What occurs when moisture causes bubbles to form in fiber-reinforced plastic?

When moisture infiltrates fiber-reinforced plastic, it can become trapped beneath the surface. As this moisture heats up or reacts with the materials within the composite, it causes the formation of bubbles. This phenomenon is referred to as blistering. Blistering typically leads to visible raised areas on the surface of the material, which can compromise both its aesthetic appearance and structural integrity.

Understanding this process is crucial for inspecting and maintaining fiber-reinforced plastic structures, as blistering can indicate underlying moisture issues that may lead to further degradation of the material over time. Recognizing and addressing such signs is essential for ensuring the longevity and safety of structures utilizing this type of material.