Copper Bathroom Sinks. The uniformity of the copper metal thickness in a bathroom sink is high importance, because sometimes the sinks are thin in places and thick in other places. The sink should be without any form of protective layers so that the germ-repelling properties of the metal copper are not destroyed and remained intact. So unless you are prepared to those things in mind when using and strict control over the raw instincts and wanted to keep, you have to kind of sink.

