Particle loading a castable resin

Hello all! Has anyone loaded a castable resin with their own particles? I am wanting to experiment with different particles and particle sizes to load a castable resin with. Any ideas?

Conceivably, you could load it with anything from talc to iron filings. What do you hope to accomplish? What’s the goal?

I’ve been playing around with this as well. How has your testing gone?

I’m trying to make castable a bit thicker so I can experiment with one of those “pen-printers” like the Atmos. Because castable, the filler has to burnout as well so will be experimenting with cornstarch, baking soda, stuff like that.

Let you know