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JB welding steel stick work on small hole?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Janny, Feb 20, 2024.

  1. Janny

    Janny Junior Member

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    Got a tiny bit of rust on the top part of trunk trim ( on the far right side closer to right side of roof trim and below the top hatchback door hinge area). I used Rustoleium Rust Remover on it and used sand paper. There is still several black spots on it and a hole about 1 inch by 1/4 inch. I was told by Home Depot I can use Jb welding steel stick and then when it dries, use Toyota touch up paint. Is this correct?
    I really don't want to pay a bunch of money to an auto body shop . I do not have any tools other than sandpaper. Honestly, this is already a big project for me with limited job skill.

    TIA
     
  2. Kthi

    Kthi Junior Member

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    Janny my experience with that product line is that you definitely need the edges of your material rough so use 80 or 60 grit sandpaper on both sides if possible. The stick is a two part epoxy when you cut a little off and mix it applies pretty easy, like using silly putty. You don't have to be perfect because you can shape it down to the car with sand paper after it cures. I'm assuming you will use the metal weld, which is silver in color. I believe it is paintable, been a while so just check packaging. Your final paint area will be a little larger than the hole, so you might end up doing a couple coats of touch up paint and you don't have to paint it right away, if you wanted to wait for weather to clear. Good luck! $10 bucks and some effort is worth it. If it doesn't work out you can always bring it into someone.
     
  3. PriusCamper

    PriusCamper Senior Member

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    Was this car from out east where there was salt on the roads? Have you found rust elsewhere? You'll be pushing the limits of the epoxy to fill a hole that big, but maybe not? Hard to imagine based on your description? Can you post some photos?
     
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  4. Tombukt2

    Tombukt2 Senior Member

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    You see that hard stuff that's in the trunk under your spare tire You can buy stuff like that It's made to bond body panels of metal together that's what Toyota used when they put the individual pieces of the unit construction together on the assembly line You see this glue all in between squeezing out where they put together the rear quarters so on and so forth You see it all over the car you can buy that stuff from 3M It's very similar to the windshield polyurethane that you buy for $30 in the caulking tube It's the real deal then you would trim any rust out preferably with something like a Dremel and create a shape that you can cut out of a piece of metal that you might buy at home Depot or something or I guess if you were really experimental you could use a piece of aluminum and then you would apply with glue a dowel to the piece of metal after it cuts it looks like it's going to fit perfectly You glue a piece of a piece of wood or a piece of plastic like a golf tee to the piece of metal let it dry well. And then take the glue that you've bought whether it's urethane or the stuff made by the car dealer whatever put that on the metal patch around the edges you've made slip that into the hole twist it to where it lines up where you like it then lift up on the golf tee trying to squeeze out some of this bonding agent that you've applied let that dry and if you've done your job well you won't have to do much else once that's dry you could trim away any excess sealant and pretty much just let it rip that sealant generally will not allow water to pass through what you just sealed but you need a patch there not just cram the sealant into a bare hole. And if you had tools after all that's dry you break away the golf tee you'd use your little electric sander to go over your work put some tape around it the work sand over it add some light body filler you mix it up spread it with a plastic scraper let that dry sand it and you probably can't even tell where the patch is then you could leave the tape on and put a little primer over that and then hit it with a little duplicolor spray paint. And you might have something
     
  5. Janny

    Janny Junior Member

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    I don't know. it says Jb Weld Steel stick ( silver color tube)
    No , not in the East Coast. Southern California .
     
  6. Tombukt2

    Tombukt2 Senior Member

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    Try cutting a piece of tin metal or aluminum. Adjust the hole on your car so that you can angle and twist this piece you've made in I put all the instructions above give it a whirl do not try to fill holes this size with just crap out of a tube or a two-part mix it's kind of problematic it'll just fall through if it sticks it all generally makes more of a mess than anything else how long do you think you're going to be keeping this car not that long they make metal tape for the HVAC industry You can buy it at an HVAC supply store It is metal tape It has the sticky side is so sticky when you set it down on some pre-warmed ductwork or piece of metal you will never get it back off in one piece You will need abrasive scrapers whatever that sounds like it would fix your problem for many moons to come and you'll probably be out of the car before even thinking about it again if your car is a pretty neutral color you could hit the metal side of the tape with a similar rattle can of color and almost not even see it but I wouldn't try to use two-part mix or something out of a tube like caulk or urethane or anything like that usually it'll just fall through and make a mess another way you could probably make your two part mix more viable is taking some foam like spray foam insulation and giving a shot inside of your hole watch the spray foam rise as it comes up out of the hole let it dry when that dries take a razor knife and slice it level with the car now if you really have to you could take a two-part mix of something like Bondo put tape around the area you're working on as wide as the spreader for the bondo this narrowest one. Mix your Bondo up it's a two-part mix similar to the JB well you've got 20 minutes working time and spread some of that like you would trowel mortar for tile let that dry 20 30 40 minutes and you can sand it and then primer it and or paint it.
     
