Instructables
Picture of DIY Sea Glass
Make your own sea glass - NO BEACH NEEDED!
Strolling down the beach is one of my favorite activities.  I love collecting sea glass and using it around my home to add to the decor.
I am fortunate to collect sea glass because I live close to the beach, however, not everyone else does.

 
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Step 1:

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After much trial and error, I figure out a way to create your own DIY sea glass so everyone can have that laid-back beachy vibe as well!
Materials:
- Broken colored glass (I used green and brown wine and beer bottles)
- Cement mixer
- Sand 
- Tap water and salt
- Filter (You can use anything from a sand sifter to a colander)

Step 2:

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0 hours.jpg
I wanted to make large volumes, so I used a cement mixer to mimic the waves of the ocean. The steel fins inside the mixer act as the large rocks of the ocean sea bed. I started breaking wine bottles into small pieces and stole some sand from the beach, and added it all to the mixer (you can use sand from a playground sandbox if you don't have beach access). I used tap water and added salt to it before I added it to the mixer and then turned it on.  After an hour, I checked and all the sharp edges had broken off. 

Step 3:

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Filtering The Sea Glass.jpg
1 hour in mixer.jpg
2 hours in mixer.jpg
4 hours in mixer.jpg
Run for four hours. After running, drain the excess the sand-water slurry through a coarse screen.
 Below are some pictures of glass allowed to run for different lengths of time.
The third picture is of pieces that were pulled out after one hour in the mixer. Their sharp edges are broken, and there’s light etching of the surfaces.
The fourth picture is of pieces that were pulled out after two hours in the mixer. The shapes are slightly more rounded, and the surfaces are beginning to frost heavily.
And (finally!) after four hours, the pieces begin to look a lot like what you might find washed up on a sandy beach (see last photo). 
rjessup7 months ago

Could you use a rock tumbler instead?

andybuda1 year ago
i really dont think there is any benefit of adding salt.. allso have you tried with building sand or course sand and with and without water.. i have allso thort of this idea but not had the time or a use yet.. i did find a piece of security glass that had the wire running through it and that looked very cool..
I wouldn't run this without water. You'd get too much 'glass dust' which you'd end up breathing in....not good for the lungs!
tie abit of wet cloth over the mouth of the mixer with rope only an idea..i will try this idea out one day if its an old drum i might cut the paddles out i think this will help with the noise.