casein vs casein paint

casein and casein paint both are nouns.

Word	Noun	Adjective	Verb	Adverb
casein	Yes	No	No	No
casein paint	Yes	No	No	No

As nouns, casein and casein paint are synonyms defined as:

casein and casein paint: a water-base paint made with a protein precipitated from milk

casein (noun)	casein paint (noun)
a water-base paint made with a protein precipitated from milk	a water-base paint made with a protein precipitated from milk
a milk protein used in making e.g. plastics and adhesives