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Antique Tractor Paint and Bodywork

sandblasting

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hivoltage98

07-02-2005 07:42:30

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I just purchased a 20lb. sandblaster to clean my panels on my ford 650 and I think I need some tips on the technique. First of all for some reason I'm having a hard time is locating actual sandblasting sand so im using play sand and screening it before i load it up. But it seems my compressor just doesnt keep up with the demand of air I need for the process. Second I'm not quite sure which tip to use for the play sand. Third is what pressure should i run at to keep the compressor happy and me happy? It just seems like a slow tedious process. any tips?
Thanks in advance

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skycarp

07-05-2005 21:27:42

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Re: sandblasting in reply to hivoltage98, 07-02-2005 07:42:30

Sorry for the multi-post. I can't blame it on anybody/anything but myself.

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skycarp

07-05-2005 21:25:38

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Re: sandblasting in reply to hivoltage98, 07-02-2005 07:42:30

I never tried it with air, but I have hooked two water pumps up in parallel and got twice the volumn of water. How about getting another like size compressor and linking them up via a T-
manifold. I would think a couple of one way valves on each supply line would keep the higher worker from feeding back into the less worker. See if this increases your volumn.

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skycarp

07-05-2005 21:25:16

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Re: sandblasting in reply to hivoltage98, 07-02-2005 07:42:30

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skycarp

07-05-2005 21:24:53

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Re: sandblasting in reply to hivoltage98, 07-02-2005 07:42:30

I never tried it with air, but I have hooked tow water pumps up in parallel and got twice the volumn of water. How about getting another like size compressor and linking them up via a T-
manifold. I would think a couple of one way valves on each supply line would keep the higher worker from feeding back into the less worker. See if this increases your volumn.

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skycarp

07-05-2005 21:24:41

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Re: sandblasting in reply to hivoltage98, 07-02-2005 07:42:30

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HOOKER

07-03-2005 09:53:49

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Re: sandblasting in reply to hivoltage98, 07-02-2005 07:42:30

if it looks like this, i run mine at 120psi and i use a 9/64" tip but i also use ultra-fine masonry sand from our sand supplier
jake

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HOOKER

07-03-2005 09:52:37

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Re: sandblasting in reply to hivoltage98, 07-02-2005 07:42:30

if it looks like this, i run mine at 120psi and i use a 9/64" tip but i also use ultra-fine masonry sand from our sand supplier
jake

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HOOKER

07-03-2005 10:03:59

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Re: sandblasting in reply to HOOKER, 07-03-2005 09:52:37

this is my toy blaster, 2" feedline,
1-1/2"workline,1/2" tip size,
50hp screw comp., 1000lb sand tank
17 ton hopper, if ya drop the gun its too late, ya a gone'r
jake

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CNKS

07-02-2005 11:35:47

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Re: sandblasting in reply to hivoltage98, 07-02-2005 07:42:30

Go to a lumber yard/home center and buy fine sand, they don't need to know it is for sandblasting. Many companies don't list it as sandblasting sand because of silicosis. For this reason, the bag may even say "Not for sandblasting". I use a supplied air unit so I don't have to worry about it. You will probably still have to screen the sand, since your blaster uses a small tip. Your sandblaster should state the maximum pressure, usually 80-100 psi. The correct tip size is one that will allow your compressor to maintain 80-100 psi, if it drops you will have to wait until it catches up. Most non-commercial compressors don't have a 100% duty cycle, so you also need to wait for the compressor to cool off. It takes a minimum 15 cfm of air at 100 psi to make much progress, otherwise you just have to wait for the compressor to catch up.

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