I am trying to make steel bolts and nuts rust so that I can determine the amount of torque needed to unscrew the nut from the bolt.
I have searched the forum and found diverse and conflicting information about the various chemicals so I thought I was post this as a new topic.
I have tried various recipes and combinations of chemicals to make bolts rust and/or corrode, I am not talking about a pretty patina on the surface but so that nuts are hard to remove from the bolts.
What are your recommendations for chemicals, ratios, durations, etc., and why.
Why do you think of common household bleach and Hydrogen Peroxide and in what ratio/mix?
How would Vinegar affect things?
What about table Salt?
Muriatic Acid?
What about covering the bolts with the solution as opposed to spraying the bolts so that the surface is exposed to the air?
I have tried so many different combinations of chemicals and various durations.
Thanks for any advice you can give so I can figure this out without all the hit and miss trials.