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what is the best sandblaster?

Discussion in 'The Hokey Ass Message Board' started by daves30, Oct 18, 2010.

  1. daves30
    Joined: Mar 7, 2007
    Posts: 211

    daves30
    Member
    from washington

    Ok so I broke my rule of buying no junk tools and bought a Harbor Freight sandblaster. It will not spray sand hard enough to even touch the paint on my axle. Who makes a decent sandblaster without spending a ton of money. I have gone through the troubleshooting guide and no improvements.
     
  2. gimpyshotrods
    Joined: May 20, 2009
    Posts: 20,272

    gimpyshotrods
    ALLIANCE MEMBER

    Which blaster model do you have? What is your line pressure? Do you have a water trap on the compressor? What abrasive are you using? Remembering to wear your respirator?
     
    AZbent likes this.
  3. daves30
    Joined: Mar 7, 2007
    Posts: 211

    daves30
    Member
    from washington

    I have 125psi at the unit, there is a water trap before the hose and a water trap on the blaster itself.
     
  4. bct
    Joined: Apr 4, 2005
    Posts: 3,105

    bct
    Member

    is the pot pressurized?
     

  5. Mattilac
    Joined: Oct 27, 2007
    Posts: 1,153

    Mattilac
    Member

    I have a Harbor Freight cabinet that works fine. I also use a Campbell-Hausfeld portable siphon-feed unit that is good for big stuff outside and works pretty well. It wasn't expensive.
     
  6. Morrisman
    Joined: Dec 9, 2003
    Posts: 1,602

    Morrisman
    Member
    from England

    Sand is rubbish for blasting. You need decent abrasive, like aluminium oxide, for thick heavy hard old paint. I tried plain sand in my cheapie blaster, and it was rubbish.
     
  7. gimpyshotrods
    Joined: May 20, 2009
    Posts: 20,272

    gimpyshotrods
    ALLIANCE MEMBER

    The right sand can work (and can kill you if you don't wear a good respirator).

    I have used 70-mesh with good results for rust an paint removal, through a HF pressure blaster. It is finer and more uniform than "play sand" or the cement sand you might find at the home and garden center. It is pretty cheap. It is used in casting metals and in pottery.
     
  8. flatford39
    Joined: Dec 3, 2006
    Posts: 2,800

    flatford39
    Member

    I use an HF 40# pressurized blaster and it works just fine. I use Starblast media as it is 95% silica free. It took a little while to dial it in but it's been working ok for me. I only bring 65 to 70#'s to the tank and the bottom sand valve is at 50% or less open. You must have one big compressor to run that thing at 125 inlet pressure. Now one thing I did notice is that areas that are full of oil need to be cleaned before I can blast effectively. Invest in a good hood and a better respirator. Moisture is your enemy. Make sure you have plenty of dry air.
     
  9. squirrel
    Joined: Sep 23, 2004
    Posts: 51,243

    squirrel
    Member

    Is the axle painted or powder coated?
     
  10. 440shawn
    Joined: Sep 25, 2009
    Posts: 1,716

    440shawn
    Member

    I have the HF cabinet unit works fine and I am very happy with it.
     
  11. slepe67
    Joined: Jan 22, 2008
    Posts: 1,146

    slepe67
    Member

    I have the HF blast cabinet also. Works great, when you have the vacuum hooked up to suck the dust out, otherwise you cant see anything (common sense). I do NOT recommend aluminum oxide for anything other than light, fragile work. Try Starlight or plastic media.

    I also have the Spot Blaster from Eastwood (?). Works OK for small items. Ive only used sand with this, not sure what other meduims will work with it.

    I ALSO use the cheapo blaster that SEARS sells. I only use this for sandblasting. You can buy the replacement tips any pretty much any Seas store. It works pretty good, just make sure you have a respirator (or, as I use, a chem mask)!

    I'm looking to build a big blasting system which will enable me to blast entire vehicles. Anybody got a rough idea?
     
