How to make a vapor blaster gun/nozzle
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- เผยแพร่เมื่อ 9 ก.พ. 2025
- This video is a quick break down on how I made my own vapor blaster gun.
Please excuse the flickering. I have fluorescent lights in my workshop, and I am not yet to the point where I can justify setting up better lighting.
For anyone who wants to make their own and has questions, leave me a message in the comments and I will do what I can to help out. There are no dimensions in this build as this is a demonstration of what worked for me. This is likely not the only way of doing it so give it a go and if you have trouble getting it to work, leave a comment and I may be able to help.
/ aelnewzealand
My e-book is now available for sale. It combines much of the info in these videos into an easy to read PDF, and includes diagrams and illustrations to improve reader understanding.
If you are interested in the book, please head on over to armoury-enterp...
Justin is doing really well. I heard from him the other day and he has his own shop near Pismo beach.
Thanks for explaining the principals involved in creating pressure inside the plumbing piece. I really do need a lathe, but maybe the same result can be achieved using small diameter alloy tubing and some imagination for reducing the end to meet the novel tip..... I have subscribed. And i appreciate how you give kudos to others on youtube that have inspired you. Kudos to you my man!
Thanks Mark!
Sorry I missed this comment somehow. I had a picture emailed to me from another subscriber that had an image of one similar to mine that was made without a lathe. If I can find it I will post it up.
heya mate love the videos, just wondering if you'd consider making a nozzle that i could buy ??? im Auckland based and currently looking into making a basic setup for some home diy, cheers!
Hey mate,
Flick me an email at josh@armouryenterprises.com.
I have a number of different nozzle options available.
Cheers
Josh
Nice Job. can you connect that to the pressure washer and do wet blasting? Is that what vapor blasting is wet blasting?
Yes, but it would require modification to fit it to the water blaster and change the air jet to a much finer jet for the water blaster.
They are different processes, the water blaster units use the suction to draw in dry media.
Dustless blasting is usually used to refer to a sandblasting unit with a water injection nozzle.
Vapour blasting is a pre mixed slurry that is fed into a nozzle and accelerated with compressed air.
Wet blasting can be used to refer to all 3 methods.
Purchased all three of your ebooks and have attempted to make this vapor blaster gun/nozzle. Unfortunately the part descriptions are not great and resulted in a bunch of stuff that I purchased that doesn't fit together. It would be really nice if you created an itemized list with links to products on Amazon or Ebay to avoid getting the wrong items. Otherwise great stuff!
Hello again... I have a few questions. What grit (glass beads) do you use when you blast aluminum? And what water and media ratio is required for best results?
I'm going to try running it on solar and off grid. I just posted a boring update video. There has been a lot of changes to the machine since I've been using it so much. Great video I am curious if a homemade nozzle is better. I haven't tried it yet
Hey Justin,
In my opinion, the 7mm pink ceramic nozzle is a little limiting. Works really well but is quite slow. The larger nozzle is much better in a full size setup, but if I was running one in my home shop with a smaller compressor, I would definitely go with the smaller homemade one.
It makes sense . We need more volume to get the job done faster. It cost money to run that larger pump that I'm using
For smaller jobs, I think you could probably get away with a 12v submersible pump and one of my nozzles.
I am going to set one up to go in my work van.
What is the distance from the center pin to the back of the nozzle? Great video. This will be my next project.👍👍
About 4-6mm depending on the desired slurry flow and nozzle size. 4mm for 7mm or smaller. 5 or 6mm for 8 to 10mm nozzle.
Thanks for watching!
Thank you Sr. for post these videos...I´m restoring motorcycle parts and I´m willing to build one "zero cost" vapor blaster. I have a small lathe to machining things and skills to build one from scrap. Of course, as long I´m living in Brazil, I´m on the budget. My question for your Sr: I can have a reasonable result using a 10CFM compressor, which can deliver about 135 psi pressure and 100 liters reservoir? I could use "venturi effect" advantage on the nozzle to improve the results? Thank you very much!
