How does a soda can manufacturer print the logo and info on an aluminum can? I thought maybe they were color anodized at first because they are so durable, but after closer inspection and playing around, I think it is some kind of super durable ink spray or silk screen process.
Acetone doesn't touch it and even a wire wheel takes a slow or deliberate pass to remove it all.
Anyone know for sure?
Regards, Joe Agro, Jr.V8013