Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun sealant

1 sense of sealant

Sense 1
sealant, 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))
       => sealing material -- (any substance used to seal joints or fill cracks in a porous surface)