Skim coat is a technique that is used in construction and renovation work of walls and ceilings. It is applied as a thin layer of plaster or drywall compound to create a smooth and even surface for finishing. Synonyms for skim coat include skim plaster, skim rendering, surface coating, finishing coat, and top coat. These terms refer to the final layer of plaster or drywall compound that is used to even out imperfections or imperfections in the wall or ceiling surface. Skim coat is a necessary step in creating a flawless finish, and understanding its synonyms can help in effectively communicating with contractors and construction professionals.