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  • kb3etz commented on NphRandom's instructable Propane Tank Aluminium Smelter (No Weld).3 years ago
    Propane Tank Aluminium Smelter (No Weld).

    Cast iron crucible works for me... It will sustain the melting of copper and mild steel (tin) properly seasoned between uses keeps the aluminum from adhering, and from rust forming. It also holds the heat much better, cutting down smelting time, and keeps the metal molten as you pour into your molds... I also use cast iron molds (old cornbread molds) so my castings look like small pieces of corn or hearts...season hot cast iron with beeswax, excellent release agent and prevents rust

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