An improved glass powder is composed of better quality glass (i.e. Spectrum Glass).  This our second major glass powder tested in our lab. It has ok damp strength, good green strength, and OK behavior in the kiln cycle.

Spectrum Powdered Glass – 1000 units

Powdered Sugar   ———– 90-100 units

Maltodextrin   ————- 90-100 units

The Spectrum Glass is available in cullet form (pieces of broken glass) which then must be crushed/powdered to better than 400 mesh.  We had Olympic Color Rod perform this task.

If you can’t find Maltodextrin, then use Benefiber (it is no longer maltodextrin but rather a wheat dextrin).

Use either binder from this site.  You need to run as low of binder settings as you can for this glass recipe.  Let the part dry (in the bed) overnight and bake at 175 F for one hour.  Then kiln fire to the desired crispyness.

The resulting parts are opaque white.

Three White 3DP Glass Pots

Three white 3DP glass SW pots

8 Comments on 3DP Glass Recipe V2

  1. Anna says:

    Hi
    Uroboros glass powder is the sister product to Spectrum sheet or cullet. Uroboros provides the compatible powder for Spectrum. They come in different particle sizes. So you don’t need to crush your own powder. I have milled on my own ball mill a lot of powder but have problems with contamination. Has that been an issue for you at all?

    • ganter says:

      Anna, the folks at Olympic Colored Rod did the crushing and screening. They even carry crushed/powdered Spectrum Nugget glass.

  2. Anna says:

    Hi
    Uroboros glass powder is the sister product to Spectrum sheet or cullet. Uroboros provides the compatible powder for Spectrum. They come in different particle sizes. So you don’t need to crush your own powder. I have milled on my own ball mill a lot of powder but have problems with contamination. Has that been an issue for you at all?

    • ganter says:

      Anna, the folks at Olympic Colored Rod did the crushing and screening. They even carry crushed/powdered Spectrum Nugget glass.

  3. frank says:

    Can you give more details about the firing? What did you use to support the glass? Temps?

    • ganter says:

      Frank, please check out our publications for these details. Might I suggest that you try Google Scholar using ganter and marchelli and glass. You should find no less than three publications. You might also plan on attending the GAS 2015 conference where I will be presenting on 3D printing meets glass.

  4. frank says:

    Can you give more details about the firing? What did you use to support the glass? Temps?

    • ganter says:

      Frank, please check out our publications for these details. Might I suggest that you try Google Scholar using ganter and marchelli and glass. You should find no less than three publications. You might also plan on attending the GAS 2015 conference where I will be presenting on 3D printing meets glass.

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