Soda Blasting

  1. Hi,

    I have some old carburetors that I want to clean up and have been advised that Soda Blasting is probably the best method.

    I have been quoted £50 to get them done but thought I would have a look at doing it myself.

    Can anyone recommend a cheap kit or DIY. I have a Snapon Compressor that I used to spray my car.

    Don't need a cabinet (I thought I would make one)

    Thanks
     
  2. slim_boy_fat

    slim_boy_fat Forum Supporter

    I understand it's pretty messy, how many carbs do you have to get done?
     
    mtt.tr likes this.
  3. Wallace

    Wallace Member

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    Vapour blasting brings them up nicely, send them off and save the hassle?
     
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  4. tom-madbiker Member

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    i like JonnyAlpha like to try to do things like this myself and even if i costs a little more i use it as a learning experience i cant see any reason why it would not work in a cabinet tho perhaps trying different media might be a good trial one day im gonna have a go with walnut shells but i expect sugar to work too jus dont get it damp
     
  5. fizzy Forum Supporter

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    4,434
    uk
    The problem with soda blasting is it is very hygroscopic. Perhaps there is an other soft powder that would work? I have a sack of Bentonite perhaps I will give it a try.
    The ultimate process is dry ice blasting - from the sublime to the ridiculous - sorry couldn't resist!
    Seriously though dry ice blasting is the cleanest process there is. Needs very specialist equipment though!
    I have hear walnut shells are also very good.
     
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  6. brightspark

    brightspark Member

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    if you want a nice peened finish use beadblasting it causes no damage on machined surfaces
     
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  7. tom-madbiker Member

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    213
    Location:
    Chesham, UK
    never tried either but i always try to think outside the box not sure bentonite would work bit soft i think and as for getting it near water i can imagine the mess i used to work for a geotechnical company so i hate the stuff
     
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  8. brightspark

    brightspark Member

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    been using beads and sand as well as expendable grit for 45 years now .all my gear is home made and similar to guyson and Clemco design ;)
     
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  9. fizzy Forum Supporter

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    I will HAVE to try it now gggrrr!
     
  10. outofthefire

    outofthefire Member

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    Leeds
    have you tried cat litter (clean obviously), saw a video where it was used in a vibration polisher made me wonder.
     
  11. rcx132

    rcx132 Philip

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    It doesn't work anything as good as the videos claim.
     
  12. outofthefire

    outofthefire Member

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    but is it any good as a cheap blasting media?
     
  13. brightspark

    brightspark Member

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    not for blasting under pressure no. it may work for gentle clean up in a tumbler but I doubt it
     
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  14. rcx132

    rcx132 Philip

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    I tried two tumblers. One was a pro Frost tumbler. It helped polish up the parts but wouldn't really remove rust. I also tried a gemstone tumbler. That did nothing.
     
  15. Cobbler

    Cobbler Codger bodger

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    I got a mate to blast a cycle frame over 30 years ago, they used crushed walnut shells apparently. I'd never heard of it, but it made a really good job of it, stripped all the paint, but left the steel untouched.
     
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  16. Shox Dr

    Shox Dr Chief Engineer to Carlos Fandango

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    Location:
    East Yorkshire
    I used soda to strip a fibreglass fuselage, a while back. I found less media worked well, as it does get everywhere.
    It was a Real poor setup with little air drying. Soda was still mobile days afterwards in the pot.
     
  17. brightspark

    brightspark Member

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    if you want polished on aluminium just get buffing with different grades of polish and using different grades of wet and dry abrasive before you start .bead and sand wont give you a suitable finish before you start it will clean and peen the surface giving a decent finish but not for polishing
     
  18. postie jon Member

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    soda will remove paint but not rust.
     
  19. brightspark

    brightspark Member

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    for corrosion and paint on aluminium I use sand 1st then beadblast. sensitive machined parts just beadblast using a suction gun
     
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