Hi- I have a 416 SS component in the field (a salt air environment). Apparently it got a black oxide coating was supposed to receive a supplemental corrosion preventer per MIL-C-16173, class1, grade 1. This wasn't applied and it's now showing a fair amount of corrosion. Is there any way I can, in the field, apply a corrosion preventer?

Thanks for the response. The part has a fairly simple surface. I believe it can be sufficiently cleaned, but does the black oxide layer need to be removed? Can you recommend a brush on corrosion protectant?

416ss will never be resistant to any salt water spray environment for any length of time. To prevent corrosion you will need to protect it with something. You may want to call a powder coating company to see if they can put a good powder coating on the parts (if they can be sent out). Before coating, it will be necessary to remove any rusting that has occurred. There are some coatings on the market that advertise that they can be put on right over the rust. You may want to check online for rust preventive coatings.