Definition of sealant Sealant

/siˈlʌnt/ - [seelunt] - seal•ant

We found 4 definitions of sealant from 3 different sources.

What does sealant mean?

Noun Plural: sealants
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
		sealing material any substance used to seal joints or fill cracks in a porous surface

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sealant (Noun)
Any material used to seal a surface so as to prevent passage of a fluid.
sealant (Noun)
Construction A mixture of polymers, fillers, and pigments used to fill and seal joints where moderate movement is expected.