Been in machine and building maintenance for 45 years and used it since it came out. Never had a problem. Maybe I'm just lucky but it works for me.
Iv had my Rogers n spencer 15 years its still in perfect working order, used it this morning and it shoots as good as the day i got it. Both my Ruger old
armies also.
Now silicon on a break barrel as a lube, no it would probably gum things up but as a post wash spray i have no concerns about using it.