What type of foam is used during product control for polar solvents?

The use of alcohol-resistant concentrates for product control during incidents involving polar solvents is essential due to the unique properties of polar solvents and their tendency to mix with water. Polar solvents, such as alcohols, are water-miscible, meaning they can dissolve in water, rendering traditional foams ineffective. Regular protein foam and Aqueous Film-Forming Foam (AFFF) do not provide the necessary resistance to polar solvents and can actually exacerbate the situation by allowing the flammable liquid to spread.

Alcohol-resistant concentrates are specifically formulated to create a protective film on the surface of polar solvents, allowing them to suppress vapors and prevent ignition. This capability is crucial in mitigating hazards associated with flammable liquid spills. High expansion foam, while useful in certain situations, is not specifically designed to combat the properties of polar solvents in the same effective manner as alcohol-resistant concentrates. Therefore, choosing alcohol-resistant foam is critical for ensuring safety and effective control during incidents involving polar solvents.