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POR-15 question (not the same old question)

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by TX Mudder, Nov 13, 2001.

  1. TX Mudder

    TX Mudder 1/2 ton status

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    It's been some time since I did the floorboards in the truck with the POR. I finally ordered and receieved some more POR and prep stuff and want to do the entire floor including under the seat and behine the seat, under the window.
    The question is - what do I do about bolt holes?
    If I leave the bolts in and paint it, they will be stuck forever?
    I I paint it with the bolts out, won;t some wayward POR creep into the holes and really tick me off when I try t bolt the seat back down?
    This would also apply to using POR when painting an engine. They sell a kit for the engine that is simply POR and a colored topcoat. I assume one would paint the engine together to keep from getting it on machined surface. But would you have to paint over all the bolts? I just seem to be missing something.
    -- Mike

    <font color=blue> Married to a woman who understands the need for Hugger Orange. [​IMG]
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    For an engine I would mask off the machined areas and remove the masking as soon as possible. For the floor I would paint it with the POR 15 without bolts and use a drill later to 'clean' the holes out. Any blind holes I would fill with masking tape though.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
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  3. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    I would at least tape over any threaded/welded nut holes. Or, start a bolt and then paint around it. You could remove it as soon as the paint "sets" and clean it for reuse by dropping them in lacquer thinner (or whatever works best for POR). I don't personally see much point to using POR on the engine but that is just me.

    Russ

    85 K30 CUCV, 350 TBI, TH400, 205, D60/C14, 4.56 Locked
    Some day: 4" lift, 44" tires, massive cutting, shorter wb and rear overhang.
     
  4. TwoCrowsDesign

    TwoCrowsDesign 1/2 ton status

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    In the past, I've just jammed a cotton ball in the hole.

    You don't want to drill though, since I think we're talking about threaded holes.

    Another thing I've read (probably on this board) was to put a dab of silicone on the bolt when you install, to keep the moisture from coming back up and starting the rust process all over again.

    Have fun,

    John
     
  5. 45acp

    45acp 1/2 ton status

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    Try finding a paint/plating shop in your area. They have tapered rubber plugs that are used for exactly this purpose. Just push them in, paint, and pull them out. It's that easy and they are cheap.

    <font color=red> Bill, "Shop Rat" </font color=red>
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  6. CaptCrunch

    CaptCrunch 1/2 ton status

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    What I have always done and it seems to work good is take the bolts that go in the holes and mask the top 3/4 or so of the bolt w/ good quality masking tap and the 1/4 that isn't taped thread in until the tape hits... paint and remove the bolts after the POR15 sets up for 5 or so minutes.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
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  7. TX Mudder

    TX Mudder 1/2 ton status

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    Mikey, that sounds like the best way so far - I think that's what I'll do. Much thanks to all who replied.
    -- Mike

    <font color=blue> Married to a woman who understands the need for <font color=orange>Hugger Orange. [​IMG] <font color=blue>
     
  8. CaptCrunch

    CaptCrunch 1/2 ton status

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    No prob... glad I could help. Yeah I would get a little "testube" (I call them that cause we use them in the chem lab for that... dunno what the real name is) wire bristle brush to clean any that may get in a hole and a wire brush would clean up any if it was to get on the bolt. Now just be careful and don't get any Herculiner or POR15 on your "hookus" like that ford guy [​IMG] LMAO. That is so classic... [​IMG]

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  9. dyeager535

    dyeager535 1 ton status Premium Member

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    How about dipping the bolts in grease, and installing them, then painting? Grease won't allow the POR-15 to penetrate the threads, (and lubricate them if it does get a bit of a hold) POR-15 won't stick to the bolt threads since they will have grease on them, easier to thread/unthread the bolts later on, and the holes will be protected from rust for the future.

    Dorian
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  10. TheGeneral

    TheGeneral 1/2 ton status

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    Hey, already did this when I Rhino lined entire rig. Just get some round weahter stripping foam from local Lowes' or what not store, plug hole, paint, the remove, no problems, and cheap. Engine, if you paint it togehter, heads on, pan on, so on, take some wire and put in along mating surfaces and pull out after painting, I have some tape that has wire in it, but you can use just wire if you push in in with a putty knife or such. Very then wire, maybe 20 gauge or so.

    If you ain't hurt, you ain't playin' hard enough.

    The General
     

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