Rosebud is the flame you will wish to use. The lead compound is available from welding shops and suppliers to fab shops such as sign shops and metal fabricators, you know, artsy kind of guys who buy from them. The paste is what you will be working with. when the metal is prepared and ready, you will use a "soldering" technic using the rosebud flame and not an iron type of heating element. