AR-AFFF stands for Aqueous Film-Forming Foam, specifically designed for fighting flammable liquid fires. It contains additives that enhance its effectiveness against polar solvents, making it suitable for various industrial applications. This foam creates a barrier that smothers flames and prevents re-ignition. The "AR" in AR-AFFF indicates its "Alcohol-Resistant" properties, which allow it to work effectively on fires involving alcohols and other polar solvents. This type of foam is commonly used in firefighting operations at airports, chemical plants, and oil refineries, where such hazardous materials are present.