[jwcgmc1985]

Undercoat here


Down in salt less / snowless Houston

 

[Dart.340]

at our shop any vehicle that comes in for under oiling gets a 3 stage process, first if its not spotless on the under side it gets steam pressure washer then fans set up to dry the underside, after it is dry we use a product called oto protect, it is an oily grease it has the consistency between honey and molasses, I spray inside the frame rails and the entire underside, especially where those plastic hangers are for the brake and fuel lines, inside the rocker panels, hood, doors, and tail gate we spray crown rust proofing oil on the inside edges and it is very good at creeping thru the seams, then a thick coating of oto protect after inside the doors, hoods and tail gate, it may sound over kill but the stuff they use on the highway around here is aggressive, with all the salt my truck goes from black to white of grey on a winter day and the new liquid salt they precoat the roads with is even

the only down side to this process is working on the underside is a dirty bitch lol , i'll post photos in a couple day's when my new fass set up comes in and I lit her up on the hoist

 

[FarmerJon]

I think Im just going to use a wire wheel, some rustolem and a 12pack of bud light. The first nice saturday afternoon we get.

 

[Dhouston]

I live in the Rust Belt, they plaster the roads with Salt, and i mean just hammer it out on most County and Provincial roads, and now they even use a spray that is even worse.

We always use a drip-less oil spray, no this will not hurt your veichle it only helps create a barrier from the salt, and pretty much anyone who doesn't do this to your viechle is gaurented to have major paint issues within probably 4 to 5 years. i had a 03 Grand prix that i sprayed twice a year, and the thing still had paint on the frame (Red) paint. now you ask anyone from Canada or in Michagain thats very much uncomon. But this summer because of Crack heads my 03 Grand Prix now rests ontop a a junk pile, RIP haha

Anyone who is up in the air and says it's going to damage your vehicle i think i would do a little more research on it, you can even get different colors and sents for this stuff now.

 

[sethdrussell]

You an buy an undercoat spray gun at napa cheap and we just spray bar and chain oil you can dilute it if needed to spray it. Stuff hardens up real nice and doesn't drip everywhere.


Sent from AutoGuide.com App

 

[BillPeters]

I have some bar and chain lube, I think I'll try and use a weed sprayer and hit the underside of my truck

 

[firebird77]

I have some bar and chain lube, I think I'll try and use a weed sprayer and hit the underside of my truck

That's what I did, worked pretty well. I used a mixture of waste motor oil and kero.

 

[Stretch44875]

I had the Krown rustproofing from Canada done, they have a couple places in the states that will do it. They go in the rockers, tailgate, doors, hood, etc. Stuff reminds me of motor honey, or STP. Working on the truck underneath can be oily now, small price to pay.

I also bought 5 gallons of the stuff, for doing my other vehicles. If you warm it up, it sprays very well from a paint sprayer.

Bought the trucks used from texas, so it is perfect underneath. Living in Ohio, I hope to keep it that way.

 

[ZiGBlazer]

I tried undercoating. Looked a bit, and tried KBS for mine. I liked the degreaser, but the rust converter didn't live up to my expectations. I followed the 3 step process as best as I could. I also used it on the new bare steel bumper. 1 Minnesota winter later I had rust poking through in spots, as well as large chunks of paint flaking off. I didn't have much rust to begin with, just surface rust mainly near the rear wheels. At least KBS stood behind their product and gave me a full refund. I can't say anything bad about them. My thoughts are that there was something wrong with the thinner (they supplied), or a bad batch of paint. That combined with the rust converter not working as well on MN rust, is my guess as why it failed.

This year I tried spraying it with oil/diesel mix. I used some cheap oil rather than used oil. But I couldn't get the yard sprayer to work. I gave up and used my wagner paint sprayer instead. It worked awesome, and I may just buy another and keep this one for spraying oil. We'll see how it does over time. I sprayed the truck and my 2012 car that had no rust.

 

[XS ive]

Do the 2014's have wax dipped frames? It sure looks like they did it on mine. I sprayed some simple green and hosed off the mud/salt/sand mixture from driving through 3 states in a winter storm. I hate rust. And on a lifted truck you see more frame and suspension parts. Will repaint what I need to in the spring.

 

[dLmBa7x]

Simple solution here. Strip under carriage of all junk rubber undercoating. Paint with POR-15. Spray with WD-40. Park in garage till spring comes around. Enjoy shinny black under carriage :neener.

 

[ieetgluu]

I just sprayed my moms Traverse's undercarriage with Fluid Film. Did some research on it and it seems to be the stuff to use. It is very harmless as far as MSDS goes. The stuff looks like caramel and sprays easily. I picked up a kit online from kellsportproducts.com that had a gallon of it, spray gun, 2 cans for the gun, aerosol can of it, extension hose for aerosol can, and plugs for drilling holes if you want to take out that far (I didn't drill holes). Kit was $70 with coupon code and should last all winter. I'll see how it works. I didn't do my truck yet since I don't drive it in winter but I probably will to keep the underside mint. Took me about an hour and a half to spray everything with it on jack stands with the wheels off.

Sent from AutoGuide.com Free App

Fluid Film is good stuff. Did mine with it.

^^ This. Its what I use, but sadly I didnt get to it before this winter

I have some bar and chain lube, I think I'll try and use a weed sprayer and hit the underside of my truck

Theres a guy in my state that uses bar n chain heated up and sprayed on. Id say its the best option, but I went for Fluid Film as it was something that I could do in my driveway without an oil slick everywhere

 

[GreenFlyingDragon]

You might consider using Boeshield. It was developed by Boeing Aircraft Company to treat areas of aircraft that needed corrosion protection, but that were not readily accessible once the aircraft was constructed. It will displace existing moisture, "creep" under rivits, weld lines, etc. and leaves a persistent, waxy coating.

To evaluate competing products, apply them to identical metal pieces and submerge in a warm salt water solution. Ignore for a week or ten days, then examine the results. My results have always shown Boeshield to be the most effective.

I've been able to purchase aerosol cans of Boeshield at Wood Workers Warehouse and at Camping World, either in stores or via their web site, for about $9/can.