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Hot Rods Power Washer Media Blaster

Discussion in 'The Hokey Ass Message Board' started by ziffer, Feb 22, 2023.

  1. ziffer
    Joined: May 4, 2005
    Posts: 153

    from michigan

    Has anyone used one of these units that attaches to the nozzle of the power washer and siphons media up to blast?

    Z 2.jpg
  2. Fortunateson
    Joined: Apr 30, 2012
    Posts: 4,992


  3. pirate
    Joined: Jun 29, 2006
    Posts: 881

    from Alabama

    I also would like some first hand knowledge. Especially would be interested in baking soda blasting with pressure washer.
  4. alanp561
    Joined: Oct 1, 2017
    Posts: 3,434


    You might want to rethink this. Several years ago, when I was between jobs, I built a bunch of trailers and assembled the power units and pumps for a fellow who had most of the patents for commercial water blasting units. He had some units that he sold that were used for wet sand blasting but they were very expensive as the media ate up the pumps and guns pretty quickly. They worked great if you needed to blast in an area where you might have an explosion. I think you'd plug one of the small residential units up pretty easily and wear it out fast. Have you considered vapor blasting? If you're set on going this route, look up a local commercial water blaster and let them do it. It's much safer. The commercial units we built would throw a 3/16" stream of water at 8,000 PSI which would cut through a telephone pole in 8 seconds. We would do that to show new hires just how dangerous the machines were. Even the lower pressures of the small residential units are enough to cut your skin.
    SS327 likes this.

  5. indyjps
    Joined: Feb 21, 2007
    Posts: 5,349



    Think he's referring to these, siphon thru the nozzle. Agree running media thru the pump would be bad news.

    I've never used siphon feed sandblaster pressure washer attachment, but every siphon feed version of sand blast I've tried to use sucked.... uh, didnt suck? ... didn't work well
    alanp561, clem and SS327 like this.
  6. Mr48chev
    Joined: Dec 28, 2007
    Posts: 32,629


    I bought one last year but haven't tried it out. Works the same way as a siphone out off a bucket sandblaster works but your are using water pressure rather than air pressure.
  7. samurai mike
    Joined: Feb 24, 2009
    Posts: 543

    samurai mike

    used one twenty some years ago. metal will flash rust right away
    alanp561 and clem like this.
  8. indyjps
    Joined: Feb 21, 2007
    Posts: 5,349


    I'm interested to get feedback too - If these work for effective blasting. What version/ brand and any pointers.

    Flash rust, I'd be good with doing a panel at a time and scrubbing with phospho or panel prep.

    Prepping old panels is either a lot of work or a lot of money - if there's a better way, I'm game.
  9. overspray
    Joined: Jan 14, 2003
    Posts: 1,419


    I ordered one of the $32 ones off Amazon, like indyjps posted. It should be here next week, but right now it's 20 below zero so I won't be testing it real soon. I'll be selective in what I use it for, after I see how the metal looks.
  10. onetrickpony
    Joined: Sep 21, 2010
    Posts: 667

    from Texas

    I've got one. It works ok but the only advantage I see over an air siphen blaster is the reduced dust in the air. It still gets media everywhere.
    alanp561 likes this.
  11. corncobcoupe
    Joined: May 26, 2001
    Posts: 6,599

    Staff Member

    Do some research on using Dry Ice cleaning / blasting.
    Less invasive to pitting and warping.
    There are companies out there you can take your parts to or Mobile units come to you.
    Plus no mess to clean up after...... as it evaporates.
    alanp561 and Desoto291Hemi like this.
  12. goldmountain
    Joined: Jun 12, 2016
    Posts: 4,080


    I had my car blasted by a commercial outfit that used a wet media. Worked great and since this is an area with a very dry climate; no rust issues after. IMG_1234.JPG
    alanp561 likes this.
  13. lostone
    Joined: Oct 13, 2013
    Posts: 2,435

    from kansas

    I've looked at them but never pulled the trigger.

    Like to hear some first hand experience myself to see if it's worth buying.

    Main advantages I've seen are lack of dust and keeping the panel cool while doing it. Of course the downside is flash rust but I think it'd be easier to handle the flash rust vs the heavy rust.


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