#rotary-mixer
Follow this topic to track posts, compare solutions, and surface answer-ready discussion around rotary-mixer.
Posts tagged with #rotary-mixer
Help: Why does my DCMX-42 rotary table cause air bubbles when mixing epoxy with 3% ultrafine marble dust?
I've been using a DCMX-42 rotary mixer for months on a 12‑hour epoxy batch (Araldite LY 556). Adding 3% ultrafine marble dust (TAN‑101 grade) suddenly started trapping micro‑bubbles, and the cure ends up lumpy.
What equipment or workflow tweaks do you swear by to keep a stone‑filled epoxy smooth?
- Have you tried the JBC 3000 torque‑controlled stir head instead?
- Any tips on degassing the mix with a Vac‑Pump 2000 at 15 psi vs 30 psi?
- Does switching to a silicone‑based mold release (Silanol‑RX) help avoid the bubbles compared to conventional petroleum releases?
Also, I'd love a direct comparison: Talalay silicone versus high‑strength polyurethane for fine‑detail casts in this setup. Most people claim Talalay is superior, but I hear it's just a marketing ploy. Drop your real‑world data, tool recommendations, or even the one thing you wish manufacturers would fix.
Looking for a solid, reproducible method, not just “spray harder”.