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Old 03-08-2009, 10:53 AM
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Sandblasting

I have a Clark 20 gallon pressure sand blaster. I have been trying to use it with BLACK BEAUTY media but it continues to plug up. The instructions say you need to use 80 grit media. The Clark brand media is about $30 per 50lbs. Has anyone else had similar issues? I am about to resort to play or construction grade sand to see if it will work.
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Old 03-08-2009, 11:18 AM
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I don't have an answer to your question, sorry. But I do have a serious warning to you if you are sandblasting sheetmetal. Yes, it can be done but it is a pretty steep learning curve that may result in some seriously damaged metal. If you plan on sandblasting sheetmetal get some good instructions from someone who knows before you proceed.

Brian
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Old 03-08-2009, 12:01 PM
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Quote:
Originally Posted by MARTINSR
I don't have an answer to your question, sorry. But I do have a serious warning to you if you are sandblasting sheetmetal. Yes, it can be done but it is a pretty steep learning curve that may result in some seriously damaged metal. If you plan on sandblasting sheetmetal get some good instructions from someone who knows before you proceed.

Brian

What he said X10! Play sand (any silica sand) will destroy sheet metal before you know it is happening, it even happens to pros, so if you go this route be careful!

Also if you use playsand use a good respirator and NEVER,EVER sandblast without it not even for a minute or two because that stuff can and will kill you! When silica sand is blasted from a sandblaster you will release free silica that will do serious harm each and every time you breathe it and it does not take much to destroy your health, it is not the same as dust blown by the wind and don't let anybody tell you it is!
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Old 03-08-2009, 12:18 PM
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As to the technical question..if you have any moisture in your airlines or media the blaster will clog on you get a good air/water separator on your lines and make sure the media is absolutely dry..

Sam
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Old 03-08-2009, 04:49 PM
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With these risk mentioned would it be more beneficial to just sand the car with a sander/grinder with a sandpaper wheel on it?

-Gearhead
Drive It Like Ya Stole It
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Old 03-08-2009, 05:17 PM
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What i do is to start with a 7" sander and get as much as I can with that..then go to a 4 1/2 inch sander then go to my airmotor with a 2" roloc..after that then just spot blasting the areas that are tough to get works fine and minimizes the mess and risk..I also use a product called vitro grit which is crushed glass and approved blast media which does not have free silica..

Sam
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