Sealer

n.	1.	One who seals; especially, an officer whose duty it is to seal writs or instruments, to stamp weights and measures, or the like.
	1.	A mariner or a vessel engaged in the business of capturing seals.

Noun	1.	sealer - 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) Synonyms: sealant
	2.	sealer - an official who affixes a seal to a document