What do I do with powdered glass?

 I made a tool that turns glass into fine powder. The powder is quite pretty, and I originally intended to use it as frit. As it turns out, this glass powder does not make very good frit...so what do I do with it?

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Kiteman7 years ago
You could try cloisonné projects, powdering different colour glass to get the colours of your image.
Good idea. The cloisonne wires might help to mitigate COE differences, which would allow using bottle glass without all that pesky shattering.

I need some fine powder for making gesso, chalk makes a very poor gesso for canvas. I will have to mix it with acrylic emulsion. It nees to be relay fine, not the kind for sand blasting. approx. 15 µ is needed.

cjohnson14810 months ago

melt it down by mixing it with clay or other media to make an enamel type vessel or pot or vas like in pottery they use a clear coat over most vases that keep the colors on and hardens the surface once exposed to heat.

camerriman2 years ago

You could 3D print mold positives from photographs then fuse the frit or powdered glass into the mold. With at least 2 colors, you can create a continuous tone image in glass. A reverse lithophane - or, lithovitrum print. This is fabricated entirely of frit from a 3D printed mold positive.


Can you advise what particle size is the powder, in which quantity. We are interested in using this powder as ad-mix to concrete for research purposes. Please reply to m.fernando@uws.edu.au

timmyg13 years ago

I would be interested in knowing about this tool! powdered glass mixed with cement becomes super smooth which is ideal for pouring into detailed molds. I am presently designing a headstone for my recently deceased mother, and i need fine powdered glass to pull this off. getting ahold of powdered glass where i live is not posible. I would rather make my own. perhaps you can help.

ganglion5 years ago
I'm looking at using it to thicken enamel paint. See:
mcshawnboy6 years ago
I saw UR question earlier and have since found molds at Delphi stained glass supply to make different shapes from powdered & frit sized glass, also they have a microwave kiln, but I can't speak to how effective it is. I saw this from Ghana, Africa on similar projects including painting designs of powdered glass on previously fired beads that imitate Italian millieflori that was export there centuries earlier. They use a large metal pipe & metal rod to break larger quantities of bottles into glass powder. I found that most bottles have a COE around 88, but varies bottle to bottle. http://www.eshopafrica.com/acatalog/Beads.html
Hi I am in the UK and using glass powder (-250 microns) as a flux in bricks. Depending on the clay it can lower firing temperature by as much as 70 degrees C. It can be used in santaryware and other ceramics but needs to be a lot finer, at least -75 microns.

Coarser grades are good for pressure blasting media - approved by the US military - and water filtration media. These two applications are really taking off now in the UK.

I am happy to talk further especially if you have some in the UK! My email is a.carp@resource-uk.co.uk

Regards, Andrew.
I saw a tutorial online where a lady named Petra Kaiser made paint with it to decorate her slump-form glass projects. She used aloe vera to create the paint-- equal parts powder to equal parts aloe vera/liquid stringer or fritz spritz with water to desired consistency. Here is another page with info and a video of Ms. Kaiser using her technique:



hope this helps!

jeff-o7 years ago
Could you use it for glazing pottery?
Maybe fuse it onto a copper shape in an interesting pattern? You could wet-pack it just like vitreous enamel, or sift it onto a pattern drawn with Klyr-Fire. Could be cool, could be junk, you never know.
But onto more importanat things: What's the story with the frit-maker? I was just getting ready to build one, but I'd love to know what yours is like before I start. Sounds like it works pretty well.
nepheron (author)  RavingMadStudios7 years ago
 I successfully enameled a penny with it (20 mins ago)...so it DOES have a use :)

My frit maker is a just a small steel tube with an end cap. A hex bolt is the plunger.
Very cool. The one I'm going to build is exactly the same, just a bit larger. Good to know that it's a workable approach. I have boatloads of bottle glass and float glass shards from another project that really want to be frit....
caarntedd7 years ago
Don't inhale it, or get it in your eyes.
Honestly?  Carefully and safely dispose of it.  This is extremely horrible stuff to get in your eyes or your lungs, and extremely difficult to control without the proper safety equipment.

If you're still determined to use it somehow:
It is used as an additive in paints, plastics, ceramics, and other composite materials.  Often to add a sparkle or shine, and sometimes in art to add a little bit of a grainy texture and shine.  Consumer products are usually not as finely-ground as commercial products or what you may have made at home because larger grains are safer to handle.

I've heard of glass powder being used in filters, but I doubt that was for anything useful to the average joe. 

I've also heard of glass powder used in matches and possibly some pyrotechnics... but my knowledge on that subject is limited and I think it's only used to help create friction.

I don't know what type of glass you've been playing with either.  I can assume you know your glass from your use of the term "frit," but if you can't identify the type of glass it's useless in any glassworking situation.  If you can, it most likely will be able to be melted down and reused.
To dispose of:

Assuming it's already in a container, dampen the surface of the material with a fine mist of water from a spray bottle.  This will allow you to move it around and put a lid on it without glass dust flying around everywhere.  If it's already lidded, great!   Put it in a tough plastic bag, tie it up tightly, and then put the whole thing in a second plastic bag. 

Ask your local waste management authorities whether or not it can be accepted as regular waste or not and where it can go.
nepheron (author)  DELETED_GuardianFox7 years ago
 I'n not trying to dispose of it, I'm trying to use it!