What is the recommended foam concentration range for Class B fires using FIREBULL F3?

The recommended foam concentration range for Class B fires using FIREBULL F3 is between 0.25% to 3%. This concentration is effective for suppressing flammable liquid fires, which are typical in Class B fire scenarios. The specific range allows for sufficient foam coverage and expansion necessary to smother the flames and prevent re-ignition.

Class B fires involve flammable liquids such as gasoline, oil, and other hydrocarbons. The ability to effectively extinguish these fires depends significantly on the foam's concentration. FIREBULL F3 is formulated to effectively adhere to and suppress the flammable surfaces at this concentration range, optimizing the foaming properties that help in forming a stable blanket over the burning material.

Using the correct concentration also ensures that the foam behaves as intended, creating the necessary thickness and lasting capabilities to protect surfaces and prevent vapor release, which can lead to explosive atmospheres. Understanding the correct use and application of foam concentrations is crucial for effective firefighting and safety.