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Old 11-10-2008, 12:58 PM
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Sandblasting coverage

I'm doing a frame off on a cj7. I have been experimenting with paing and rust removal and found that the best quickest way to strip is using a 20-gallon clarke pressure sandblaster. Only problem is a fifty pound glass bead container only covered about 9 square feet. At 20 bucks a container looks like I will need approximately 20 buckets; anyone have any idea on how to conserve/reuse sand or maybe use diffrent type of media. I would use black beauty but will not run through sandblaster. Any help thanks in advance.

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Old 11-10-2008, 01:08 PM
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This wiki article may help: Media blasting. Please add any additional information you come across to the article.

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Old 11-12-2008, 08:08 PM
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I just bought a 90# Clarke siphon sandblast kit. (Not sure how that relates to a 20 gallon) In any event, I wouldn't use the glass beads if it was me.
Here is what I did and it worked well and was very cheap. If I remember right those buckets of beads were about $35 a bucket... and like you said don't last very long.

What we did was lay down a heavy cloth tarp on the ground. I had a lean to building and we put it in that. It didn't have any sides so we put some tarps on the side so the sand would stay contained and fall onto the tarp as it was used. Here is a link with the pic of what we used to blast in...
You''' have to scan down and find the pic... this has a lot of pics of where I am building my truck included. What you are looking for will be near the bottom of the page,.. on the left.

We bought some sand from Tractor Supply Company. They sell several kinds (thicknesses) You need to try and get 40/80 to go threw the blaster the best. It is called (or made by) "Black Diamond" It has a nice bite to it, and cuts the paint / rust quite well.
What we did was fill the tank with the sand, and blast until it was empty. Then we'd stop and sweep up all the sand that was on the tarp, put it in a couple 5 gallon buckets. We have a screen from an old storm window we use as a screen to filter out any larger particles. We pour the sand right back into the hopper and go at it again. So far I've used the sand about 10 times and can't tell any difference from the first time I used it. I talked to a friend of mine who is using the same stuff with the same kit, and he has been using the same sand for several years, (blasting off and on)
You can also go to home depot and just buy regular play sand. Last word here is MAKE SURE you keep the sand inside and it gets no moisture in it. If it gets damp it won't feed right in a siphon kit.

One word of advice... no matter what you blast with.. make sure you wear a good quality respirator. That silica will get in your lungs and do some serious damage

Hope all this helps.
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