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Anyone used a wet sandblaster?

Discussion in 'General Industry Questions' started by Welder Dave, Jun 19, 2019.

  1. Welder Dave

    Welder Dave Senior Member

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    I'm looking at getting a pressure washer and wondered if anyone has used one with a sandblasting attachment. The washer I'm looking at is 3.5 GPM and 4000 PSI.
     
  2. 92U 3406

    92U 3406 Senior Member

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    My dad had his logging trailer done by a guy with one years ago. He wasn't very impressed if I remember it right. Took a long time and the metal had a lot of surface rust when it dried. On the plus side it didn't dust out the neighbourhood.
     
  3. petepilot

    petepilot Senior Member

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    dave it depends on what you intend to do with it.it will work for some small jobs but don`t expect any serious work they are very slow& cover a very small area, flash rust is a problem however there is additives you can add to your water supply to prevent rust for a short period, I have basicly the same setup you are looking at i can run sand crushed glass or soda none of the three work as good as sand and air
     
  4. ianjoub

    ianjoub Senior Member

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    I've seen them used on boat bottoms. Good to keep the 'pollutants' contained. Not as effective as dry sand.
     
  5. Welder Dave

    Welder Dave Senior Member

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    I found a product called Hold Blast that is added to the water or applied directly after to stop flash rusting. I talked to a place that specializes in pressure washers and they would partially sponsor my track by giving me dealer cost which is about 26% off. I could put up their banner and offer a complimentary (or donations) bike wash station so riders don't have to go to the car wash. I looked at a 3 GPM 2700 PSI washer but for $350 more could get the 3.5 GPM 4000 PSI that would work with the wet sandblaster. My backhoe and my skid steer have paint missing and rust that I thought I could clean up and paint. I'm on a bit of a budget right now so not sure if I should get the bigger P washer and add the wet sandblast accessory later or just go with the smaller P washer. I'd have lots of time to do the blasting.
     
    Last edited: Jun 20, 2019
  6. petepilot

    petepilot Senior Member

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    the only wet sand blasters that are really effective production wise are the dustless systems at about 55.000 bucks. they work
     
  7. RZucker

    RZucker Senior Member

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    The "dustless" guy that does trailers and truck frames for me wont go dustless unless he's in an area that he has to. he said it's really inefficient. In my case he goes out back and lets 'er rip. It's strange, however he does it he doesn't leave much mess.
     
  8. Tugger2

    Tugger2 Well-Known Member

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    I would be very cautious sandblasting your machines , unless you are dismantling and painting components induvidually. Sand and bearings or bushing dont mix well and a blaster forces abraisives deep into the machine. I use a 5000 psi pressure washer to get the worst off of my machines,a good needle gun on heavy rust and the sander on large flat tin areas. Just my 2 Cents worth. P2050533.JPG P5060734.JPG
     
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  9. ol'stonebreaker

    ol'stonebreaker Senior Member

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    I watched a video of a guy using a blaster that used air and crushed dry ice. Completely stripped a '60's something full size chevy car in 45 minutes. Didn't have to worry about hitting any rubber components and when it was over there was nothing but paint dust on the ground. Very impressive!!
    Mike
     
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  10. petepilot

    petepilot Senior Member

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    right on .sand blasting wet or dry can & will create problems in any kind of machinery
     
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  11. Ronsii

    Ronsii Senior Member

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    I have one and it works ok for small to mid sized things but my washer is a 4000 and 4gpm which I felt was the minimum.... but who knows maybe run a different nozzle then mine??? the main thing is keep you sand dry and no oversize grains in it ;) as for the flash rust.. that's nothing compared to the rust that was on the metal before hand :) I started hitting it with a shot of ospho right after I finished blasting things.
     
  12. petepilot

    petepilot Senior Member

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    I guess i`m used to gettin the job done in a hurry
     

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  13. Ronsii

    Ronsii Senior Member

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    Go BIG or go home!!!!! :D
     
  14. alco

    alco Senior Member

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    64267BC5-CF3D-4644-9ABF-42BD3947BE35.jpeg Mine’s not quite as big, but it’s a huge improvement over the one on the right that it replaced.
     
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  15. petepilot

    petepilot Senior Member

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    nice pot . will get lots done if you have the air to feed it
     
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  16. gtermini

    gtermini Well-Known Member

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    I bought one a couple years back for a project. Bought 500 lbs of dried silica blasting sand for the job. I have a 13HP honda 4gpm pressure washer. You have to buy the correct sized water jet nozzle separate. I couldn't get the thing to draw sand through the siphon tube. Got fed up after a couple failed hours screwing around. Built a pressure pot blaster and used it to feed the pressure washer gun. Results were good, but I'll just standard blast anything else now as it's quicker and I have 100 cfm air available. You will get soaking wet and have wet sand stuck all over you. With my pressure fed gun, it ate about 1 cu ft of sand (100 lbs) per 8-12 minutes running 20 psi on the pot with the sand valve adjusted to where I thought it was efficient. Whatever you blast will flash rust instantly. Ospho or home depot metal paint prep (phosphoric acid) will brighten it back up. I just leave the chalky byproduct residue on and paint over it with oxide primer.

    [​IMG]

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  17. alco

    alco Senior Member

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    That it does, I borrow a friend’s 185 cfm compressor, but plan on buying something a bit bigger in the somewhat near future.
     
  18. petepilot

    petepilot Senior Member

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    it takes a 375 to really keep up with a 1/2 nozzle. but you can get some really DSCN0833.JPG good production
     
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  19. Ronsii

    Ronsii Senior Member

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    Now you're talkin'!!!!!! :)


    The Binford 375000 It goes to the next level!!! :D
     
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  20. td25c

    td25c Senior Member

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    We have one the same size as gtermini . 13 horse Honda with the sand blasting attachment .

    It works great on smaller projects . I use a plastic 30 gallon trash can to hold the sand & just stick the suction tube down in it .

    https://www.northerntool.com/shop/tools/product_200594733_200594733

    https://www.northerntool.com/shop/tools/product_200660204_200660204

    Like Tugger2 I am also apprehensive about sand blasting equipment . To many times sand gets in the wrong place if a feller aint careful .

    Used it to blast of the peeling chrome & rust on little brother's BMX bike .

    Made it Great Again !

    https://www.heavyequipmentforums.com/threads/bmx-bicycles.47280/#post-573659
     
    Last edited: Jun 26, 2019
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