waterproofing vs coating

waterproofing and coating both are nouns.

Word	Noun	Adjective	Verb	Adverb
waterproofing	Yes	No	No	No
coating	Yes	No	No	No

As nouns, coating is a hypernym of waterproofing; that is, coating is a word with a broader meaning than waterproofing:

Other hypernyms of waterproofing include coat.

waterproofing (noun)	coating (noun)
the act of treating something to make it repel water	the work of applying something
a coating capable of making a surface waterproof	a thin layer covering something
	a heavy fabric suitable for coats
	a decorative texture or appearance of a surface (or the substance that gives it that appearance)