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Thread: Molasses dip for car bodies

  1. #1
    Carby Row Tree luvr edo's Avatar
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    Molasses dip for car bodies

    I saw a thing on Ch31 last night & this dude has a massive tank in his back yard that he uses to strip car bodies. Apparently its filled with 16000 litres of molassses...it removes paint & rust apparently.

    Anyone heard of this?....I knew you could make molasses cookies & that you bung it on horses feet if they get dry & crack but geez, is there anything it cant do?

    Wondering if this is a realistic option for stripping the capri...I assume its not acidic (massive assuption) & therefore wouldnt cause rust if a bit was left over.

  2. #2
    2ofdem
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    Ive heard about it being used on panels but its a strip everything then dip it in as a rust treatment thing.

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    Just get a big tank of dichloromethane (methylene chloride). Will strip paint and not be too acidic or caustic.

    Try not to breathe too much in.

    Maybe take note of this too.

    http://www.nicnas.gov.au/Publication...loride_PDF.pdf
    Yes we Chemistry

  4. #4
    Carby Row Tree luvr edo's Avatar
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    Sounds like something I want nothing to do with Lumpy

    I reckon I'll still get it media blasted...will those blokes do underneath & everything as well? Or does it need to be on a spit for that?

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    Naughtius Maximus JayTHEFordman's Avatar
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    Quote Originally Posted by lumpy View Post
    Just get a big tank of dichloromethane (methylene chloride). Will strip paint and not be too acidic or caustic.

    Try not to breathe too much in.

    Maybe take note of this too.

    http://www.nicnas.gov.au/Publication...loride_PDF.pdf

    Yeah, this does paint real good, and is a main component of many paint strippers. Definitely not good to breath, it will fuck you up very quickly. If it doesn't kill you immediately, cancer will probably get you later on down the track.
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    particularly when your body is functioning like a 1970s Alfa made by drunken chimpanzees on a Friday afternoon

  6. #6
    New Zealand bro Dave's Avatar
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    soda blast

    /thread
    Quote Originally Posted by Turbo Yoda
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    I was just mucking around although a few furniture stripping places have them. There are "safer" alternatives around these days that are less acutely toxic.

    I thought the biggest problem with dipping was the removal of paint from all the little nooks and crannies that you miss when it gets sprayed after dipping, leading to rust problems further on.

    Dip then hot-dip galvanising would be the way to go! I wonder if anyone has a big enough tank to galvanise a car.
    Yes we Chemistry

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    They probably do if your pockets are deep enough
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    Quote Originally Posted by rollin7
    but I'm seriously in love with this thing ...the pure uselessness and dickheadness of this mustang makes it the most enjoyable car I've ever driven, its fucking STUPIDLY loud for no reason, it gos real fast but wont slow down, they have made the suspension real hard and yet and it wont corner worth a shit. theres something very Aussie about it, like the drunk guy who makes a hat out of watermelon.

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    Carby Row Tree luvr edo's Avatar
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    Quote Originally Posted by Dave View Post
    soda blast

    /thread
    Yeah I think thats what will happen...hope they dont mind crawling underneath to get all the gunk off

    Once its all cleaned up, how long can I leave it before I have to paint it...because there will be a bit of work I have to do between these stages.

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    After stripping a whole car by hand theres no way in hell I would do it again unless I was a poor student with heaps of time and no money (again).
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    Quote Originally Posted by rollin7
    but I'm seriously in love with this thing ...the pure uselessness and dickheadness of this mustang makes it the most enjoyable car I've ever driven, its fucking STUPIDLY loud for no reason, it gos real fast but wont slow down, they have made the suspension real hard and yet and it wont corner worth a shit. theres something very Aussie about it, like the drunk guy who makes a hat out of watermelon.

  11. #11
    New Zealand bro Dave's Avatar
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    just get some car tyres and tip that fucker on its side.


    b.t.w. don't do this
    Quote Originally Posted by Turbo Yoda
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    edo I think they normally epoxy prime it up straight after so rust doesnt set in with a lot of these blasting services. Probably optional but I'd be inclined to take it up. All it takes is a brush of a sweaty hand or a really really humid day and rust will start within hours of stripping.
    302 Ford Windsor Technical Forums

    Quote Originally Posted by rollin7
    but I'm seriously in love with this thing ...the pure uselessness and dickheadness of this mustang makes it the most enjoyable car I've ever driven, its fucking STUPIDLY loud for no reason, it gos real fast but wont slow down, they have made the suspension real hard and yet and it wont corner worth a shit. theres something very Aussie about it, like the drunk guy who makes a hat out of watermelon.

  13. #13
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    Quote Originally Posted by lumpy View Post
    Dip then hot-dip galvanising would be the way to go! I wonder if anyone has a big enough tank to galvanise a car.
    Industrial Galv in Brisbane do, they dip light poles in it.

    Hot dipping something like a car sounds like the work of the devil to me though.

  14. #14
    Carby Row Tree luvr edo's Avatar
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    Cov3r, Oh, that sounds sensible...I might organise to get this done fairly soon then.

    In case you hadnt noticed...my experience & knowledge regarding bodywork & paint is pretty much zero.

  15. #15
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    I thought hot dipping a car would warp the crap out of it, thin panels. I've looked at heavyduty, read rated more then my car at the time, 6x4 box trailers in the past and most of them were warped after the hotdip gal. The sales bloke even stated they have a disclaimer saying that the trailers WILL warp when hotdipped.

