It works when you are trying to destroy your health, too! https://www.medicinenet.com/mercury_poisoning/article.htm#mercury_poisoning_definition_and_factsI'm surprised nobody mentioned mercury.
What? It works!
I'm surprised that nobody mentioned Kroil....
...The Copper Chore Boy works great. I use it with Kroil instead of solvent to get the longest life from the brush.
I thought I had read all of the posts thoroughly. I was wrong! I use the Kroil as a penetrant to lift up the stubborn junk!Post #6...