Undercoating? Specifically for the off-road guys

Discussion in 'The Garage' started by BMAC96GT, Mar 5, 2015.

  1. BMAC96GT

    BMAC96GT Active Member

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    Hey guys. I bought a 92 Toyota pickup that I'm currently working on. I'll probably make a build thread for it at some point because I'll be spending a lot of time on it in the upcoming months. One thing I'm doing is a lift/wheels/tires and some work on the rear end and and I'll have the bed off, so now would be a good time to undercoat the frame/rear end...etc.

    I'm wondering if anyone had any input for good products to use on the frame of the truck? Theres not a lot of rust, and if it is rust, its just surface rust that I'll probably wire wheel off before painting it. Im open to any suggestions. I've heard a lot of good things about POR15. Any experience with that?

    Not necessarily looking for something for rust, just a good product to coat the frame with for protection and also because the underside will be more exposed with the lift.

    Any input is appreciated!!!
     
  2. Witzy0070

    Witzy0070 Active Member

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    I prefer no panties under skirts.
     
  3. BMAC96GT

    BMAC96GT Active Member

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    Well sometimes if what's under the skirt doesn't look good, panties are necessary
     
  4. sleepn_sn95

    sleepn_sn95 Well-Known Member

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    Por15 would be nice if you get it down to bare metal. Stuff is expensive though

    My bro-in-law uses rustoleum bed liner on his jeep for everything - bumpers, frame, wheels, body - it holds up pretty well and looks nice
     
  5. Caboose302

    Caboose302 Well-Known Member

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    My buddy had an old CJ5 that he had rhino-lined almost the ENTIRE thing. I wouldn't recommend it if you're on a budget lol. I can't remember what my dad and I used on the frame of our 67 Chevy. I'll have to ask.
     
  6. BMAC96GT

    BMAC96GT Active Member

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    [MENTION=10867]sleepn_sn95[/MENTION] I thought you left the rust because the por15 bonded to it? I know there's a lot of prep work involved with it regardless
    [MENTION=18390]Caboose302[/MENTION] not a bad idea. It would get pricey I'm sure lol


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  7. Caboose302

    Caboose302 Well-Known Member

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    If you're doing just the underside it probably won't be too bad. He had the entire body, skid plates, frame, axles and oil/trans pan done but it was a rock crawler and really had to scrape a rock hard to hurt it. Ended up denting a panel easier than scraping the lining off, lol.
     
  8. sleepn_sn95

    sleepn_sn95 Well-Known Member

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    I think it can be painted directly on rust but if you want to undercoat the entire frame I think its best to bring it down to bare metal

    From their site

    CAN I APPLY POR-15 OVER OTHER PAINTS?
    Yes, but you will lose the important benefits of POR-15. You must remember that ordinary paints are weakened by exposure to moisture. POR-15 can't stop rust if it isn't in direct contact with the base metal.

    http://www.por15.com/POR-15-FAQS_ep_61.html
     
  9. BMAC96GT

    BMAC96GT Active Member

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    @sleepn-sn95 hmmm I wonder if I should do that or not. My plan was to wire wheel the surface rust off. It would be a ton of work to wire wheel the whole thing down to bare metal


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  10. CC'S95GT

    CC'S95GT Legend

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    my 89 with 340,000 miles
    [​IMG]
     
  11. BMAC96GT

    BMAC96GT Active Member

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    Awesome man! I love these trucks. I looked for this model Toyota for a longggg time before I finally picked this one up

    [​IMG]


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  12. CC'S95GT

    CC'S95GT Legend

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    nice. Wish mine was an extended cab.
    Mine has Dalmatian spots currently. Gonna get painted as soon as the weather warms up.
    [​IMG]
     
  13. kvoriley

    kvoriley Member

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    If you are planning on using Por15, it adheres best to rust, so other than knocking of the loose rust on the frame, you don't want to bring it to bare metal, it doesn't adhere very well that way. If your frame is really rusty, I would go with Por15, it is some awesome stuff, extremely durable. It was perfect for my uncles F-250 because the frame was really rusty, when we finished it, it looked like new.

    If your frame is in decent shape, just spay or roll on some undercoating, it's cheaper and will do fine. I also heard you do not want to use an undercoating that is water-based.



    Also, Por-15 will fade if it has long exposure to the sun, so if you were planning on putting it on any body panels, you have to buy their top coat, which i believe is UV resistant.
     
  14. BMAC96GT

    BMAC96GT Active Member

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    [MENTION=19363]kvoriley[/MENTION] The frame isn't too rusty, just spots of surface rust here and there. I'm thinking Por15 is a little overboard for what I'm needing it for. I think I'm going to look into a spray-able undercoating of some sort. Not looking for a rubberized undercoating, but more or less a durable black paint type undercoating.
     
  15. DKblue98GT

    DKblue98GT Well-Known Member

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    Nice truck! I love Toyota trucks. I have had a lot of them over the years. My latest is the white 88 extracab. You should check out yotatech.com
    [​IMG]
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  16. BMAC96GT

    BMAC96GT Active Member

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    [MENTION=12219]DKblue98GT[/MENTION] nice trucks man! Love all of those. And yeah I stay on yotatech. I've been on there constantly. Getting ready to put 4Runner 4.88s in my truck and that site answered all my questions. Most of those guys swear by Por15 so I wanted to get some different opinions on here


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  17. whiplash473

    whiplash473 Moderator Staff SN95 Supporter

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    POR15. Clean the hell out of everything you're gonna spray and shoot this on there. It'll look phenomenal.
     
  18. CC'S95GT

    CC'S95GT Legend

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    SWEET TRUCKS. I used to be on yota tech as well. Havent been on there for a couple years though (I'm always on here). I Just picked up a 96 Runner for my daughter as a first car.
     
  19. BMAC96GT

    BMAC96GT Active Member

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    [MENTION=17027]whiplash473[/MENTION] Alright I'm gonna look into Por15 a little more. And there is a ton of useful information on yotatech, but I love this sn95forums a lot more. Yotatech just has so many users, it's just kinda busy for me


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  20. whiplash473

    whiplash473 Moderator Staff SN95 Supporter

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    We're here to help. Even if if means helping out an import truck. :nono: