Introduction: Stainless Steel Flask Turned Into Awesome Sandblaster

Picture of Stainless Steel Flask Turned Into Awesome Sandblaster

From Flask to Sandblaster in 20 minutes.

Step 1: What You'll Need

Picture of What You'll Need

I've been wanting to build my own sandblaster for ages, for glass frosting etc. The commercially available ones are quite expensive and do not meet expectations in most cases.

I discovered an old unused Stainless Steel flask in the back of the cupboard and decided to give it a go.

You need a similar container to what I used, but a plastic container will work as well. It just won't be as sturdy.

You will also need:
1. Drill bit corresponding to your chosen air coupler
2. Glue/Adhesive for securing and sealing fittings
3. Steel/Copper pipe with a OD of 4mm
4. Air supply that puts out at least 6 bar of pressure.
5. Fine dry sand
6. Something to sift the sand with ie. Your wife's cake flour sieve.
7. Funnel to get the sand into the container.

Step 2: Some Drilling Involved

Picture of Some Drilling Involved

Drilled a 8mm hole through the screw-on cap. Threaded a quick coupler into it for the air supply and sealed it with some Bicarbonate of Soda and Superglue. Pratleys Steel or JB Weld will work even better.

Step 3: Some More Drilling

Picture of Some More Drilling

Drilled a 4mm hole through both walls of the flask and inserted a 4mm OD steel pipe through the hole. About 2mm of the pipe sticks through on the inside. The length of the nozzle is 100mm, but you can make it longer if you wish. Once again I secured and sealed with Bicarb/Superglue.

Step 4: Almost Ready to Sandblast

Picture of Almost Ready to Sandblast

Take some fine dry sand and sift it into a seperate container. Once you have enough to fill your container several times, you are ready to start blasting.

Step 5: Filling It Up and Blasting Away

Picture of Filling It Up and Blasting Away

Fill your blaster with sand up to about 20mm below the outlet nozzle when standing your container upright.

Get your compressor running and make sure you have an appropriate space to do the actual blasting. Safety goggles, gloves and long sleeves recommended. Please wear a respirator or at least a good quality dust mask to avoid silicosis.

Plug the airline when you are ready to blast. Some sand will come out the nozzle at this stage, but not much (still enough to sting though, so be carefull).

Step 6: Start Blasting

Picture of Start Blasting

To start blasting, slowly turn your blaster upside down while aiming the nozzle on the side at the workpiece.

Test it on some scrap first. At 8Bar it blows a hole through a beer can, so start at 3Bar and work your way up.

Step 7: Some Test Pieces and 4 Windows Done With Stencils

Picture of Some Test Pieces and 4 Windows Done With Stencils

Enjoy and be safe

Comments

corwin7 (author)2016-01-18

You can also use baking soda instead of sand avoiding the silicosis as well as creating a much gentler touch.

bryceklang (author)corwin72016-10-15

Wouldnt the baking soda in the air be explosive? I would not recommend that

corwin7 (author)bryceklang2016-10-18

No to the best of my knowledge baking soda is neither flammable nor explosive. BTW might check google to see the thousands of craftsman using soda instead of sand.

deswiger (author)2016-01-19

Nicely done.

Home Mechanics (author)2016-01-18

looks dangerous to me sorry connecting compressed air to a unknown container not made for that kind of pressure. If that popped or exploded in your hand it would blow sand in every body orifice causing damage or even your hand. Compressed air can be dangerous if you don't respect it. Be safe and take care. Regards Rik

rbclima (author)2016-01-17

Seems harmless, but sandbasting IS REALLY dangerous. Look for "silicosis".

NormanV1 (author)rbclima2016-01-17

Thanks for that.....I have added a silicosis warning to my Instructible.

rbclima (author)NormanV12016-01-18

You can also use Walnut Shells or Aluminum Oxide instead of sand.

ScrappyGirl (author)rbclima2016-01-18

Walnut shells are the best! Most pro's use them depending on the application. I am wondering if my would be hubby has a flour sifter? mmmm

NormanV1 (author)ScrappyGirl 2016-01-18

I'll have to try the wallnut shells....thanks :)

NormanV1 (author)2016-01-16

Thanks for your comments!

anilbot (author)2016-01-16

Simple and use full !!
Thanks?

Dmdebbiedee (author)2016-01-16

Brilliant. . well done!!

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Bio: Powder Coating Operator in Cape Town
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