I wonder if anybody has found a product that acts as a solvent to remove old Copper Coat from heads and blocks.
I just use a scraper. For the head, I use emery paper with a nice flat steel block behind it. Not as easy with the block however...
This stuff is what I use. You have to be careful with the masking, though. It will eat pretty much anything down to bare metal. Also, expect to only use it once. Every can I've bought corrodes its own valve down in the can after the first use. But it will take off Copper Coat completely clean.
I use BrakeKleen for near everything !
I just use lacquer thinner, it comes off easily.
I have used fingernail polish remover liberal amounts on a shop towel and use gloves. I really don't understand how women can use that stuff on their hands?????
Fingernail polish remover is mostly acetone, which is much cheaper to buy in a can at the paint/hardware store--and your spouse isn't after you for taking her last bottle of remover!!