4 8KG MegaCast, Foundry Clay Graphite Crucibles Black Cup Furnace Torch Melting Casting Refining Gold Silver Copper Brass Aluminum

The 4 8KG MegaCast Foundry Clay Graphite Crucibles are versatile tools for melting and casting gold, silver, copper, brass, and aluminum. The crucibles have been used in homemade wood pellet foundries, gas fired furnaces, and pottery kilns. While the instructions suggest curing the crucibles in an oven with borax, customers have had success with other heating methods such as setting the oven to self-clean or slowly heating the crucibles. The crucibles have various durability ratings, with some customers reporting that they hold up well after multiple uses, while others have experienced the crucibles falling apart after one use. Overall, the 4 8KG MegaCast Foundry Clay Graphite Crucibles are a decent choice for those looking to melt and cast small amounts of metal.