Fluid Film (3 Aerosol Cans) Rust & Corrosion Protection; Metal Surface Penetrant & Lubricant, Marine, Automotive, Industrial, Home, 11.75 Oz

I am retired USCG aviation and we used this stuff religiously on our aircraft to protect them the corrosive salt water environments we would fly in. Because this stuff works so well, I then used it on my vehicles undercarriage where we live due to the salt thrown in the winter time. It can be a little pricey but it is worth saving yourself a headache down the road. It goes on relatively thick and does provide a wet and gooey surface so expect that but that's the whole point. It goes on gooey so it'll reach all the nooks and crannies and stay there. You may have to reapply as necessary but I would hesitate to use this where needed to prevent or slow corrosion growth.

very good product on the market! I own a Chevrolet Silverado I care about it looking good but also working. Most of the money goes to the underside and it is important to protect these parts from corrosion, especially if you live in an area where winter salt is used. This product will almost completely prevent all your worries about rusting the underside of your car, remember to always touch up any damage that has occurred before winter

this lanolin based undercoating is far superior to the other stuff... not cheap but worth the extra money

This is a must for any pickup owner. Apply it spring and fall as an undercoating. I had some light surface rust on the differential, brushed it off then sprayed on and no more rust spots. Definitely will protect from road salt.

I like this stuff, I have electric step rails on my pickup and they quit working so I bought this stuff and sprayed down all the moving parts using a whole can on each side. They started working again and I haven't had them stick ever sense. WORKS WELL!

...for protecting against rust. I live in Florida on the east coast and everything rusts almost instantly it seems. I spray the film on anything I don't use regularly like tractor implements (auger, bucket, grapple) and it protects well. If i take a wheel off my car to replace brakes, I spray the film (not on brake surfaces) to make it virtually rust proof. This stuff is not cheap, but a lot cheaper than having to replace the equipment the way I see it. I will never be without a can or two on the shelf.

I learned about this on a tractor forum I was perusing. I was having trouble getting my PTO driven implements attached to the tractor's PTO shaft, and grease wasn't helping. A few squirts of this, however, allowed the attachments to slip on easily (which is gratifying for this 80 y/o hobby farmer). I've also used it on chronically squeaking rollers on my hangar door, and now use it in most places I formerly used WD40, especially on anything potentially exposed to the weather. It's somewhat more viscous than WD but still seems to penetrate well and it lasts longer. It's good stuff.

This is the only thing I will ever use to prevent rust. I love the easy application with the aerosol cans. I’ve repurchased many times and always recommend this product