What is the Best Rust Preventative? - 6 Month Update

Half a year has already passed us by and it's time to look at our rust preventative samples yet again. We're starting to get a pretty clear picture of how these different sprays hold up to the elements. Here are affiliate links to each of the products being tested:

Still reading the description? Leave a comment about the worst rust you've ever seen on a vehicle. For me, I had a 1990 Ford Ranger that lost significant amount of mass every time I hit a bump. That's nothing compared to the guy I know whose Chevy S10 frame rusted in half. Couldn't happen to a nicer guy.

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[dancollins]

I like the fact you're moving onto recommendations. You are not 'just' some dude on the internet, you've run a decent test, and consistently sought feedback as to the method. Don't be afraid to name winners, that's what viewers are seeking clarity on

[brucewilliams]

Thank you for doing this work. It saves the rest of us from the trial and error method of selecting rust preventative.

[SALTrips]

Thank you for the valuable insight, Mr. Stuart

[FWSwart]

Very informative like the previous updates. +1 for a September Update

[angelramos-]

Very good info, Stuart.Thank you and happy summer.

[douglasthompson]

I am amazed by your results with the WD-40. When it first came out in the early sixties it was quite a good product but in a few years they changed its formula (ala 'New Coke" You could smell the difference big time! The new formula was heavy with the diesel smell.) to its detriment. I am seventy three years old so I have quite a history with WD and I keep it around for its convenience as a cutting fluid with aluminum and that is the only place I have found it to work. I still vividly remember storing my tools during a move and spraying them with it. Every one especially those with cast tables rusted almost immediately despite being in a closed storage unit (though unheated). Then there was the time in the fall I didn't have anything else handy on my 34 foot boat with all the glass fuse panels (12v) inside the cabin so I sprayed WD on them. 95% failed when we did the spring outfitting. 95%!! I had to clean three dozen glass fuses with a pencil eraser on the contact points. A long and frustrating job but they all resumed working. After spraying them with CRC they performed for several years with no problems. Well I could go on and on (I have a flat learning curve, I guess but the damn stuff is cheap and the spray can always seems to be lurking when I go to lube something!!! Happily I can report I did learn and for the past two or three decades I haven't been disappointed with its performance because it has stayed as a cutting fluid and or a cleaner, never as a preservative or rust preventative. So firmly did it implant in my grey cells that I have no desire to even try their "new formula". I have enjoyed your test video.

[TangentJim]

Stuart - I'm impressed. Great video ! --- Jim

[edpopelas]

I’ve long been a fan of Cosmoline especially for deep storage items. Aside from machining aluminum, I’ve given up on WD-40. It’s become the perfume that just lets everyone know you’ve been doing some work in the garage. Impressed with the LP3, may have to pick that one up. If I recall correctly I believe Robin is a fan and used it inside a spindle for corrosion protection. That’s an endorsement all in itself.

[luisgaray]

Really informative Stuart. I would be interested in a September update. I'm really surprised on how Boeshield really failed. Thanks for doing this experiment!

[LDSTurkey]

Thanks for your video. Just in time as I am looking to coat my new utility trailer rims.

[tallnrough]

I like the lps3, it’s very resilient to coming off

[dustcommander]

I've made quite a few mistakes in my life, quite a few. But I don't feel like as much a loser after realizing I chose LPS3 over 30 years ago to protect my little teeny lathe (also a mistake - should have gotten a larger one). I had to have seen it used at work. No way I would have known about it otherwise. I admire folks who stick with the commitment to test something for months and then take time to make a good video about it!

[qcnck]

I am really surprised about the Boeshield. Good work, Stuart. And +1 on the Sept update.

[prius]

Please add a September update. Great, exceptionally useful series. thanks

[FantmVirus]

Fluidfilm is liquefied paraffin wax which is why it stays stick - works pretty well and you are 100% right it collects dirt but all surface only

[Alcorelli]

Thank you for getting to the point clearly. September please.

[Rustinox]

A september update could be interesting to see what the sun does on these products.
And I'm surprised how well the regular WD40 does. Knowing that it's not it's first purpose.

[mkegadgets]

Please bring us back in September. For an update. It be nice if you have the cans on top of the samples as we talk about them. Just more of a visual affect.

[seanoldfather]

Keep up the good work! I'd also like to see the 9 month results.

[halfstep]

The best rust preventative I used is made by ZEP. It is called, IronClad. It is hard to find in single cans, but the stuff works really well and lasts forever. I use it on my milling machine. I like to spray some on the table before I mount the vice to prevent rust.