1. Even trace amounts of MOISTURE and MOLTEN METAL don't mix; Steam explosions are the cause of death in foundries.
2. NEVER put water on a metal fire. This can cause a HUGE EXPLOSION
3. Have a DRY pile of sand and a shovel ready to put out fires or to control metal spills.
4. Have a sand bed under all areas. The sand bed should be at least 3 inches thick.
This will help in containing metal spills and will help protect flooring.
5. Never pour over wet ground. Remember, even TRACE AMOUNTS of MOISTURE can cause EXPLOSIONS.
6. Molten metal spilled on concrete will cause the concrete to explode. Use a thick sand bed over concrete.
7. Always use clean metal as feedstock. Combustion residues from some lubricants and paints can be very toxic.
8. Always operate in a well-ventilated area. Fumes and dusts from combustion and other foundry chemicals, processes and metals can be toxic.
9. Use a NIOSH rated dusk mask. Dusts from sand, parting dusts and chemicals can be hazardous or cancer causing. Protect your lungs.
10. Wear safety gear, This includes, Leather shoes , Fireproof apron ,Foot and leg protection, Proper gloves, wire mesh face shield, Safety glasses , Cotton baseball hat.
11. Never use a crucible that has been damaged or dropped. It's just not worth the risk. Imagine what would happen if a white-hot crucible of brass crumbled as you were carrying it.
12. Always charge crucibles when cold. Adding metal to a hot crucible is really dangerous. If there is moisture on the metal, even just a haze, the metal can cause the entire contents of the crucible to explode.
13. Spilled molten metal can travel for a great distance. Operate in a clear work area.
14. use Long-handled pliers (or tongs) and rod. The pliers are designed for adding things to the crucible and adjusting coals, etc. The rod is used for mixing the contents of crucible and move dross to the side just before pouring.
15. Think about what you are doing at all times. Focus on the job at hand and the next step. Have all moves planned and rehearsed prior to any operation.
16. Educate yourself beforehand and always be careful of your own and bystander safety.