the fire extinguishing foam principle and the principle of mainly large amounts of foam injected into the fire zone after diluting the oxygen content of the fire zone, closed combustion surface to isolate and suffocate the fire and air. Due to the effect of surface active agent, so that the product has a low surface tension, low critical shear stress, strong oleophobic capacity advantages. And can be used in conjunction with dry powder, liquid spray can be used under way fighting tank fire. (2) Applications are widely used to fight a variety of water-insoluble, combustible, flammable liquids, such as a variety of petroleum products, oil and other fires, for oil, oil depots, refineries, petrochemical, shipping, airports and other oils class fires and general fire solids. (3) The main technical indicators freezing point ℃ ≤ -.. 7 5 ℃ 25% dialysate time, MIN ≥2 5 anti-freeze, thaw resistance no visible stratification and heterogeneous extinguishing time, MIN ≤3 0 precipitate%. ... (v / v) ≥5 0 25% anti-burning time, MIN ≥10 PH value of 0 to 9 5 6 Storage temperature ℃ - 5 ~ + 45