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Related to sealing coat: prime coat, tack coat


an agent that protects against access from the outside or leakage from the inside; called also sealer.
dental sealant a thin plastic coating put into the pits and fissures of teeth to act as a physical barrier to decay.


n a substance used to fill the space around silver or gutta-percha points in a pulp canal. Most contain some combination of zinc, barium, and bismuth salts and eugenol, Canadian balsam, and eucalyptol.


in meat hygiene terms, see shomer.