With the rise of iron hulled ships in the 19th century, copper sheathing could no longer be used due to its galvanic corrosive interaction with iron.

Her bottom was dean, that much was certain; the copper sheathing had kept her clear of barnacles and weed.

A pinhole in the copper sheathing will allow moisture into the insulation, and eventual failure of the circuit.

In the meantime the copper sheathing was removed from Alarm, and several other test vessels until an effective solution to the corrosion problem could be developed.

It looked run-down anyway, with paint peeling and pigeon drop- pingi'resembling snow on the green copper sheathing of the dome.

A great part of the copper sheathing had been torn from the hull, which every day sank lower.

Galvanic corrosion was not then understood, but the phenomenon prepared the mind of Davy for his experiments on the copper sheathing of ships in later days.

Replacing that copper sheathing is the most urgent job.

She's one of the ships that joinedVilleneuvefrom Brest; that copper sheathing hasn't spent weeks in the Mediterranean and then crossed the Atlantic twice.

The copper sheathing was delivered to the dockyard wrapped in the paper, which was not always removed before the sheets were nailed to the hull.