Then if you decide you want to build a propane forge, there are a lot of threads on design, build, and safe use of these types of forges here. ![]() If youre actually going to build a huge forge with 4-5' of ceramic wool and lots of burners, do yourself a favor and buy actual refractory materials. ![]() Theres a reason its never recommended for blacksmithing while kast-o-lite and Mizzou are. And you and the grandkid will find out really fast if blacksmithing is something you want to pursue. The silica sand/plaster of paris refractory does not have good properties for forge use. You can use chimney mortar or furnace patch. JABOD forges are fun, and you get a real sense of how and why forges work the way they do. The most important part for this step is to get and even 50-50 mixture of sand and plaster of paris. What's nice about charcoal is that it's fairly easy to find and if you don't use the whole back, you can grill up some dinner. There are a ton of people in the Solid Fuel Forges subforum, though, who use it and can guide you. Its very low cost, easy to use and picks up fine detail. Plaster/Silica A mixture of 50 pottery plaster and 50 silica flour (also called flint) makes an exceptional and low-cost material for casting and fusing molds. You can also use coal-like from a mine-but I'm not familiar with that fuel. Plaster can be fired in the kiln but some of it will stick to the glass so it is not suitable to use for casting or fusing molds. ![]() Fuel can be coal but to make it easy, get some lump charcoal from the grocery store (not Briquettes-that's the wrong stuff) that's actually made from wood. The quantity of plaster mixture will ultimately depend on how many bricks you are. You can build one quickly and be forging the same day. Allow the mixture to soak for several minutes before stirring with a spatula. Trevor Colin, are you planning a propane forge? If not, may I suggest a charcoal forge based on Charles Stevens's JABOD (Just A Box Of Dirt).Ī JABOD has a lot to recommend it-low cost and uses a lot of basic skills, such as digging clayey dirt, sifting clayey dirt, and building with clayey dirt. We've been watching YouTube and I want to make a forge with my 11 year old grandson and don't want to disappoint him so if plaster of Paris is not the best thing to use what should I use?
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