Posted over on PM.
The poster had 4 out of 11 springs break while in evapo-rust. That's a pretty high failure rate for springs that have been sitting there stressed for maybe 30+ years, and then they quickly break in Evapo-rust. Caliper springs, almost surely left in the stressed condition when trying to de-rust them.
Sounds like pretty good proof that Evapo-rust WILL do the stress corrosion routine, and springs or other types of stressed metal are not safe in it.
http://www.practicalmachinist.com/vb...prings-342009/
The poster had 4 out of 11 springs break while in evapo-rust. That's a pretty high failure rate for springs that have been sitting there stressed for maybe 30+ years, and then they quickly break in Evapo-rust. Caliper springs, almost surely left in the stressed condition when trying to de-rust them.
Sounds like pretty good proof that Evapo-rust WILL do the stress corrosion routine, and springs or other types of stressed metal are not safe in it.
http://www.practicalmachinist.com/vb...prings-342009/
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