0 a final layer of paint put onto a surface over another layer, or the type of paint used to do this --
Very much an economy model, in standard form it came finished in primer with topcoat as an optional extra.
The topcoat is 2 to 3 inches (5 to 8 cm) long and it has a woolly undercoat.
The topcoat is close and tight and undercoat is soft and dense.
Doing this allows maximum adhesion/bonding of the topcoat to the primer.
A guard's coat was also once popular, and a lighter topcoat can be worn in summer.
At the same time, defects from topcoat use should be avoided.
This topcoat would serve as a barrier for chemical diffusion between the liquid medium and the photoresist.
Knee-length topcoats and calf-length overcoats were worn in winter.
