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Painting the under carriage...?

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Old 06-18-2010, 05:00 PM
cheapbeater cheapbeater is offline
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Default Painting the under carriage...?

Hey guys- been awile since i posted on here. I DO have some new mods but the truck hasnt been clean enough to take any pics.
Anyway, i am planning on painting the frame and axels before winter- i plan on parking the truck this winter so it will be safe from the salt. With the BL i can see more of the under carriage and would like to get it cleaned up a little. How should I go about this? should i scuff up the rusted spots and just paint them? Or should I scuff everything and paint it? I dont want to strip the whole frame down because thats too much work . Anyone have any input/ideas on how to go about this?
Also, any suggestions on what kind of paint i should use? I know a lot of the rubbery undercoatings just peel and flake off, I want this to last...

Thanks guys
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Old 06-18-2010, 05:08 PM
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best stuff to use would be POR-15..its pricey up here in alberta canada about 60 bucks a quart but its wicked stuff and tough!.. I believe you just wash the surfaces with a pressure washer, and wire brush and flakey rust off and then just brush on.
Not sure what it costs down in the states. and trust me this stuff will last!
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Old 06-18-2010, 05:26 PM
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I just use the undercoating you buy at O'Reillys etc. It' maybe $5 a can. It's a spray can about the size of the cans of spray paint you buy. I've used it for a few years and it holds up well.. Secret is to put thin coats on instead of caking it on. My Ram was beginning to rust up underneath and this stuff has lasted over a year so far. I think I might have used 3 cans to do the suspension, drive shaft rear end etc.
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Old 06-18-2010, 09:28 PM
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I Used Eastwood's Rubberized undercoating. Stuff works great. Just clean the surface and any rust and spray. Much easier to apply than POR15. I've done both. The surface must be prepped really well for that stuff to stick properly and it stains everything. HERE is the Eastwood stuff. Holds up pretty good against rock chips, but will needed to be recoated every 2 years i would say.
If you have a bit of rust, you could scuff it down and spray on an asphalt based undercoating. That will penetrate the rust and stop it from getting worse without primering and coating over that and all that stuff.
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Old 06-18-2010, 09:34 PM
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I Used Eastwood's Rubberized undercoating. Stuff works great. Just clean the surface and any rust and spray. Much easier to apply than POR15. I've done both. The surface must be prepped really well for that stuff to stick properly and it stains everything. HERE is the Eastwood stuff. Holds up pretty good against rock chips, but will needed to be recoated every 2 years i would say.
If you have a bit of rust, you could scuff it down and spray on an asphalt based undercoating. That will penetrate the rust and stop it from getting worse without primering and coating over that and all that stuff.
how does the eastwoods rubberized stuff hold up to salt? up here in canada they're big on putting salt down in the summer..and then the salty air on the coasts are nasty too. thats why im fond of por15...and i dont find it takes a lot of prep work when its gonna put years on your trucks frame lol.
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Old 06-18-2010, 10:12 PM
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This is what I use. It holds up and looks great! Take a red scotch brite and lightly scuff/knock the dirt off. Hose it down, and when it's dry spray bomb away.

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Old 06-18-2010, 10:15 PM
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Frog- Do you do a lot of tapping? Or just spray around stuff? That looks good!
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Old 06-18-2010, 10:16 PM
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yea here on the west coast its bad but im origionally from New Brunswick(east of maine) and the last vehicle i had there in 3 years had to get my bumper and all 4 fenders redone due to the massive amount of salt they use so much that on clear dry roads in middle of winter u cannot see the divider lines on the roads due to salt(sorry for babbling on).I'm in the works of looking for something also ill try that por15.Were did u get it btw
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Old 06-18-2010, 10:19 PM
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dam frog your underbelly is clean >..nice! btw is that a see threw rearend cover
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Old 06-18-2010, 10:49 PM
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yea here on the west coast its bad but im origionally from New Brunswick(east of maine) and the last vehicle i had there in 3 years had to get my bumper and all 4 fenders redone due to the massive amount of salt they use so much that on clear dry roads in middle of winter u cannot see the divider lines on the roads due to salt(sorry for babbling on).I'm in the works of looking for something also ill try that por15.Were did u get it btw
yea im originally from oxford nova scotia.. they use alot of salt but you never have icey roads lol.. i think this is where my paint buddy gets it from here in edmonton ( i usually buy what he has left over from odd jobs) but their is anothing place.. ill try to find the name of it and send you a pm
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Old 06-19-2010, 12:31 AM
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Ahhh ! I want the ClearGearz Diff cover Even if that one isn't the ClearGearz, it's still clear !
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Old 06-19-2010, 06:46 AM
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Originally Posted by Big_Wheel View Post
how does the eastwoods rubberized stuff hold up to salt? up here in canada they're big on putting salt down in the summer..and then the salty air on the coasts are nasty too. thats why im fond of por15...and i dont find it takes a lot of prep work when its gonna put years on your trucks frame lol.
This is my underside after 2 winters here in the super salted Northeast, BUT, i do spray my truck down if it's salted up pretty bad and I always squirt underneath everytime I go to the wash. I sprayed 3 cans total underneath which came out to 2 even light coats. Figure 5 cans for 3 light coats which is what i would suggest doing. I purchased a few more cans to build it up a little more,but it's def solid stuff. Now, you can scrape the stuff if you tried as it's rubberized but not one spot has peeled/chipped or flaked so it sticks real good. I put tape over all of the bolt threads or any thread that would/could later be used. One thing mechanics HATE is super thick undercoating that covers all the bolts and threads. The stuff sprays super clean and looks great.
Click the image to open in full size.
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The frame itself is sprayed with the shootable liquid, but the airbag bracket is sprayed with the aerosol stuff. Blends in real well although the aerosol stuff seemed to be a little softer prob because it sprays a little heavier than out of an undercoating gun. I used only 1 aerosol can to get the areas the sprayer wouldn't reach,m plus the cans are good for touch ups since it blends in so well and is tuff stuff itslef. MUCH better than the 3M stuff sold at the local aut parts store. I've used both and there is no comparison.
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Old 06-19-2010, 09:24 AM
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thanks dirtydog.. does it clean up nice? like does mud stick to it?
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Old 06-20-2010, 10:52 AM
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thanks guys... i've heard of that por15 but it is a little too expensive for me, and the prep work is more than i want to do...
i really like the look of that stuff frog used, and it is available locally- i think i'm gunna try that...
RF- that diff cover is badass!
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Old 06-20-2010, 11:00 AM
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thanks dirtydog.. does it clean up nice? like does mud stick to it?
Cleans up pretty well. Yes a little bit does stick to areas underneath where you can directly shoot it with the wand, but for the most part, it's clean anough to make me happy, but I'm not an offroad junkie so if you are, you may want to use something else such as a paint like RF showed.
I didn't want a paint because it's prone to chips and peeling because it's very thin. I actually wish I sprayed that stuff RF used first and then did the rubberized undercoating over the top of it.
I'm pretty sure that the stuff is paintable though which would eliminate the possibility of any stick mud in places like fenderwells...etc
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Old 06-20-2010, 12:06 PM
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cool man, i think the por15 epoxy is close to the stuff RF is using.. just not in aerosol form.
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Old 06-20-2010, 12:06 PM
 
 
 
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