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Pressure washer sandblasters?

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Scratch View Drop Down
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    Posted: 07 Oct. 2021 at 7:44pm
Does anyone have any experience with the pressure washer sandblasters?  I've been seeing them lately and not sure how good they work.  I have one of these pressure blasters, and it works all right, but it seems to clog up easily and it seems I'm constantly fiddling with the valves.  I was wondering if the pressure blasters work as good or better than what I have.  I've seen a few videos and they seem to be pretty nice.  I don't really like the fact that there's water all over the bare steel when you're done, but maybe that's not as big of a deal as I think.  

I already have a big gas pressure washer and if it's way better than dry sandblasting, I might consider it.  I sandblast outside in the dirt so I don't really care about it being dustless, I would care if I wouldn't have to worry about it clogging up from moisture.

What are your thoughts?

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Edited by Scratch - 07 Oct. 2021 at 7:49pm
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DesertDog48 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DesertDog48 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct. 2021 at 11:57pm
My buddy got the pressure washer setup recently and loves it. Said it's works great. He. Let's the Sand dry out for a couple days. Screens it and reuses it. Don't think it was very expensive either. You just stick the tube in a bucket of sand and start blasting!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 48willys Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct. 2021 at 10:45am
I’ve got one of their older models. It works well when it works, but I have a lot of trouble with the sand feed clogging. It could be operator error though.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Oldpappy Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct. 2021 at 5:26pm
A good water trap / filter on your air line helps a lot with the clogging.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pope891 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Oct. 2021 at 4:19pm
I am in the industrial coatings business.  So I know a little something about abrasive blasting.  Here you go:

Water + abrasive = mud.

Water + freshly blasted steel = rust

Wet abrasive blasting is very slow production.  Your working area is about the size of a marble, as opposed to a golf ball or larger using bigger blasting nozzles.  The trick with wet abrasive blasting is adding a product to the water like Hold Tight to "hold the blast" and allow the steel to dry out before it flash rusts.  But here's the catch; now your steel is covered in mud.  How do you get mud off?  

We could debate this fact for hours, but the majority of industrial painters use dry abrasive blasting for a reason....it's efficient.  

Consider renting a whole blasting set up from your local equipment rental place.  It cost me about $1,000 to rent a 185CFM compressor, hoses, air dryer, 100lb pressure pot and pressurized blasting helmut/hood.  I used recycled glass media to reduce the heat created by blasting on sheet metal.  Oh yeah, and warn your neighbors before you open up that blast nozzle Big smile
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