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Offline russosborne

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Sandblasting media question
« on: November 10, 2014, 09:27:27 PM »
For removing rust/paint is sand or glass bead better?
I mistakenly bought 80 grit glass bead and tried it out today. It works, but I was hoping it would go faster. Would 80 grit sand be faster? I know that is the grit that Tractor Supply carries for both. Or do I need to find like 40 grit?
I am using a cheap HF hopper type blast kit($35), which I know isn't the best, but it is what I have to deal with.
Thanks,
Russ
In Glendale, Arizona

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Offline 74 PintoWagon

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Re: Sandblasting media question
« Reply #1 on: November 10, 2014, 10:20:31 PM »
Gotta be careful with sand on panels, it can get hot and warp the sheet metal, also have to make sure no moisture is in the air or sand gets wet and won't work, I had one of those cheapo HB deals it worked good, no problems until moisture got in then it was all over..
Art
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Offline 76hotrodpinto

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Re: Sandblasting media question
« Reply #2 on: November 10, 2014, 10:54:54 PM »
Soda blasting. For car restoration, I use nothing else.
1976 half hatch 2.3 turbo w/t5.

Offline 74 PintoWagon

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Re: Sandblasting media question
« Reply #3 on: November 11, 2014, 06:25:50 AM »
Soda blasting. For car restoration.
DITTO....
Art
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Offline russosborne

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Re: Sandblasting media question
« Reply #4 on: November 11, 2014, 01:32:37 PM »
Thanks.
I suppose I forgot to mention I am talking about leaf springs, so warpage is not an issue.
Russ
In Glendale, Arizona

RIP Casey, Mallory, Abby, and Sadie. We miss you.

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Offline 74 PintoWagon

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Re: Sandblasting media question
« Reply #5 on: November 11, 2014, 08:57:39 PM »
Sand will work fine for that, just keep the moisture out..
Art
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Offline 76hotrodpinto

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Re: Sandblasting media question
« Reply #6 on: November 11, 2014, 09:24:06 PM »
If you use a gravity feed unit, there can be an issue a lot of people overlook. There is usually supposed to be an elbow at the bottom of the media hopper, and it is supposed to have a hole in it. If the piece is not there, or the hole clogged, it may limp along pushing out a small amounts of media, but not near enough. Not all have them, but most.
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Offline 74 PintoWagon

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Re: Sandblasting media question
« Reply #7 on: November 11, 2014, 09:26:27 PM »
Good to know..
Art
65 Falcon 2DR 200 IL6 with C4.

Offline amc49

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Re: Sandblasting media question
« Reply #8 on: November 12, 2014, 12:40:46 AM »
I built my own bigger fully enclosed box from a $125 special....... ...I installed a second smaller pressure line that ends right at the entry point for media into the gun supply hose, it has a small valve to be able to cut completely off or just a small amount of air to move the sand or whatever around, when moving it feeds far more constantly than just by gravity trying to fill a hole under the surface of the media. Same idea as the hole mentioned, or a vent to stir up slightly to keep media loose and moving right at the hose entrance. Media weight can make the media start and stop irregularly as it tries to clump up from particle friction even if dry.