Tinware, Japanned, & Galvanised Ware
Tinware, japanned, and galvanized wares are made of sheet iron
or steel coated with another metal. Tinware ware is coated with
tin; japanned is tinware painted with a special varnish; galvanized
ware is coated with zinc.
Whenever iron or steel is coated with another metal, there is a
surface union between the metals which is very different and very
much stronger than the adherence of enamel. The metal coat will
not scale off, though it may be scratched off. Tinware and galvanized
ware are very durable.