After we bought our retirement properties at the coast in 2014/2015 where 60%-100% humidity is the norm, I found everything rusted - Chrome Vanadium and stainless steel tools in the pole barn and even stainless steel gun parts stored inside the house.
I had been using BreakFree CLP and motor oil for gun parts but after reading this extensive comparison of lubricants and other comparison tests where WD-40 Specialist kept coming out on top, I bought a can to try and now use it on all my tools and guns.
There are several different versions of "WD-40 Specialist" including the one made with silicone. You want the "
Long-Term Corrosion Inhibitor" version with manufacturer's product number
300035 -
https://www.homedepot.com/p/WD-40-S...-Rust-Spray-300035/300719560#product-overview
"A long-lasting rust preventative that protects metal parts, blocking rust and corrosion for up to 1 year outdoors or 2 years indoors. WD-40 Specialist® Corrosion Inhibitor is an anti-rust spray ideal for preventative maintenance and uses in extreme environments such as high humidity. It provides non-drying protection that stays where you spray it. A must have for corrosion protection.
- Protects against rust and corrosion 40x longer than competition*
- Blocks rust and corrosion for up to 2-years when used indoors and for up to 1-year when used outdoors, the formula clings to metal and protects it from air and moisture
- Recommended for preventative maintenance or for protection in corrosive environments, such as hot and highly humid or cold, and wintery atmospheres
- Included straw creates a precision stream of lubricant for controlled application and fastens to the notched cap for secure storage
- Non-drying lubricant does not run and says where you spray it, 50-state VOC compliant and NSF category A7
- *Test Lab: Petro-Lubricant Laboratories Inc. (Lafayette, NJ); ASTM B117; Test date: 05/2020"
