What is the primary purpose of gel coating?

The primary purpose of gel coating is to provide a smooth, watertight surface. Gel coatings are commonly used in various applications, including the manufacturing of composites, to enhance the appearance and durability of the surface. This coating not only improves the aesthetic qualities by offering a glossy finish but also acts as a protective layer that shields the underlying materials from moisture, UV radiation, and chemicals. By creating a watertight barrier, gel coatings help prevent water infiltration, which can lead to deterioration over time.

In contrast, while enhancing structural integrity plays a significant role in overall material performance, it is not the primary function of gel coating. Additionally, reducing weight in construction materials addresses material efficiency rather than surface properties, which gel coating does not specifically aim to achieve. Lastly, although strengthening bond strength between layers can be important in composite construction, gel coating focuses more on surface smoothness and protection rather than reinforcing adhesive connections.