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Dustless metal blasting

Discussion in 'The Hokey Ass Message Board' started by Don's Hot Rods, Mar 24, 2013.

  1. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    Today on My Classic Car there was a segment on dustless blasting to remove paint and rust from metal. They said it uses ground up glass bottles and some special chemicals, and it takes about two hours to do the average car.

    Supposedly, there are benefits over soda blasting because they said there can be paint adhesion problems later on from that method. Has anyone here every had this done ? If so, how did you like it and how much does it typically cost ? I am going to try to find someone in this area who does it because we have a couple of cars that would benefit from doing it that way.

    Here is their website, if you click on the picture there is a short video.

    Don

    http://dustlessblastingblog.com/?tag=mmlj

    Here is even a more amazing video....

    http://dustlessblasting.com/

    They did this Fordor in less than 45 minutes.
     
    Last edited: Mar 24, 2013
  2. VoodooTwin
    Joined: Jul 13, 2011
    Posts: 3,453

    VoodooTwin
    Member
    from Noo Yawk

  3. fleet-master
    Joined: Sep 29, 2010
    Posts: 1,780

    fleet-master
    Member

    it looks interesting Don. That fordor was a good clean body with not much paint and no old bondo on it. I'd like to know how they stop flash rust,and do you need to key the surface for primer when your done?

    Its kinda dustless ...but still plenty of mess to clean up from what I can see. I don't think theres a stripping method that has NO negatives.
     
  4. willys_truck
    Joined: Mar 4, 2005
    Posts: 785

    willys_truck
    Member

    There is a liquid additive that goes in the mix, it keeps it from rusting.
     
  5. cmyhtrod
    Joined: Nov 29, 2008
    Posts: 360

    cmyhtrod
    Member
    from ct

    I had my service truck soda blasted a few years ago. The soda took the paint off great but not so good on the rust. I'm interested in seeing how the dustless or ground glass does on something in a similar condition
     
  6. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    Damn, I did a search and it came up with no matches.......sorry. :eek:

    I am going to try to find someone here in Florida who does it. Even if we have to drive a few hundred miles it will be worth it.

    Don
     
  7. We have a guy locally who wil blast on your site and preps for no rust for up to 3 days.
     
  8. afaulk
    Joined: Jul 20, 2011
    Posts: 1,194

    afaulk
    Member

    I ordered one of these mobile units last Friday. Supposed to pick it up in about 4 weeks. Will get my Alliance membership also and offer discounts to area HAMBers.
     
  9. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    I wish you were in Florida. :D Can you give us a rough idea of what someone will charge to do something like a model a body or a fat fender Ford body ? Do they charge an hourly rate or a per job rate ?


    Don
     
  10. CutawayAl
    Joined: Aug 3, 2009
    Posts: 2,144

    CutawayAl
    Member
    from MI

    A friend of mime looked into doing this as a business. The down sides I remember were fairly high cost for an adequate size unit, and the need for a large/expensive compressor.

    I wonder about the rersidue left by whatever the rust inhibiting additive is. Not likely that improves primer/paint adhesion.
     
  11. e-tek
    Joined: Dec 19, 2007
    Posts: 424

    e-tek
    Member
    from SK, Canada

    I've had a couple guys with one of these set-ups try to book time to show it to me. They just called again today and may bring it here later in the week. If they show I'll post it up.
     
  12. christopher 78
    Joined: Jun 24, 2012
    Posts: 136

    christopher 78
    Member

    not very good in the adhesion department!
     
  13. outlaw256
    Joined: Jun 26, 2008
    Posts: 2,022

    outlaw256
    Member

    hey neighbor, did you ever get your unit in,damn that sounds bad.lol anyway did ya! if you did and are doing business we need to talk....
     
  14. R Frederick
    Joined: Mar 30, 2009
    Posts: 2,658

    R Frederick
    Member
    from illinois

    A long time ago, a pressure washer was rented that would siphon sand into it. Essentially high pressure water with sand being blasted out for paint removal. I've always thought this system would be good to use around the house so the dust wouldn't ne a problem.

    I just found some info on some of the attachments.
    http://www.pressurewashersdirect.co...39-pressure-washer-sand-blasters-reviews.html

    Instructions:
    •Run the sand suction hose on top of the lance.
    •Under the lance allows sand to get wet; sand won't flow properly.
    •Strips of electrical tape can hold the hose in place.
    •Use the chart to size replacement nozzles- sold separately
     
  15. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    When I worked at marinas we had a sandblaster that did what R. Frederick describes, I think it was called a "slurry" blaster because it mixed sand and water. But I don't think this dustless system is exactly the same.........the water would rust the steel immediately. There has to be something different about the process.

    Don
     
  16. Scott's Rod & Custom
    Joined: Nov 30, 2009
    Posts: 17

    Scott's Rod & Custom
    Member

    Hey guys! I have a DB500 Mobile Dustless Blasting System and it works great. It uses recycled ground up bottle glass (cost $10/50lb bag) along with water and a chemical called Hold Tight that with inhibit rust for up to 72 hrs with no affect on paint adhesion. The process is faster that traditional dry blasting and because of the water, there is no heat buildup to cause warping. In addition you can also blast volitale items such as gas tanks, propane tanks, etc because there is no spark. The average full-size car takes about 2 hrs to do. Most Dustless Blasters charge around $300/hr. Thats only about $500-$700 for a car! I am in Southeast KS if anybody in the area needs blasting done or has questions.
     
  17. If you watch carefully, there's bondo on the pass rear quarter and this took it right off. Looks pretty slick and a lot less messy than sandblasting.

    Out of reach for a hobbyist though....
     
  18. afaulk
    Joined: Jul 20, 2011
    Posts: 1,194

    afaulk
    Member

    OK, just to stop the speculation about any problems associated with Wet Abrasive Blasting, aka, "Dustless Blasting". I received my new unit from a company in Canada several weeks ago, after being given the run around for 3 months by MMLJ, the Dustless Blasting guys in Texas. These blasters remove paint and old body filler like majic and can remove rust even from pits (takes a bit longer). After about 30 hrs of operation I haven't found a downside except that the dang hose is heavy. The rust inhibitor is a product made by Chlor Rid Corp. it washes away any chlorides (salts) that are found in any normally available water. These chlorides are what causes oxidation (rust) to start so quickly. This rust inhibitor leaves no residue to interfere with adhesion of coatings. It just leaves the metal really clean. As with any type of abrasive blasting you can expect to have some residue left in the nooks and crannies which can be blown out with an air hose after it dries. Also, this process uses much less blasting media than a sandblaster and the crushed glass doesn't give off free silica dust, (MSDS Data Sheet) so you can wear a dust mask instead of a respirator (much cooler).
     

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