Abrasive blasting - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 01-11-2014, 01:25 PM Thread Starter
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Lightbulb Abrasive blasting

Well I suppose with fabrication some kind of cleaning method is needed. For those of you that have media blasted, sand blasted, soda blasted etc I'd like to know what you know and what you've used on what materials and how it works.

I am using a cheap suction gun, ceramic nozzle, and a 0 to 160 psi air pressure regulator.

At first I was trying to clean cast aluminum turbo parts and had great success with 80 grit glass bead (harbor frieght) and about 130psi of air pressure. The aluminum compressor housings came out spotless.

Now I am wondering how I should go about cleaning some cast iron and mild stainless parts I have. I bought some black beauty coal slag 20/40 fine media but was not impressed with what it did. Tried it up to 120 psi and it hardly did anything for rust buildup. I did glass bead a turbine housing once before and it seemed to do the same or better as the black beauty. I was reading though that coal slag might not be good for cast iron.

Anyone have any input or experience media blasting?

-Matt

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post #2 of 4 Old 02-28-2014, 05:34 AM
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Star blast. Anything harder like cast iron or steel if its not thin like body panels use aluminium oxide. Its what grinding wheels are made of. Glass bead just shatters into dust too fast and isnt reusable. The aluminium oxide can easily make 20-30 times longer. Its very hard material.

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post #3 of 4 Old 02-28-2014, 06:17 AM
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Yup agreed with hucorey. Aluminium is my favourite for heavy rust, non-scilica sand is good to (and cheaper) but it doesn't bite as hard.

For aluminium and paint removal I prefer walnut shell, it does well against light rust too, but I find doesn't like being reused

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post #4 of 4 Old 03-29-2014, 03:35 PM Thread Starter
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Thanks! I haven't done any blasting for a while but I will give aluminum oxide a shot.

-Matt

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