What characteristic do coatings provide on the nail plate?

Coatings applied to the nail plate serve several important functions, one of which is to create a hardened film on the surface. This hardened layer is essential because it helps protect the nail from external damage, such as chipping, breaking, and environmental wear. By forming a protective barrier, coatings enhance the durability of the nail, allowing for longer-lasting manicures and a polished appearance.

The formation of this film is particularly vital in both cosmetic and health aspects, as it also aids in preventing moisture loss and protects against harmful substances that could impair the condition of the natural nail. Thus, the primary characteristic being provided by these coatings is indeed that they create a hardened film that contributes to the overall strength and longevity of the nail.