  12. BigDogSS
    Joined: Jan 8, 2009
    Posts: 945

    BigDogSS
    Member
    from SoCal

    I have the BarrelBlaster --> It works GREAT!! I love these features:
    -- Made in the USA
    -- Does not leak
    -- Free, Live, English speaking tech support
    -- It comes preassembled

    These are the reasons I picked the BarrelBlaster over the Harbor Freight unit.
    http://www.barrelblaster.com/
     
  13. daves30
    Joined: Mar 7, 2007
    Posts: 211

    daves30
    Member
    from washington

    I'm doing the barrel blaster. Thanks for the input. I'm smart enough to use a respirator. And yes I have a hell of an air compressor.
     
  14. gimpyshotrods
    Joined: May 20, 2009
    Posts: 20,272

    gimpyshotrods
    ALLIANCE MEMBER

    We don't mean to harp on it, it is just really dangerous to go without, and many of us have seen it happen. You are more useful to us alive.;)
     
  15. cozee
    Joined: Aug 19, 2010
    Posts: 111

    cozee
    Member

    To answer the title, "The best sandblaster is the one I don't have to run!!!!!"
     
    Hollywood-East likes this.
  16. Dale Fairfax
    Joined: Jan 10, 2006
    Posts: 2,585

    Dale Fairfax
    Member Emeritus

    And what is a "hell of an air compressor"? How many C.F.M. is that? If you're not pumping 15 C.F.M. at that pressure, it ain't the fault of the blaster. The right volume, pressure, and media is required. Miss any one of the three and you'll be unhappy.
     
  17. Von Rigg Fink
    Joined: Jun 11, 2007
    Posts: 13,426

    Von Rigg Fink
    Member
    from Garage

    Sandblasters are relitively simple equipment
    you have siphon feed
    and pressure pot feed

    check to see if your nozzle is plugged..maybe the media your using is caking up or too large for your nozzle

    dont use "sand" buy media designed for blasting..it wont pick up moisture and plug up your gun

    also take apart the gun and see that there isnt an obstuction in the feed or nozzle..tiny chunk of shit can screw things up.

    than if its siphon feed make sure the siphon hose isnt kinked or junked up and down in the media
    if its a pressure pot make sure its clean and the "drop out" is clean (where the sand goes past the lower valve)

    adiquate pressure is a must..but volume is just as important..

    hope you find your issue..it shouldnt be too hard to get it running right

    and Dale is a fast typer:D
     
  18. Black Primer
    Joined: Oct 1, 2007
    Posts: 966

    Black Primer
    Member

    Squirrel is right, if its powdercoated it will be tough to blast with any small blaster.
     
  19. FrozenMerc
    Joined: Sep 4, 2009
    Posts: 2,828

    FrozenMerc
    Member

    I have a Maxus 80 lb pressure pot. I bought it online from Air Compressors Direct. It does everything I want just fine. The media makes a BIG difference. DO NOT use playground sand or Silca Sand. Most Menards, Lowe's, Tractor Supply, etc carry a Black Diamond or similar brand (crushed coal slag) sand blasting media for around $4 to $6 per 50 lbs. This is a much better, safer (silca free) product, and it is cheap enough to be disposable. Trust me, don't be cheap and spend your money on a quality air compressor and blaster. Not having enough air (cfm) is the biggest problem most people encounter.

    Good Luck and have fun.

    [​IMG]

    http://www.aircompressorsdirect.com/Maxus-MXS21002/p555.html
     
  20. pincher
    Joined: Sep 12, 2007
    Posts: 378

    pincher
    Member
    from Saginaw

    The best sandblaster is the one you pay to blast you'r stuff. I have found it is not worth messing with.Just my 2cents.........PINCHER
     
  21. FrozenMerc
    Joined: Sep 4, 2009
    Posts: 2,828

    FrozenMerc
    Member

    Hard to argue with the guys that say hire it out. It is nasty, noisy, dirty business if your are doing anything larger than what can be fit inside a cabinet. After doing a number of frames and bodies myself, I have to agree that there is a ton of logic in hiring it out and supporting your local economy.
     
