It's only a question of resealing the envelope and mailing it.

After the tank is resealed on the inside with silicone (to give double protection), it is left for a day to dry.

Time comes when wine jars need resealing, else the wine spills.

It was a small, square parcel, done up in brown paper and sealed with black wax; it had been opened, the original wrapper put on again, and the seals resealed.

Nogam had not bothered to worry it open so carefully that it might be resealed without inviting comment; though that need not have been a difficult matter, thanks to the dampness of the night air.