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Pressure Sandblasting Question

Discussion in 'The Garage' started by mikeperez22, Oct 10, 2004.

  1. mikeperez22

    mikeperez22 Registered Member

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    I'm getting ready to blast my frame to prepare it for paint. I'm looking into buying a pressure blaster, but I'm wondering if it will be worth it. The local shop charges about $50/hr to blast and I can buy a pressure blaster for just over $100. Does anyone know about how long it takes to blast an entire frame for a Blazer? I need to decide to either do it myself or pay someone. Any comments would be appreciated. Thanks.
     
  2. i8yrsuv

    i8yrsuv 1/2 ton status

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    If it was me ..pay someone... I have a large 400 lbs blaster ...and I have to rent a towable commpresser every time ..it sucks !!! You reall need atleast 20 cfm .... 30 cfm will work good !!!
     
  3. mikeperez22

    mikeperez22 Registered Member

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    I have a huge air compressor. So that won't be a problem. I just want to know how long it will take. Are we talking 2 hours, 3, 4, etc...
     
  4. seabass44

    seabass44 Registered Member

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    My Uncle has had his own commerical blasting buissness for 25+ years.
    here is the deal. You will end up using 10-20X the amount of sand with a small home unit.
    He can blasdt a frame with 1-2 100# bags in short time. His 1st frame with a little rink dink blaster back in the 70s took 20 + bags of sand!
    and trust me, your home compressor is not putting out enough to be efchint /forums/images/graemlins/confused.gif(bad spelling I know) enough. Best just pay to get it blasted. /forums/images/graemlins/waytogo.gif
     
  5. 84gmcjimmy

    84gmcjimmy 1 ton status

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    I'm doing mine with a sandblaster I got for 20 bucks /forums/images/graemlins/histerical.gif I just need sand, gloves, and a respirtor and im set /forums/images/graemlins/peace.gif
     
  6. JK5

    JK5 1/2 ton status GMOTM Winner

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    I have a pressure blaster and a 7 HP compressor...

    I just use it on stuff...that is hard to send out...

    My buddy Marvin has a 200 Hp compressor..
    and a pressure blaster that holds 1 cubic ton of sand..
    with a 1/2" orfice....

    With my blaster...it takes 3 times longer to blast.

    Most of the time...I find it cheaper..to just send it out!!!
     
  7. rubbinz raczn

    rubbinz raczn 1/2 ton status

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    mine took 6-8 hours it sucked! if you gotta pay someone 100 or 200 bucks and it is done. pay the man1 /forums/images/graemlins/yikes.gif
     
  8. gravdigr

    gravdigr 1/2 ton status

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    My setup (125cfm @ 100psi compressor and pressure blaster using crushed silica and 1/4" nozzle) Can do a bare frame in 1-2 hours depending on the preparation. If the frame comes to me with a thick coating of grease and funk it will take much longer so here's a tip. Before sending a part out to your sandblaster make sure it is clean. Wash any caked mud and grease off. I can cut blasting time and in so diong your cost down a lot. Now if your sandblaster is using industrial grade aluminum oxide and a 220psi blaster he will cut through anything on the frame and have it done in 45 mins give or take.
     

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