This video demonstration highlights how quickly the intumescent product reacts when exposed to direct heat and flame.

As temperatures rise, the material rapidly expands into the gap, helping to restrict the passage of flame, heat, and smoke through the opening. The footage provides a clear visual example of the reactive properties of intumescent materials and their role within passive fire protection systems.

The video also demonstrates how even relatively small gaps can provide a route for the spread of fire and smoke if left untreated. Once activated, the intumescent material increases significantly in volume to seal the void, illustrating the principle of maintaining compartmentation within a building. While this is a visual demonstration rather than a certified fire resistance test, it effectively shows the intended behaviour of the product under heat exposure conditions.

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