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DIY Home Built Vapor Blasting/ Honing Cabinet , wetblasting


duffymahoney

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Got tired of waiting for it to warm up and just filled the hopper from a 5 gal. bucket, I also added the air line and it is absolutely needed. Glass beads are a lot smaller than I thought, same consistency as fine sugar. Most of the blasting was done with 60psi air, approx 8 gal water and 500 ml of glass beads, each piece was given about a minute of blasting time.

The jack stand is about 50yrs old, the header is stainless steel and has been in use for 17yrs, the plum bob is very hard old brass, I thought it would clean up much better than it did, the last is rusty common steel. I also did some galvanized fittings and the blasting did nothing to the zinc, but it removes anodizing from aluminum in a flash.

 

 

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I'm preparing to enter the ring but with a twist: power washer rather than air compressor to wet blast with glass. 

It should be possible to recycle the water and filter it to keep any glass out of the high pressure pump however I will start with fresh water when the outside temps warm up.  If the high pressure with my Honda gas powered washer works then I'll try a lower powered electric washer.

 

https://www.princessauto.com/en/detail/pressure-washer-abrasive-blasting-kit/A-p8067399e

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2 hours ago, Patcon said:

If you're gonna insist on using that thing in the snow you are gonna need to add a heater... :P

Funny you should mention that, I guess the metal I was blasting was colder than the air temp because every piece I pulled out of the cabinet had a thin layer of ice on it.

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11 hours ago, grannyknot said:

Funny you should mention that, I guess the metal I was blasting was colder than the air temp because every piece I pulled out of the cabinet had a thin layer of ice on it.

Venturi effect...

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5 minutes ago, Captain Obvious said:

Nice work on the cabinet! So do you think the results are different than straight up glass bead blasting?

Totally different. Vapor won’t even remove zinc. 

It just picks dirt out of the surface. I am using much more fine glass though. 

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7 hours ago, duffymahoney said:

I am using much more fine glass though. 

What size grit are you using? I think my is 50-80 grit.

6 hours ago, siteunseen said:

I understand how those gastric "lap bands" work now.  That ring has never been off and would not even if you tried.  Congratulations! :)

Been on there for 34 yrs, it use to have a braided rope design on both edges, wore off decades ago. My wife says " It makes me feel claustrophobic just looking at you finger" I say "No honey, that's just me that makes you feel like that way":Bazinga:

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  • 4 months later...

GREAT Build!

I've been searching the internet for someone that has actually build a quality unit that works so i'd like to thank you {Duffymahoney} for all that you have done for my project. I may have missed it but I am wondering where you bought your "blast" gun?

 

Thanks again

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1 minute ago, Worx10r said:

So will any nozzle work or does it need to be a wet nozzle?

 

Thank you, please let us know if you come up with a better nozzle. 

I will probably continue to use mine.  I honestly don't know what nozzle would be the best.  Vapor honing technology uses a chinese one you can find on alibaba.  

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Well I killed my first slurry pump.  It was a 70$ amazon one that is no longer available.  This one looks indentical and has the same stats but I like how easy it is to take apart, I will try to take better care of it and flush it after every use.  I had about 20 hours on the first one.  Also I have 3 nikki fuel pumps to blast and a FET triple intake.  Should be fun! 

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1 hour ago, 240260280 said:

I was thinking that a sewage pump would be more robust

The glass beads aren't that heavy but once they are stationary they don't get moving easily without some agitation, I think the sewage pump would have a hard time lifting them up. I'm using the hopper design the same as Duffy with the glass beads above the pump and I still have to blast the nozzle down into the pile of beads to get them mixed up so they can be sucked down to the pump.

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5 minutes ago, Patcon said:

"Giant Overkill" is good! LOL sort of like reaching for a bigger hammer...

Did you look through the link I posted earlier?

There are tons of websites for blasting stuff.  Very little actually has to do with vapor/ water honing or whatever people call it.  I got lucky and the vapor honing guy gave me some secrets.  That's why mine works so well.  Next best thing would be some sort of slurry pre mix machine.  You could go nicer on the pump, but all pumps wear out.  Something that could be rebuilt would be nice.  The reason I picked this pump, is because it's easier to pull apart then my last one.  

 

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Just now, duffymahoney said:

There are tons of websites for blasting stuff.  Very little actually has to do with vapor/ water honing or whatever people call it.  I got lucky and the vapor honing guy gave me some secrets.  That's why mine works so well.  Next best thing would be some sort of slurry pre mix machine.  You could go nicer on the pump, but all pumps wear out.  Something that could be rebuilt would be nice.  The reason I picked this pump, is because it's easier to pull apart then my last one.  

 

Yeah, I thought a rebuildable pump would be nice. Also a mechanical agitator in the slurry to keep the beads from settling would be nice too. I may have to build one some day

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  • 4 weeks later...

Well ruined another pump, I need to find something better.  Some small that is high pressure and can take the tiny particles on a shaft.  I believe they are my issue . 

 

I got this Sk intake looking pretty before the pump started to leak:( It looked pretty nice before, so it cleaned easily.  

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