sandblasting

Moondoggie · Mar 21, 2014

I intend to sand blast some wheels and cast iron parts outside. Do any of you build a containment system to retrieve the blast medium? I am thinking of putting up a tarp in an open end shape to keep the medium from blowing all over, with a tarp floor so I can recover it. Any suggestions would be appreciated.

dr sportster · Mar 21, 2014

exactly what you said and resift for old paint chips

Ken Crisman · Mar 21, 2014

I've done outside blasting quite a lot by using the same procedure you mention . But a problem I encountered a lot was dampness from the ground . Even tho I had cardboard & a tarp or sheet of plastic on the ground to catch the sand , it picked up dampness before I could get it all sifted & back into my blasting tub . So maybe when the sun is out & ground is warm , you may be ok . Post back how it works out for you . God bless , Ken

Moondoggie · Mar 21, 2014

Thanks. I think I'll build my tarp structure on the bed of a trailer, so the medium doesn't touch the ground and so it'll be easier to pick up on the base tarp and filter into a bucket. Is 1/4" hardware cloth small enough to use for a filter?

circus · Mar 21, 2014

Yea, but usually not worth the effort. Bare ground, gravel or grass heals from blasting. Concrete or blacktop is etched by blasting so in twenty years you'll still see a outline of the exhaust manifold in your driveway.

showcrop · Mar 21, 2014

I did something similar. I had a tarp down to catch a lot of it. I also cleaned it a little by pushing it slowly off a shovel in front of a box fan. The dust blew away. I then put it back in the hopper along with some new media. I had no moisture issues. probably because it was in the winter below freezing.

IH2444 · Mar 21, 2014

(quoted from post at 14:26:48 03/21/14) Thanks. I think I'll build my tarp structure on the bed of a trailer, so the medium doesn't touch the ground and so it'll be easier to pick up on the base tarp and filter into a bucket. Is 1/4" hardware cloth small enough to use for a filter?

And no 1/4 inch is not nearly fine enough to sift the sand with.
I use kinda large aluminum screen wire. It is actually screen from an old seed sifter for little seeds. Grass seeds I think.

redtom · Mar 21, 2014

I did that a lot. I had several sheets of used plywood and sort of propped up a stall type set up with a tarp on the ground. Caught a lot of it and reused it. The sand breaks down with use but working out side a lot of the "dust" drifts away. I live in the sticks so it doesn't matter if I dust a little. You need a fine screen to sift. I have two of those cheapo Sears siphon blasters that I just use the buckets from with the screens to sift it. You must have a fine enough mesh. After the 50th time you stop to clean your nozzle or hose you'll know why. BTDT

Anonymous-0 · Mar 22, 2014

Try and find a good mask or respirator, whenever I sandblast I can tell it in my lungs/breathing the next day. chris

sandblasting

Moondoggie

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dr sportster

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Ken Crisman

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Moondoggie

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circus

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showcrop

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IH2444

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redtom

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Anonymous-0

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