Cleaning Zinc running board trim

[wrndln]

I thought runningboard trim was solid zinc, not a zinc coating. I think the whitish material that forms on the trim and looks bad was an oxide. I thought the chemicals just removed the oxide coating and not much or any underlying zinc.
Rusty Nelson

[Mike V. Florida]

Originally Posted by wrndln

I thought runningboard trim was solid zinc, not a zinc coating. I think the whitish material that forms on the trim and looks bad was an oxide. I thought the chemicals just removed the oxide coating and not much or any underlying zinc.
Rusty Nelson

Your right as is 59mgaguy. Zinc with create this coating to protect it's self, sort of line the green coating you get on copper.

Your cleaning removed the coating like polishing will remove the green coating of copper.