Hi Fabio,
Yes you can get a usable system with a 10cfm compressor. There is a little work in setting up the nozzle. You need to balance the size of air inlet nozzle size and gap between the air inlet nozzle and the ceramic tip. Start with a 2mm air inlet diameter and make it larger until it works for you. Usually 2mm will be fine for that size compressor.
Remember though, although you can make it work, it will be a lot slower to get the finish you want
@@ArmouryEnterprises Thank you very much.
could you please explain what you are saying at 3:00, you are explaining what the material is you machined the nozzle from, it sounds like elway!
Hi.
It's a piece of alloy round bar. I used it because I had some off cuts to use and it's easy to machine. Harder materials will probably do a better job at resisting abrasion but I used this because I was making lots of them to get the flow rate right for my set up and it is quicker to machine.
Thanks
@@ArmouryEnterprises Thanks for that, Cheers.
Could.you add a photo of the inside parts of the gun please?
Any info on the air needle? What's the diameter of the hole? Is that a fabricated part or can It be bought and modified? The only part I'm not able to make as I don't have the equipment.
A die grinder trims out the brass fitting without a lathe or pillar drill. Stone or carbide cutter make short work of it.
It is fabricated from a piece of 3/8 aluminium round stock. A lathe makes it easy, but I have done them with a hand drill too.
Look into a strainer brand Wilkins. Straight thru design
Hi Gerry,
Yes I have seen the Wilkins type. They look like a good base for this build but so far, the prices I have seen are well above other models.
Thanks for watching!
Great Video!! Thanks. Can you give us another video on how you make the "air needle"? Appreciate!!
Hi Paul,
Hoping to get a build video together with more information on this type of nozzle shortly. Just got a heap on my plate at the moment with work and a couple of other projects so unfortunately the videos are a little way down the priorities list at the moment.
Thanks for watching!
www.fastenright.com/general-fixings/vented-socket-button-screws something like this might help though without a pillar drill or lathe.
Hello again... Curious, what's the sized hole for ceramic tip ? I noticed the opening diameter on this video is much larger opening then the original ceramic tip.
Hi Rob.
I use the largest diameter supplied which is 7mm
Excellent thanks
what is the name if the ceramic tip, is it used in tig welding
It is just a sand blasting ceramic tip.
can i connect this to a pressure washer, will that work?
As far as I am aware, no one yet has been able to make this type of system that recirculates media to work properly.
Very informative, thank you.
I have another question about the vapor blasting gun you made... approximately what's the measurement (distance) between the ceramic nozzle and the end of the air nozzle inside the gun? And what's the opening size for the air nozzle?
Hi Rob.
Distance between the air nozzle and ceramic tip is 6-8mm.
The size of the jet in the air nozzle is 2.5mm at the time of the video, but I have since bored it out to 3mm. This should depend on the size of compressor you plan to run.
Hello... I'm using a 3.5 HP with a 20 gal tank... Thoughts on my compressor... Will it work???
Hi Rob,
That should work ok depending on the CFM rate. But it sounds like a larger compressor than mine. I would suggest a 2.5mm air jet. If it's too slow you can always drill it out to 3mm or larger if it is too slow for your liking
Thanks for the info...I'll first try the 2.5 air nozzle first... See if that will work. Are you still planning to do another nozzle video?
Where can I get a gun blasting material like yours, I will try to get it myself. please enlighten me thank you
Hi Budi,
Where abouts are you based? I can't really give much information for sourcing materials outside of New Zealand as I am not familiar with suppliers in other Countries.
I am in the country of Indonesia I have been browsing many times in the online store but did not get results. if possible, know what ingredients to make such tools
@@BlastCoating
I don't know of any of the suppliers in Indonesia sorry. The language barrier makes it difficult for me to help you search too.
