SEASONAL RUST PROOFING using WD-40 only

You can spray right over rust, it with penetrate the scale and sets up a barrier. It will eventually turn black and it will be like a skin. When I first bought my rig, I did have some rust on my rearend and some other spots, but not too bad. I was halting the rust with the WD-40 until I could paint it. At this point I'm not even want to take the time to paint it cause everything is black and looks good with a barrier skin thats stopping all rust. I never would have thought it works this good, but it does. Others that do it that I know swear by it. Just avoid washing undercarriage with high pressure water jets as you would for Fluid Film or other coatings. The thing I like about it is the ease of application, you can spray it on everything, it makes any existing rust turn black in time, and it doesn't wash off, and its cheap. Very simple but effective, just follow my instructions mentioned at beginning of thread and you'll be good.


Awesome! Cheers brother
 
Yeah nice and cheap on the WD. I just got some cheap sprayer at Lowes. I run it without a spray tip, but maybe ok with a tip too, but sprays fine the way I do it. Nothing is rusting on my rig.

Great write-up [MENTION=125309]dogtail[/MENTION]

I'm going to give this a try with my 2000 Tundra.

A question for you on sprayer: I have an old crumby paint sprayer I was going to throw out, so this would be a perfect use for it. But I also have a couple garden sprayers and was thinking that might work better because I could get the wand into places I couldn't with the paint sprayer.

Your thought?
 
Great write-up [MENTION=125309]dogtail[/MENTION]

I'm going to give this a try with my 2000 Tundra.

A question for you on sprayer: I have an old crumby paint sprayer I was going to throw out, so this would be a perfect use for it. But I also have a couple garden sprayers and was thinking that might work better because I could get the wand into places I couldn't with the paint sprayer.

Your thought?
Yeah whatever gives you a nice spray. You can even use those garden pesticide sprayers. Main thing is just coat everything good and keep it that way year round and you'll be amazed at the results.
 
Yeah whatever gives you a nice spray. You can even use those garden pesticide sprayers. Main thing is just coat everything good and keep it that way year round and you'll be amazed at the results.

Pesticide sprayer is what I was talking about. I think that will be my plan then.

Thanks!
 
WD-40 is not a good rust prevention. It is penetrating oil with a solvent.

I would have agreed with you before I saw this thread. Look at the pics of [MENTION=125309]dogtail[/MENTION]'s rig... and that's a New England vehicle.

Hard to argue with the results.
 
I would have agreed with you before I saw this thread. Look at the pics of [MENTION=125309]dogtail[/MENTION]'s rig... and that's a New England vehicle.

Hard to argue with the results.
The downside of it would be the damage it causes to rubber bushings (suspension, body, etc.). That's why guys go for products like Fluid Film (lanolin based instead of petroleum based).

-Charlie
 
WD-40 is not a good rust prevention. It is penetrating oil with a solvent.

I would have agreed with you before I saw this thread. Look at the pics of [MENTION=125309]dogtail[/MENTION]'s rig... and that's a New England vehicle.

Hard to argue with the results.

The downside of it would be the damage it causes to rubber bushings (suspension, body, etc.). That's why guys go for products like Fluid Film (lanolin based instead of petroleum based).

-Charlie
4v power - I know what I'm talking about, cause I'm doing it and the results show. Come take a look if you want, you're only one state over from me.
tvpierce - absolutely, 366K on the chassis, belly is black and solid.
phattyduck - it doesn't cause damage to any of the bushings, body components rubber or anything, not sure where you heard that myth. I heard that Fluid Film swells rubber and bushings, but I cannot confirm it myself cause I don't use it.
 
A comprehensive corrosion test where WD-40 Specialist did very well. It is gun related but would apply here as well. Fluid Film also included.

Comprehensive Corrosion Test: 46 Products Compared | Day At The Range

That's a really interesting read. He was very thorough and methodical.
Yeah a lot of validity on the bench test for simple testing. I will say that the road test is real world testing though. That makes things a lot different. These are also brand new pieces of bare steel, just sitting to the elements. When you have seasoned steel, painted, maybe a little scale, salt, chloride, repeat applications, moving vehicle, dust particles with static, water splash thru puddles, etc....its a whole different environment.
My prevention method (along with others doing the same thing) has worked very effectively. Actually I'm amazed how well it works, yet so simple.
 
Wonder how much of a difference there is regarding rust prevention between the standard WD-40 and the WD-40 Specialist as the Specialist appears very costly. Not sure it’s even sold in gallon size as the regular one certainly is.
 
Wonder how much of a difference there is regarding rust prevention between the standard WD-40 and the WD-40 Specialist as the Specialist appears very costly. Not sure it’s even sold in gallon size as the regular one certainly is.
Regular WD-40 works great plus its cheap, no need to use WD-40 Specialist. Also the Specialist melts plastic according to that bench test.
If regular WD-40 is applied and maintained as my write up in this thread, you should have great results.
 
Pesticide sprayer is what I was talking about. I think that will be my plan then.

Thanks!

Update:

I undercoated my 2000 Tundra last weekend using WD-40.

I used a combination of the garden sprayer, a spray bottle, and an aerosol can with a long extension tube.
The garden/pesticide sprayer worked really well for most areas. The wand allowed me to easily get hard-to-reach areas (above the transmission, inside the frame, etc.). But it sprays more of a "stream" than a wide spray pattern. So when I had unobstructed access to a large area, I'd use the spray bottle to get better coverage.
I used the aerosol can to get inside the rockers, doors, and other body panels.
 
Regular WD-40 works great plus its cheap, no need to use WD-40 Specialist. Also the Specialist melts plastic according to that bench test.

If regular WD-40 is applied and maintained as my write up in this thread, you should have great results.



The article states the opposite. Specialist showed no damage to styrofoam in test. Later, author mentions using it on a variety of plastic surfaces and showing no signs of damage after 24 hours.


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The only plastics that are mentioned not safe for WD-40 would be the following:


"Polycarbonate and clear polystyrene plastic are among the few surfaces on which to avoid using a petroleum-based product like WD-40."

Sent from my SM-J337V using Tapatalk
 
I like amsoil metal protector HD. not sure i like the idea of coating my entire underbody with a flammable material


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