priming coat vs priming

priming coat and priming both are nouns.

Word	Noun	Adjective	Verb	Adverb
priming coat	Yes	No	No	No
priming	Yes	No	No	No

As nouns, priming coat and priming are synonyms defined as:

priming coat and priming: the first or preliminary coat of paint or size applied to a surface

Other synonyms of priming coat include flat coat, ground, primer, primer coat, undercoat.

priming coat (noun)	priming (noun)
the first or preliminary coat of paint or size applied to a surface	the act of making something ready
	any igniter that is used to initiate the burning of a propellant
	the first or preliminary coat of paint or size applied to a surface