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Tool Talk Discussion Forum

sandblasting gas tank

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Dub

11-16-2004 13:15:42




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I'm restoring a Farmall B and am messing with the gas tank. The inside is fine but it has rust on the outside that needas taken off. When I smell the inside of the tank i can't smell gas, but I'm still wanting some backup. If I can't smell fumes there shouldnt be enough to explode in the sandblaster is there? I have heard of filling the tank with water, but I have a blasting cabnet and dont want the sand to get wet. So I guess im asking if putting rags in all the holes would be safe enough? Don't worry, I wont hold anyone liable.

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Mike M

11-17-2004 05:24:58




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 Re: sandblasting gas tank in reply to Dub, 11-16-2004 13:15:42  
I have sandblasted many tanks,but outside (doubt it makes a differance) and had the openings plugged. Some but not many were pressure washed inside and out first.



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Keith-OR

11-16-2004 21:50:51




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 Re: sandblasting gas tank in reply to Dub, 11-16-2004 13:15:42  
just go to the following website click on restoration tips. use info to build tank. I have been using this method for 8 or 9 monthes now. Works great on removing rust and paint.
HTH....Keith



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Ryan-WI

11-16-2004 18:58:24




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 Re: sandblasting gas tank in reply to Dub, 11-16-2004 13:15:42  
Just skip the sandblaster and throw it in an electrolysis tank. no problems.



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Ryan-WI

11-16-2004 18:58:23




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 Re: sandblasting gas tank in reply to Dub, 11-16-2004 13:15:42  
Just skip the sandblaster and throw it in an electrolysis tank. no problems.



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Rustbucket

11-16-2004 18:08:42




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 Re: sandblasting gas tank in reply to Dub, 11-16-2004 13:15:42  
Perhaps filling the tank with nitrogen from your wire feed welder then sealing it would be effective? Anybody ever tried it?



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Andy2

11-16-2004 17:08:34




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 Re: sandblasting gas tank in reply to Dub, 11-16-2004 13:15:42  
You may consider grounding it to the earth by driving a copper rod on the ground and connecting with jumper cables.



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JHesler

11-16-2004 17:51:12




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 Re: sandblasting gas tank in reply to Andy2, 11-16-2004 17:08:34  
That might not help. If the sparks are from static electricity built up in the system, grounding will only give them a better path to arc. If they're from friction of media hitting workpiece, it wouldn't help either.



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Ricardo Lizarribar

05-06-2005 07:44:12




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 Re: sandblasting gas tank in reply to JHesler, 11-16-2004 17:51:12  
What if the hose used for sandblasting is not grounded and the static electricity is produced in the hose... will it ignite, say, fumes from a gas tank that is being blasted? Where could I find more information on that. I have heard of it happening and wanted to learn more. All the sandblasting hazards that I can find concer silica exposure.



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JHesler

11-16-2004 15:31:47




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 Re: sandblasting gas tank in reply to Dub, 11-16-2004 13:15:42  
Interesting post. I just sandblasted a saddle tank from my truck. Did it outside with silica sand because it wouldn't fit in the blast cabinet. I didn't think about the possibilities of explosion. I didn't take any care to clean fumes out of the tank but all holes were securely plugged. Guess I was lucky. Ever see that plasma of fine sparks that fly off the workpiece when the media hits it in a blast cabinet? I'd recommend being real careful to get all the fumes out.

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John *.?-!.* cub owner

11-16-2004 18:50:13




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 Re: sandblasting gas tank in reply to JHesler, 11-16-2004 15:31:47  
or fill it with water.



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Ol Chief

11-16-2004 19:44:11




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 Re: sandblasting gas tank in reply to John *.?-!.* cub owner, 11-16-2004 18:50:13  
If you have a source of co2 you can innert your tank easily. Fill the tank with the co2 until CO2 vapor escapes then replace the cap and seal the vent hole on the cap.Local fire dept. or industrial gas distributer can probably help you.If that fails put some dry ice in the tank.Shipyards do welding repairs on fuel tanks on a daily basis after using CO 2 inside.If you pick up any moisture,add some Drygas or alcohol before using the tank.

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