A good Anti rust spray?

[harrisonm]

I am helping a friend restore his 56 Studebaker Power Hawk. The body shell is on a rotisserie now and completely down to bare metal using a Dustless Blaster. We used this Bill Hirsh product. It is very reasonably priced, and sprays on easily with a 'Windex' type spray bottle. It is working quite well.
Non-Flammable Rust Inhibitor | Rust Inhibitor for Cars-hirschauto.com

 

[skidmark]

With clean blasted metal best thing to use is epoxy paint. You don’t have to spray, you can brush or roller. If it’s a body panel any brush or roller marks will be block sanded out. This gives good protection. I removed the OSPHO suggestion because some were having adhesion problems. Metal shop I work at used with no issues, but I don’t remember which epoxy primer the painter used.
Best to paint clean metal with epoxy.

 

[Louie70Dart]

Are you looking for something to protect from flash rust before paint or something permanent? I use Ospho on bare metal after blasting unless im going to paint it right away.

Used Ospho also. Put on lint free wipe and poured some on it and wiped. Then used a green scothbrite before paint. Painted right over it. Years later no rust.

 

[66jim]

FWIW, From gun care article;

“With this evaluation behind me, I an unlikley to condsider the WD 40 specialist as a gun care product because it wasnt marketed as a cleaner (not meant to be a cleaner so I cant knock for that) and it didnt rank terribly high for lubrication but I will be using it for many other outdoor applications and tools where I want to delay corrosion. The column of my drill press, the top of my table saw, my lathe, saw blades, hand tools and lots of other tools will benefit from its ability to protect from rust.

Frog lube impressed in both lubrication and corrosion inhibition but I wonder how good a cleaner it is? The mfgr website touts it as a cleaner but I am uncertain. (only speculation on my part)

Hornady’s One Shot strikes me as more of a cleaner than Frog Lube and WD 40 specialist (speculation on my part) and it certainly performed well as a lube and corrosion inhibitor.”

Comprehensive Corrosion Test: 46 Products Compared

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[Mattax]

What do you intend to do with the parts and how long will it be?

I'm interested in preventing rust on media blasted cast iron when it is not going to be painted. Like when I build a third member, on the inside of the case not the outside which I paint. When it is not going to be used or put in service for a month or two.

Products like cosmoline is what they use for tool bits etc.
Somewhat similar are the thicker waxy products such as Waxoyl, and LPS 3 (available in spray cans).
I've just started using Boeshield T9 where I want nearly invisible slick corrosion preventive such as bicycle chain and table and band saw, lathe ways, etc. Seems pretty good.

 

[harrisonm]

With clean blasted metal best thing to use is epoxy paint. You don’t have to spray, you can brush or roller. If it’s a body panel any brush or roller marks will be block sanded out. This gives good protection. I removed the OSPHO suggestion because some were having adhesion problems. Metal shop I work at used with no issues, but I don’t remember which epoxy primer the painter used.
Best to paint clean metal with epoxy.

I TOTALLY agree. However, if you are not ready to spray the primer pretty much right after the paint is removed to bare metal, something will have to stop flash, surface rust until you can spray the primer. You may have some panels to repair / paint. Who knows, but I do vote for epoxy right away if possible. Plus, body filler can be applied right on the epoxy.

 

[gzig5]

LPS3. Use a product designed for the job. It is like a spray cosmoline.

 

[SGBARRACUDA]

Well I thought I would do my own unofficial testing.
I started with two local products. 1- WD-40 Specialist corrosion inhibitor. So far on plain steel it seems to be holding up and preventing rust. It goes on kinda thick and maintains a wet coat on the applied item. It hasn't been long in time put I'm happy so far.
2- is Fluid Film from O Riley's. It goes on thick also and clings really well, it is less expensive than the WD-40 but seems to work the same. I've used these both on steel and media blasted cast iron. Long term results will tell if they are good.

 

[SGBARRACUDA]

I found out today that the WD-40 specialist really clings well. I sprayed so blasted steel parts today and got the spray on my hands. GoJo orange wouldn't begin to wash it off. Had to wash my hands first in my parts washer.