Cosmolene Remover?

[RustyHammer]

Another vote for BOILING WATER ... it melts the cosmo, and, because the metal gets so hot from the water, it evaporates all the water off in a few seconds. Wipe it down with some CLP, bingo ...

 

[SecuritySixShooter]

Time and a lot of patience.

 

[JamesM]

There must be different types of cosmiline out there becuase I never had any luck with the boiling water (other than making a nice mess and taking a long time)