wash metal

wash metal

[′wäsh ‚med·əl]
(metallurgy)
Molten metal used to clean out a furnace, ladle, or other container.
References in periodicals archive ?
It's especially important to wash metal poles exposed to salt water, or else they'll corrode.
You can wash metal with hot soapy water and it's great if the weather gets particularly wet because you can easily dry them off.