sealer vs sealant

sealer and sealant both are nouns.

Word	Noun	Adjective	Verb	Adverb
sealer	Yes	No	No	No
sealant	Yes	No	No	No

As nouns, sealer and sealant are synonyms defined as:

sealer and sealant: a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)

sealer (noun)	sealant (noun)
an official who affixes a seal to a document	a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)
a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)