Compounds with metal cations (positively charged ... in the presence of chloride ions from hydrochloric acid effectively resets the etching solution, restoring the cupric chloride and making ...

It’s not like etching with hydrochloric acid and peroxide is anything new, really; it was just something new to him. But is it even possible these days to post something and not find out just ...

In this video I share 2 simple ways how to metal etch using electricity. I use these same techniques on every metal restoration / modification project. This is so easily done and can substitute ...