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Unread 03-13-2007, 07:32 AM   #1
Sparty
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Undercarriage Rust and what to do to fix/prevent it?

2004 TJ Sport - ~50,000 miles.

This is my first hard winter in Michigan with the Jeep. I crawled underneath it yesterday and the undercarriage is starting to look rough because of rust. Iíve been through 1.5 winters out in Iowa, but they must use a TON more salt in Michigan.
I donít think Iíll be able to get to everything with POR 15 because of limitations on the equipment I have and have access to.
Does anyone know of an actual undercoating that works? A company that I can get to do it?

Or any other suggestions? TIA!

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Unread 03-13-2007, 07:56 AM   #2
Rocky529
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Jack it up, remove all the wheels, and have a field day with POR-15. Clean your frame, use a wire brush to clean it up... then just paint everything with POR-15.
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Unread 03-13-2007, 07:59 AM   #3
cleanhull
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Move out of the rust belt. I feel your pain though.
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Unread 03-13-2007, 08:04 AM   #4
Combatsylvania
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take it to a place that does Krown oil rust protection... that stuff is amazing.. they fill your frame and body panels..

periodically get a rinse doen through the winters

i feel your pain man, they salt the roads 5 months out of the year up here.
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Unread 03-13-2007, 08:08 AM   #5
Sparty
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Quote:
Originally Posted by Combatsylvania
take it to a place that does Krown oil rust protection... that stuff is amazing.. they fill your frame and body panels..

periodically get a rinse doen through the winters

i feel your pain man, they salt the roads 5 months out of the year up here.
Is that just in Canadia, or is there any in the US? I'll look in the meantime. Thanks!
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Unread 03-13-2007, 08:32 AM   #6
GW
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Waxoyl from Rovers North works really well. Its a parafin spray on oil/wax undercoating. Easy to apply and lasts about 2-3 years. Cheap. One can did my entire TJ. Just powerwash the undercarriage, clean off the surface rust, then waxoyl it. Its a lot easier to use that painting your frame, etc. Years ago I had a 86 Blazer that I rust proofed by spraying WD 40 into the door drain holes, fender wells and inside the frame rails. I drove that truck through 16 Michigan winters and the only rust it had was surface from scratches. Somewhat messy, but using WD 40 was cheap and really effective rust proofing.

Last edited by GW; 03-13-2007 at 09:35 AM..
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Unread 03-13-2007, 08:36 AM   #7
MotownTom
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This stuff is available all over and performs as advertised.
Runs about 6 or 7 bucks a spray can.

http://www.permatex.com/products/aut..._Treatment.htm
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Unread 03-13-2007, 09:26 AM   #8
Combatsylvania
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Quote:
Originally Posted by Sparty
Is that just in Canadia, or is there any in the US? I'll look in the meantime. Thanks!
Canadia? lol..

Uhm, no I think they carry it in the states... its like undercoating, but its only oil..

Krown Rust Control System is what its branded up here... ask any "quick lube" type palce about it, they can probably direct you to a shop, or something similar.
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Unread 03-13-2007, 09:41 AM   #9
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Yeah, Krown,Rust check, both pretty good. Something a little heavier is better underneath. I like Fluid Film for underneath. I'm considering Rhino guard with a Krown followup.
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Unread 03-13-2007, 09:43 AM   #10
LarrySchwegman
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If you decide to DIY. No matter what product, don't forget to protect yourself. Face, hands, arms, eyes. I did my truck frame last summer in gloves and a t-shirt. I had black freckles all over my face and arms for a week. If you use POR don't forget the UV top coat. I figured being the underbelly that it wouldn't fade. I was wrong, and now I have to do it again this summer.
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Unread 03-13-2007, 10:02 AM   #11
1BadJeepX06
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The average price for getting your frame Line-X'd around here is $300.. Sure it's a bit pricey but it'll last for the life of your Jeep and 9 out of 10 places do free touch-ups for the life of the vehicle..

DH
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Unread 03-13-2007, 11:13 AM   #12
Sparty
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Quote:
Originally Posted by LarrySchwegman
If you decide to DIY. No matter what product, don't forget to protect yourself. Face, hands, arms, eyes. I did my truck frame last summer in gloves and a t-shirt. I had black freckles all over my face and arms for a week. If you use POR don't forget the UV top coat. I figured being the underbelly that it wouldn't fade. I was wrong, and now I have to do it again this summer.

if POR 15 fades, does it need to be odne over again, or are you just doing it for color?



Thanks to all for the replies!
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Unread 03-13-2007, 11:57 AM   #13
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no...the properties of por-15 are not affected if it fades.
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Unread 03-13-2007, 01:52 PM   #14
Jamesdt007
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6 cans of 3M Rubberized Undercoating
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