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Boxing Frame & POR-15 Questions

Discussion in 'Early CJ5 and CJ6 Tech' started by Jobhater, Feb 22, 2010.

  1. Feb 22, 2010
    Jobhater

    Jobhater A man without a Jeep

    Colorado Springs, CO
    Joined:
    May 27, 2007
    Messages:
    108
    I am about to get my CJs frame sandblasted then have a coworker come and box the frame. I have POR-15 ready to go on.
    How do you get the POR-15 on the inside of the frame when boxed? Should I go ahead, POR-15 it before boxing, and hope that not too much of it burns away while welding?
    Thanks
     
    Jobhater, Feb 22, 2010
    #1
  2. Feb 22, 2010
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
    Messages:
    3,437
    After it's boxed, leave the ends open. Run a piece of wire through the boxed rail, one end to the other. Attach a rag to one end. Attach another long length of wire to the rag.

    Soak the rag in the paint you want to use, stuff it into one end, pull it through the boxed frame using the attached wire, to the other end.
    Soak the rag again, pull it back through. Repeat multiple times until you have the best coverage.

    Simple but effective. This is how I cleaned, then painted the inside of the tubes on a D30 before I rebuilt it.
     
    lynn, Feb 22, 2010
    #2
  3. Feb 22, 2010
    kaiser_willys

    kaiser_willys Well-Known Member

    Joined:
    Jan 7, 2007
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    1,524
    they also make a weldable primer that you could put on first before you box it in, then do what lynn sugested
     
    kaiser_willys, Feb 22, 2010
    #3
  4. Feb 22, 2010
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
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    23,596
    Another possibility is to put your paint in a pump sprayer and spray the inside of the box with the wand. You'll need to leave access holes, but holes in the middle of the web (not in the rails) won't affect the strength of the frame.

    This spraying into cavities is done all the time with products like Waxoyl. You could also spray in something like chainsaw bar oil, which is said to be a very effective anti-rust treatment.
     
    timgr, Feb 22, 2010
    #4
  5. Feb 22, 2010
    double R

    double R Member

    Reseda, CA
    Joined:
    Mar 18, 2003
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    332
    you can also get a paint gun with a hose and wand attachment. i got an inexpensive one from jcwhitney several years ago but haven't tried it yet. Not sure if JCWhitney still sells them but i'm sure you can get them anywhere. POR-15 recommends buying their solvent if spraying.

    but it seems like lynn's method will work just as well and no hassle with sprays, solvents, etc
     
    double R, Feb 22, 2010
    #5
  6. Feb 22, 2010
    alex211

    alex211 Member

    Pennsylvania
    Joined:
    Aug 25, 2009
    Messages:
    441
    I'm planning on boxing my frame and having it sandblasted. I'm thinking about just boxing it in, then leave the ends in the rear open and plugging all the holes. Then I was going to just put about a quart of paint in each frame rail and tilt the frame around until the paint coated the inside. Anyone ever try that?
     
    alex211, Feb 22, 2010
    #6
  7. Feb 22, 2010
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Sep 22, 2002
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    8,360
    Yeah, don't coat it first. When that stuff starts burning, if it's too close to the welding, it'll contaminate the weld, resulting in poor welds..
     
    Patrick, Feb 22, 2010
    #7
  8. Feb 23, 2010
    Jobhater

    Jobhater A man without a Jeep

    Colorado Springs, CO
    Joined:
    May 27, 2007
    Messages:
    108
    Thanks for everyone's reply. I won't coat it before welding. I'll just try to figure out the best way to do it using your suggestions.
    Posted via Mobile Device
     
    Jobhater, Feb 23, 2010
    #8
  9. Feb 23, 2010
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
    Messages:
    3,437
    That will work well as long as any holes are plugged, duct-taped, or otherwise temporarily closed to contain the paint without mondo leakage :D

    Even with the rag and wire method, as the drenched rag passes holes, paint will run down the outside of the holes. Probably best to tape over them for the rag and wire, and spray methods too.
     
    lynn, Feb 23, 2010
    #9
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