If you watch my video on the "Worlds Cheapest Vapor Blaster - Zero Dollar Build" It may give you an idea on the sorts of materials you can use. I did that video to show that with a bit of effort, you could build one pretty much anywhere in the world.
thank you so much you have taken the time to answer my question, even though it has not produced results at least you have tried as much as possible. thank you for your kindness, always success
I like what you are trying to do, and applaud you for it. I had a thought of using the slurry under around 50 psi and then injecting air as the slurry is now. This would aireate the slurry and maybe cancel the need for compressed air. What do you think? Have you ever tried it? It is cold here in the mid USA and my shop is not heated so it will be spring time before I can try it. Give you something to think about. Thanks for the videos; I just subscribed, keep up the good work!
Thanks for the subscribe Frank,
I had tried something similar with a pressure washer that drew air into the nozzle just before the ceramic nozzle. What I found was that it yielded a fairly substandard result. I put it down to the fact that the increase of water and decrease in volume of air meant that there is no elasticity in the pressurised water resulting in the incoming slurry absorbing some of the energy and decreasing nozzle velocity.
That being said, I am no physicist and gave up pretty quickly. This is not to say that it will not work. Definitely give it a try because there are plenty of things I may have missed. Let me know how you go once things warm up there!
Cheers!
Thanks for the information. I had thought of the pressure washer, but I want to try a sump pump and regulate the pressure with a controlled leak. Thanks for the tip on injecting the air before the nozzle. I was contemplating before and after the nozzle, so now I may try after the nozzle first. I will let you know what I find. Good luck on building your channel; like your videos!
Thanks for the information. I had thought of the pressure washer, but I want to try a sump pump and regulate the pressure with a controlled leak. Thanks for the tip on injecting the air before the nozzle. I was contemplating before and after the nozzle, so now I may try after the nozzle first. I will let you know what I find. Good luck on building your channel; like your videos!
Thanks for the information. I had thought of the pressure washer, but I want to try a sump pump and regulate the pressure with a controlled leak. Thanks for the tip on injecting the air before the nozzle. I was contemplating before and after the nozzle, so now I may try after the nozzle first. I will let you know what I find. Good luck on building your channel; like your videos!
Sorry 😐 for the multiple replies technology is not my thing
Thanks for the info. Cheers.
how to make a vapor blasting tool like that yesterday I made it but it doesn't work can you help
Post a video and comment with a link here. These can be a little difficult to work and it is hard to help if I cannot see what it is doing wrong.
I mean the ingredients to make the spray gun, bro
You say you made it but it does not work. I need to see what it is doing so I can tell you how to fix it.
My one is made from a brass outer housing that used to be an in line water filter. The inner air needle part is made from aluminium. The nozzle is a ceramic tip - 7mm from a sand blasting gun.
that's exactly what water filter material is for the device so that I look for it in the shop
I already got the ingredients at the online store, but I have to buy what size is inches so I can get results like yours
Great idea.
Cheers m8
Where are you based mate? I will see if I can find something local for you.
I'm in America. Already found the Chinese made, 15mm pipe and the ceramic tips on eBay. Will be making one of these guns for blasting with baking soda in a homemade blasting box. Thank you so much for taking the time to record, edit and post your work. Cheers
Mate where can I buy a nozzle, even if it’s a premade one from you, I just bought your guide from your website.
Hey Mate,
Thanks for the purchase. Where abouts are you based?
Hello again.. any idea when you're planning to redo the video on your home made nozzle?
Hi Rob.
Sorry I got a bit delayed after I blew the gearbox in my work vehicle, and the replacement box also died. Back in the shop this week to do the wiper video so I will try to slip the nozzle video in too
I totally understand..
I enjoyed your vapor nozzle video however I'm also confused about the small air outlet inside the Y-brass fitting... can you show us in detail how and what you made the air nozzle from pls? Its round the 3.00 mark. Just by showing the end of it inside the brass Y fitting doesn't show much... Suggestion can you pull your gun apart to show this in a better way?
Hi Rob, that particular gun I have just got tuned to a good length and set up well. So I dont really want to pull it apart.
I will however be building another one shortly so I will show all the the components and maybe draw a diagram too.
Essentially it is the same as any other sand blasting gun.
Thanks
Thanks... I totally understand about not wanting to disassemble it, and doing another video for us would be very helpful. After seeing your first video my "Y" brass fitting finally arrived this week.
❤