Tnanko and others.
This copper spray, does it contain actual copper particles ? It be ok to use on cast iron block, but not sure if it I'd be using on aluminum?
Galvanic action of dissimilar metals. I know from my solar collector installations, copper is on the + side and aluminum is on the - side. Copper & aluminum will corrode each other very quickly. Even in electrical wiring special adapters are required when making connections between copper & aluminum wire.
Actually it's a current flow or electron flow that is created and can't remember if it's negative to positive or reversed????? Metal is transferred.
Paul
