Rock and Stone Sandblasting

There is a lot more interesting things you can do with your sandblaster that some people don’t even think about.  I have been sandblasting for years and I didn’t discover the idea of blasting and sandcarving rock or stone till later on.

This involves the process of creating designs into stone.  What you do is cut out a stencil from a resistant rubber or vinyl material and blast the area until it cuts a desired depth.  Have you ever seen those large rocks in people front yards with their address marked in it?

Well, this is all done by blasting the rock and is better known as sandcarving.  I talk a little bit about this in the sandblaster plans, tips, and information manual that I wrote up.  The top thing that you need to know is that a pressure pot sandblaster is required to carve the stone because it has high pressures that is needed to get the job down.

Shown below is an small example of a stone that I found in a nearby river.

A stone that was sandblasted with a process known as sandcarving.

What I did was just cut out a stencil and blasted over the stencil on the rock with about 90 psi (from what I remember).  After that, you can spray paint the carvings to highlight the deep markings like I did.  I used a black spray paint but you can use your creativity with different vibrate colors.

Please leave any comments below or any questions.  Thanks and hopefully I can get some more information up soon.

64 responses to “Rock and Stone Sandblasting”

  1. Dale from Cherry Hill

    Hi Eric,
    I’m considering building the pressure pot that you have designed. How do you rate your unit next to one of the cheaper Harbor Freight units. I’m just starting out and will probably use the pot for general rust cleaning. Love your site. Thanks

  2. Eric R. W.

    Not sure if you got my plans, but as stated there- I like the home made one better. It seems to work better and I think its because the inside of the tank is smooth unlike the HF model.

    The only problem with my blaster/ plans is it doesn’t have a safety plug. Thanks!

  3. Josh

    Lots if great timely info, interested in learning as much as i can about sand carving and glass etching. And the stencils to use with them. Thanks for your emails with helpful info so far.

  4. dave

    just wondering if you use the vinyl mask and if so how do you get it to stick well to varying stones.? My brother has a giant sandblasting booth we intend to try this with but have no experience except with wood, any tips or suggestions? Thank you, DAVE

  5. tom

    i am gonna be sandblasting granite benches and bluestone is the 100lb eastwood tank with aluminum oxide a good choice if not any recomendations?

  6. jay

    How do I even get started and what tools do I need and what kind of media and what kind of material to draw the stencil on?

  7. Megan

    i was wondering what kind of sand or material thats the best for granite?

  8. Jim

    What equipment would I need to sandblast rock (sand carving)? I mostly would like to do river rocks and possibly bone. I am a beginner.

  9. Eric R. W.

    Hi Jim, the most essential thing is a pressure pot sandblaster. Then just need some thick sandblast resists to make stencils.

  10. Stacey

    I would like to sandblast river rock for wedding favors. Can you recommend the necessary tools I would need please. Just writing letters on river rock for 100 guests. Thanks so much !

  11. Sylvan

    What size compressor is needed to fill a pressure pot sandblaster? Also will a Roland 24 be good enough to cut the stencils?
    Thank you in advance for the information.

  12. Dan Conklin

    I have a siphon blaster, not a pot. Is it still possible to carve stone with it? I tried it with my compressor at 150 psi and my vinyl stencil didn’t hold up for an instant. Does anyone know how thick a material I need for a vinyl stencil?

    I bonded the stencil to the uneven rock with drywall corner adhesive. since the PSA on the vinyl wasn’t strong enough to h0ld it in place. Could that have been part of the reason the stencil didn’t hold up?

  13. samson

    The Carving was really wonderful. Keep it up.

Leave a Reply

Free Info:

I have discovered some very interesting info and DIY stuff or tips about sandblasting. The only way to get my insider info is to subscribe below:

Information Updates

News Blog

Find the latest information on sand blasting and reviews of sandblasters.

Equipment Picks