▲ 1 r/ResinCasting
We tried this method some years ago at a foundry. Using carbon fibers chopped to around 1/4 inch and adding them to the outer layers of the ceramic worked to strengthen the shell, acting to hold it together during the burnout. The drawbacks were that it was a little harder to break the shell off after casting and also the tiny fibers were like little splinters in your fingers.
u/Earth_Observer2025 — 27 days ago