Alcohol resistant aqueous film forming foam (AR-AFFF) concentrate is a fire extinguishing agent that is specifically designed for use in controlling flammable liquid fires that contain alcohol or other polar solvents. Compared to conventional AFFF concentrates, AR-AFFF concentrates have the added benefit of being able to form a stable foam blanket on alcohol-based fuels, which previously would not have been covered by standard foam extinguishers.
AR-AFFF concentrates are widely used in industries where the risk of flammable liquid fires is high, including in petrochemical plants, refinery facilities, shipping terminals, and aviation environments. Their effectiveness in controlling fires that involve alcohols and solvents have made them an indispensable tool in containing potentially catastrophic incidents.
There are several benefits of using AR-AFFF concentrates. Firstly, they offer excellent extinguishing performance on low or high viscosity fuels, providing rapid knockdown and extinguishment of fires. Secondly, they have unique fire endurance qualities, allowing for extended burn-back time, reducing the likelihood of re-ignition. Thirdly, AR-AFFF concentrates have a long operational life span, providing effective fire protection over an extended period of time.
The formulation of AR-AFFF concentrate involves a blend of fluorosurfactants, hydrocarbon surfactants, and a special blend of polymers. Together, these ingredients create a concentrate that is hydrocarbon-soluble and alcohol-resistant, allowing the foam to flow over the fuel surface and control the fire. The concentrate is mixed with water, typically at a ratio of 3-6%, depending on the level of risk being addressed.
When discharged, AR-AFFF concentrates form a thin layer of aqueous film on the surface of the fuel, separating the fuel from the oxygen in the air and preventing the release of flammable vapors. The foam also cools the fuel, reducing its temperature and preventing further ignition.
The effectiveness of AR-AFFF concentrates has been extensively tested in numerous fire scenarios, with excellent results. In addition to extinguishing fires, AR-AFFF has been found to have minimal environmental impact, as it is biodegradable and easily cleaned up using water.
In conclusion, AR-AFFF concentrates represent a significant advancement in fire protection technology, providing effective and efficient control of flammable liquid fires that involve alcohols and solvents. Their proven effectiveness in the field makes them an essential component of safety protocols in industries where the risk of such fires is high. By using AR-AFFF concentrates, businesses can minimize the potential for catastrophic incidents, protect their assets, and prevent loss of life.
