Not a dumb question ,I've used etch primer before worked perfect on galv sheets but didn't seem to key to zintrc sheets aswelldumb question....?
what about a self etch primer....???????
At the bottom of the page here it says
Galvafroid should not be applied over existing coatings.
Does that mean over existing galv??
https://www.promain.co.uk/fosroc-galvafroid-anti-corrosion-paint.html
"froid" = cold ( French )it's often called cold galvanising
"froid" = cold ( French )