What is high-expansion foam usually used for?

High-expansion foam is primarily utilized for flooding large enclosed areas, particularly those involving significant fire hazards, such as warehouses or aircraft hangars. This type of foam expands drastically, creating a thick blanket that can fill spaces with a high volume of foam compared to the initial liquid form. It works effectively in suppressing fires by excluding oxygen and cooling the area, which is critical in confined spaces where traditional suppression methods may be less effective.

This application is particularly suited for high-expansion foam because it can fill difficult-to-reach areas and create a protective barrier that prevents ignition of nearby combustible materials. Its capability to expand and cover vast areas makes it ideal for scenarios where broad, uniform coverage is necessary to mitigate fire risks in enclosed environments.