Coating 5 April 2021 A coating in nail services terms is any product that is applied to the nail plate and leaves a layer of product. It can be traditional nail polish, a strengthening product, a UV gel product, an L&P product. Related Articles: The Dangers of Using Superglue for Fake NailsNatural vs. Nourished: Is Bare Better for Your Nails?The Truth About Acetone: Essential, Efficient, and Often MisunderstoodWhy It’s Smart Not to Apply Gel Polish on Damaged NailsWhy are UV Gels so thick?