Definitions for "Undercoat"
A coat worn under another; a light coat, as distinguished from an overcoat, or a greatcoat.
Matt finish paint (usually oil paint) used before the finish coat.
All of the products used to prepare the surface to receive color coats ( primers, surfaces, putties, sealers, etc.).
Keywords:  fur, wooly, wolves, coarser, guard
A growth of short hair or fur partially concealed by a longer growth; as, a dog's undercoat.
thick soft fur lying beneath the longer and coarser guard hair
A true undercoat is the wooly or down hairs, under the longer guard hairs.
Material used to protect the underbody sections of a vehicle.
Hides the previous colour, fills minor imperfections, gives a uniform surface and sands easily.