  22. ntxcustoms
    Joined: Nov 10, 2005
    Posts: 910

    ntxcustoms
    Member
    from dfw

    Coal slag has arsenic and other traces of heavy metals, also remember that silica is only part of the problem...you don't want to breath the lead, zinc, mercury, etc...in questionable old paints.
     
    Hudson31 likes this.
  23. Make sure your air compressor is up to the task. I bought the red pot sand blaster from Harbor Freight and tried to use it with my 5 horse - 30 gallon craftsman air compressor. It worked, but not all that well. Same blaster on a friends big compressor worked very well. It's all in the compressor.
     
  24. jrsiron
    Joined: Sep 10, 2006
    Posts: 120

    jrsiron
    Member

    The guy that comes to my shop and blasts for $75 per hour
     
  25. Customs&Color
    Joined: Jan 16, 2009
    Posts: 105

    Customs&Color
    Member

    I have to agree with the guys that say to hire it out, it makes too much sense not too. The place I use has 2 big blast rooms that look like big paint booths and a lot of other professional equipment that gives a lot more professional results than anything I could do myself, not to mention the huge mess you have when trying to blast out in the open.
     
    Hudson31 likes this.
  26. Kan Kustom
    Joined: Jul 20, 2009
    Posts: 2,703

    Kan Kustom
    Member

    Just my experience but I would have to go with the old saying,If you want it done right,do it your self. I have tried several different sandblasters for hire and never expected to get perfect results but I can honestly say that I NEVER got what I felt was even close to satisfactory results.Most of the time I got pieces back that were lucky to have a little over half of the surface hit by the blaster and the guy stands there with his hand out and a smile like he is so proud to have taken your money for nothing.I would love to find someone that would do even a half way good job even if I had to touch it up myself to my expectations but It has never happened for me.I hate to be negative but this has always been a sore spot wiyh me.
     
  27. Using a harbor freight pressurized pot system with no issues. 60 lb unit using #30 sand, at 80 psi. Play with your valves, once you get it all right, should work fine. Any moisture in the sand will give me problems.
     
  28. Diablonation
    Joined: Dec 8, 2017
    Posts: 1

    Diablonation

    We have a Raptor Blaster RB5446 blast cabinet at our shop. Made in the USA, not cheap imported stuff. Works great, and doesn't leak blast media. I recommend plastic media or starlight for paint stripping. Alox is good for getting an angular profile on your painting surface. Plastic is best if you just need to strip paint.
     
    AZbent likes this.
  29. 49clubcoupe
    Joined: Nov 5, 2013
    Posts: 88

    49clubcoupe
    Member
    from idaho

    I have seen friends ruin small compressors (5hp 60g) trying to media blast large objects. Make sure to check the duty cycle on your compressor. It may have enough cfm to get the job done but not for hours on end.

    Sent from my VS835 using Tapatalk
     
    osage orange likes this.
  30. 1946caddy
    Joined: Dec 18, 2013
    Posts: 1,781

    1946caddy
    Member
    from washington

    My son has a HF pressurized blaster and in the beginning it didn't work for shit. Took apart the mixing valve at the bottom and there was teflon tape stretched across half of the opening. Also found out the sand at Home Depot didn't work hardly at all but switched to the finest grain sand from a masonry supply store and it works great. I always turn the air valve on full and then open the supply valve at the bottom to adjust sand flow. usually 1/3 to 1/2 open. Turn off the sand flow at the bottom before turning off the air and run air threw the hose until sand stops or the sand will get packed into the bottom supply valve. We ungraded to the deadman valve as the supplied ball valve at the tip would start to leak after you turned it off once because the sand would score the ball.
     

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