Posted by daveinnvt [155.178.180.11] on Thursday, January 01, 2015 at 14:23:36 :
In Reply to: Re: Phosphoric Acid Question? posted by Paul(in NY) [12.64.126.138] on Wednesday, December 31, 2014 at 22:39:45 :
It will leave behind a barrier to prevent rust. I've had positive results also.