Finish coat is a common construction term used to describe the final layer or coating applied to a building surface or structure. Depending on the type of project, various synonyms may be used to describe the finish coat. The most common synonyms for finish coat include the top coat, final coat, or top finishing layer. Other synonyms that may be used include the final finishing coat, top layer, final layer, or the top finish. The synonyms used may vary depending on the context of the project or the specific industry, but all refer to the final layer applied to a surface or structure.