  7. Janny

    Janny Junior Member

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    Was...thanks so much for the input...I honestly don't think I have the self confidence to do this. I wonder if any DIY Prius folks here living in Los Angeles or Orange County want to make a bit of money to do this for me. It would cost way too much to bring to auto body shop.
     
  8. Janny

    Janny Junior Member

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    Can I buy it at Home Depot or amazon? HVAC metal tape. Would foam inside hole and then HVAC metal tape work...I need something very simple.
     
  9. Tombukt2

    Tombukt2 Senior Member

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    Yes some urea foam which is like what they use for insulating you'd probably want the clothes to sell It's like what they put in a beer cooler when they make that I think great foam is closed cell foam. And then after that completely dries you trim it down with a blade get it nice and level then you could lay a piece of metal tape over that repair over that phone and let it go 3/4 of an inch on to new fresh metal paint it or not doesn't really matter when that stuff sticks down do not try to pull it up You can smooth it and play with it the mastic underneath the thin metal will undulate and move with a scraper with a plastic scraper or the thing you put that vinyl wrap stuff on with and you just smooth it out you can heat it with the heat gun a little bit if it's chilly out and make it late really flat and then just let that sit nothing's going to bother that for quite a bit of time especially if you dremeled the excess rust around the hole off the brown looking nasty cancer You want to eat that up with your Dremel doing it with a pair of snips is not so nice because the snips when you cut making edge that's harder to deal with so if you can just use a Dremel they're very inexpensive with the sanding drum on it and just wiz out the hole and get the rust off the brown Make everything nice and silver and then put your phone in trim put the metal tape on top of the silver that you just created if need be heat the tape a little bit while you're running over it with the scraper plastic scraper and then leave it that BS repair should outlast you and the car.
     
  10. Danno5060

    Danno5060 Member

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    It's been my experience that something like that may fill a hole but doesn't provide any usable structural strength. When you said it's near the hinge, that makes it sound like that area really needs structural strength too, or that fly-by-night repair will break out soon.

    Maybe you could find a hatch from a wrecked Prius and install it on yours instead?
     
  11. Mendel Leisk

    Mendel Leisk Senior Member

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    Approach a body shop? It’ll likely be at least $200 USD, but it’ll be seamless.
     
  12. Tombukt2

    Tombukt2 Senior Member

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    Yeah if it's on the hatch by all means on both the hatch and replace it they're extremely inexpensive and plentiful hatches will be no problem to find generation two or three
     
  13. Janny

    Janny Junior Member

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    Not close to the hinge but wanted to say below that line but on the far right side
     
  14. Janny

    Janny Junior Member

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    I stopped by one autobody place and was given a quote of $350. Said they would cut out the hole , fix it then paint it. I would need to leave my car for 2 to 3 days.
    Another shop I went to gave me a price of $700 for fiberglass route and then paint. If I want welding to remove all , it would be $1200.
    Quite a difference so I think it is hard to trust anyone.
    I think the route I will take for now is to just continue with Rustoleum dissolver and see what else will come out.
    Then perhaps use some jb weld steel stick and then that HVAC metal tape or Flex seal tape. I only want to stop the spread and plug up the hole so no water will seep in.
    The one with the quote of $700 and $1200 said to not even worry about it and just silicone it to prevent water to go in cause my car is an older car.
    I will be going to Hybrid Pit next week for appointment. Perhaps, I can get some insight.
     
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  15. Janny

    Janny Junior Member

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    Here is photo
     

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  16. Janny

    Janny Junior Member

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    Here is a close up
     

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  17. Janny

    Janny Junior Member

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    I posted 2 photos...Finally figured out how to do it.
    Thanks
     
  18. Janny

    Janny Junior Member

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    Both autobody shops I had quotes for were not overly concern and said no one even would notice it. I am just worry that it would end up being a major problem. I finally posted 2 photos...took a while to figure it out but did so.
     
  19. ASRDogman

    ASRDogman Senior Member

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    Sand it down the best you can and try to get all the rust removed.
    You can get some screening for drywall patches, and use that to cover it.
    Use some bondo, or fiberglass. Then sand it smooth and paint it.

    You NEED to patch that. Everytime it rains it filling your car with water.
    It will eventually rust out where the water settles....
    Maybe an hours work?

     
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  20. Janny

    Janny Junior Member

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    Thanks. Will do . I just bought the car recently. There was 2 inches of water in the battery compartment. I guess it was from the trunk hole with water seeping in.
     
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