i think that there is something kind of cool about kinetic sand i was curious how it would work as a mold making material. to my surprise it worked really well as a reusable mold for both molten metal ...

Have you ever played with Rose’s metal? It’s a fusible alloy of bismuth, lead, and tin with a low melting point of around 100 °C. Historically, it’s been used as a solder for cast iron railings and ...