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    In global warming denial Soarin's Avatar
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    Quote Originally Posted by lumpy View Post
    Dip then hot-dip galvanising would be the way to go! I wonder if anyone has a big enough tank to galvanise a car.
    The local (Industrial) galvanisers are limited to 1.7m wide (possibly not an issue), otherwise length and height should not be an problem for most car bodies. The biggest problem would be blowing holes in everything so that it all fills and drains properly. Price would run to over $600, and the finish would be pretty shite, plus any chips in the paint will probably blister from the white rust.

    EDIT: too slow. And good point Euroboost - car panels are going to be thinner than plate trailers.
    Last edited by Soarin; 16-01-08 at 11:23 AM.
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  17. #17
    Opens HoonBoy's Avatar
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    I got a bonnet dipped in some sort of chemical. They then put some other sort of chemical on it to stop the rust. It sat for a few weeks before it was pulled apart for repairs and there was no rust on it. However, the skin had to come off the frame so it could be painted where you can't get to but rust like to start. I don't see that being easy with an entire car.

    Most primers are only good for a few months before they suck up moisture or get to a point that you need to strip it off before doing the proper painting. I would wait until it was ready for paint before getting it done.

  18. #18
    Carby Row Tree luvr edo's Avatar
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    Im just reading a bit on Soda blasting...sounds like it might suck

    http://www.hotrodders.com/forum/soda...=soda+blasting

  19. #19
    Brock what are you doing? Smashed S15 Bloke's Avatar
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    There is a big ad inside the cover on Unique Cars re: soda blasting.

    seems to be the go.
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  20. #20
    Registered User fezi's Avatar
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    I'm sure there was an article in Street Rodding about the molasses cleaning shite a few issues ago...

  21. #21
    Registered User thechuckster's Avatar
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    molasses dip would encourage rust if you didn't remove it all post dip - and as it has the consistency of diff oil - you'd need tonnes of hot steamy water to disolve/remove the gunk - thus making the thing extremely prone to rust.

    coating an old knife sharpener in molasses, letting it drip dry then hang it out in the weather for a while is a way of encouraging rust and pitting - thus making the knife sharpener useful again - hardly what you want to do your car.

    soda blasting is reputed to be a lot softer on panels than sand - some places also use a media made of crushed nut shells?
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  22. #22
    Opens HoonBoy's Avatar
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    You don't want soda blasting. It will only remove the paint, then you will have to pay someone else to remove the rust before repairing it. If you get the correct stripping process, the rust will be gone at the same time.

  23. #23
    Sidetracked BMWTurbo's Avatar
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    Hot Dip Galv would add a big chunk of weight to the car. It would also create an average finish to the panels, if you could get them to stay straight.

    I've had a mate who Soda Blasted his car prior to respray, bog and rust can stay in panels, and you get 'grit' everywhere, it's a nightmare to clean out.

    A light sand blasting would probably be cheaper, but again you have to deal with product in nooks and crannies.


    What is the purpose of the stripping? show car paint finish or just clean neat and tidy?

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    Quote Originally Posted by thechuckster View Post
    soda blasting is reputed to be a lot softer on panels than sand - some places also use a media made of crushed nut shells?
    Normally walnut shells dried and crushed to whatever size is needed.

    Very effective but I have no idea of the costs.

    Cheers , Pete.

  25. #25
    Carby Row Tree luvr edo's Avatar
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    There is bugger all rust in the car as it is...

    I was just interested in this Molasses thing as I had never heard of it.

    Apparently soda blasting is likely to leave caustic deposits in places you cant get to just like dipping does. The suggested solution is anything from glass beads to plastic to walnut shells...

  26. #26
    Carby Row Tree luvr edo's Avatar
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    Quote Originally Posted by BMWTurbo View Post
    Hot Dip Galv would add a big chunk of weight to the car. It would also create an average finish to the panels, if you could get them to stay straight.

    I've had a mate who Soda Blasted his car prior to respray, bog and rust can stay in panels, and you get 'grit' everywhere, it's a nightmare to clean out.

    A light sand blasting would probably be cheaper, but again you have to deal with product in nooks and crannies.


    What is the purpose of the stripping? show car paint finish or just clean neat and tidy?
    Its a race car & I just want to remove all the crap that its various resprays have left it with...I also want all the filler & seam sealer gone so that everything is done nice & new again.
    I also want to remove great globs (yes, I made a word) of that bloody spray on body deadener that is all over the underside.

    Oh, I had never really considered gal...its a dumb idea for a huge number of reasons!

  27. #27
    Registered User thechuckster's Avatar
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    if it's the bitumenous stuff you could freeze it off - lots of found CO2 fire extinguishers? make wire tray and fill with dry-ice and attach to underside of car for 30 mins - bash off frozen sound deadener (and make dry-ice bombs in 1.25 litre pepsi bottles with left-over dry ice)?
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  28. #28
    Carby Row Tree luvr edo's Avatar
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    Ive seen that they do dry ice blasting....not sure how that goes with cars

    Its not that thick blanket of crap that is on the inside of the floors in newer cars just that spray on crap...dont need to do the freeze thing on it to get it of

  29. #29
    Registered User Motorsportlady's Avatar
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    I borrowed a hand held bead blaster from a panel beater, was like a commercial vacuum cleaner only bigger. The end was like a vacuum cleaner brush attachment it propelled the beads out the centre and vacuumed the grit and paint chips around the outside....borrowed it for many weekends on end and eventually got the whole car done.

    Another car I had commercially sand blasted then etch primed straight away...much quicker
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  30. #30
    Opens HoonBoy's Avatar
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    Quote Originally Posted by edo View Post
    There is bugger all rust in the car as it is... but I haven't looked under the paint yet so it could be full of rust and bog.
    Fixed

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