During the application of coal tar enamel, what is used in the wrapping process?

In the wrapping process during the application of coal tar enamel, glass fiber mat is utilized primarily for its reinforcing properties. The glass fiber mat serves to enhance the mechanical strength and impact resistance of the coating. It acts as a structural support, allowing the coal tar enamel to adhere better and protect the surface underneath from external factors like moisture and abrasion.

The choice of glass fiber mat is important because it provides a robust layer that withstands environmental stresses while maintaining flexibility to accommodate potential movement in the substrate. This versatility is essential in applications where coatings need to endure harsh conditions or where there is a risk of cracking.

On the other hand, materials like plastic sheeting, steel fabric, and polyurethane foam do not provide the same level of reinforcement and support necessary for maximizing the efficacy of coal tar enamel. Thus, while they may serve different purposes in various applications, glass fiber mat stands out as the most suitable option in this context.