Overall Formula Composition of Aqueous Film‑Forming Foam (AFFF) Fire Extinguishing AgentBasic Formula System of Standard Industrial‑Grade AFFF Fire Extinguishing Agent:Primary Agent: Fluorocarbon Surfactant (0.6%~3.5%)Synergist: Hydrocarbon Non‑ionic / Anionic Surfactant (12%~28%)Functional Additives: Foam Stabilizer, Cosolvent, Chelating Agent, PreservativeEnvironmental Regulator: Ethylene Glycol / Propylene Glycol‑based AntifreezeSolvent Medium: Refined Deionized Water

IV. Core Advantages of the Formula System (Detailed Elaboration)(I) Synergistic Combination of Fluorocarbon‑Hydrocarbon with Remarkable Cost Reduction and Efficiency ImprovementPerformance ComplementarityFluorocarbon provides ultra‑low surface tension, oil‑surface film formation, temperature resistance and burn resistance; hydrocarbon surfactants deliver high foaming capacity, foam stabilization and improved foam fluidity. Their combination achieves a synergistic effect of 1+1＞2.

Cost OptimizationHigh‑purity fluorocarbon raw materials are costly, leading to extremely high production costs when used alone. The compound system can significantly reduce the dosage of fluorocarbon, effectively cutting production costs of the agent while fully meeting fire‑extinguishing performance standards, making it suitable for large‑scale industrial mass production.

Activity SuperpositionThe surface activity of the compound system far exceeds that of single raw materials, with three core indicators — foaming expansion ratio, drainage time and spreading rate — all superior to single‑component formulas.

(II) Superior Comprehensive Fire‑Extinguishing Performance Over Traditional Foam FormulasFast Fire Extinguishing SpeedUnder the same fire‑extinguishing grade, the fire control and suppression speed of AFFF is 3 to 5 times that of protein foam. It can rapidly suppress large‑area flowing fires, ideal for rapid fire‑extinguishing scenarios such as airports and large oil depots.

Excellent Burn ResistanceThe fluorocarbon components in the formula extend the foam’s burn‑resistant duration. In fire scenes with intense thermal radiation, the foam lasts longer and provides stronger continuous protection.

Strong Mixing CompatibilityIt is standard‑compatible with the commonly used 3% and 6% foam mixing ratios for fire protection. It can be directly applied to all types of fire‑fighting equipment including fixed foam fire‑extinguishing systems, mobile fire monitors, foam nozzles and fire engines without equipment modification.

(III) Advantages of the Environment‑Adaptable Formula for All ClimatesWide Temperature Range ApplicationCombined with antifreeze additives and the inherent low‑temperature high‑activity property of fluorocarbons, the finished fire‑extinguishing agent remains unfrozen at -25℃ and stable without deterioration when stored at 50℃. It can be normally used nationwide in China, including alpine regions and open‑air storage tank areas.

Full Water Quality CompatibilityWith chelating agents added and leveraging fluorocarbons’ salt‑resistant and hard‑water‑resistant properties, it can be directly mixed with tap water, groundwater and seawater, freeing field emergency rescue from water source constraints.

(IV) Advantages of Upgraded Eco‑Friendly FormulasElimination of Highly Hazardous Long‑Chain FluorocarbonsTraditional long‑chain fluorocarbons such as PFOS and PFOA feature bioaccumulation, non‑biodegradability and high ecological toxicity, and have been banned in the fire protection industry of many countries.

Popularization of Short‑Chain Eco‑Friendly FluorocarbonsCurrent mainstream formulas adopt C5 and C6 short‑chain fluorocarbon surfactants with good biodegradability, low human toxicity and minimal environmental residue, fully complying with China’s new fire‑protection environmental regulations and work safety standards.

Low‑Pollution Usage CharacteristicsAgent residues after fire suppression are easy to clean, causing no severe pollution to site soil and water bodies, and facilitating post‑disaster site clearance.

(V) Practical Advantages of Formulas in Storage, Operation and MaintenanceHomogeneous and Stable SystemThe scientifically compounded formula system boasts excellent compatibility. It shows no delamination, turbidity or precipitation of active substances under long‑term sealed storage, with a conventional shelf life of 8 to 10 years.

Broad Compounding CompatibilityIt can be freely mixed and blended with clean water, clean water fire‑extinguishing agents and some flame retardant additives. Agent concentration can be flexibly adjusted according to fire conditions, offering strong emergency practicality.

Low CorrosivenessThe neutral and mild formula system is highly non‑corrosive to fire‑fighting pipelines, tanks and metal fire‑extinguishing equipment, reducing equipment rust damage during long‑term use and lowering maintenance costs of fire‑fighting equipment.

(VI) High Flexibility of Scenario‑Customized FormulasBased on the diversity of fluorocarbon surfactants, multiple specialized formulas can be customized:For oil storage tanks: high film‑forming and high burn‑resistant formulas;For airports: lightweight formulas for rapid flow and ultra‑fast fire suppression;For chemical industrial parks: alcohol‑ and solvent‑resistant specialized formulas;For vehicle‑mounted fire fighting: low‑temperature antifreeze concentrated formulas.