Compared to wet foam, dry foam provides:

Dry foam is typically formulated to create a lighter, more voluminous foam that can persist longer when applied. This characteristic is crucial in fire suppression as it allows for a sustained barrier against ignition sources, maintaining effectiveness over a more extended period. The longer-lasting nature of dry foam can be attributed to its lower water content, which diminishes evaporation rates and enhances its ability to cover and shield burning surfaces.

In comparison, wet foam, which has a higher water content, tends to drain off more quickly, reducing its effectiveness in suppressing fire over time. Therefore, the quality that sets dry foam apart in fire suppression scenarios is its longevity, making it suitable for applications where a prolonged fire fighting effort is needed. This aspect of dry foam can be particularly advantageous in situations where resources may be limited or where the fire requires ongoing monitoring and suppression efforts.