Posted by Jim Chance on January 06, 1998 at 11:10:43:
In Reply to: Re: De-Rusting And Painting posted by Gordon McMillan on December 24, 1997 at 09:48:16:
There are reports of bolt failure after derusting with phosphoric acid due to hydrogen embrittlement. It only seems to be a problem on highly stressed bolts, particularly those get impact loads.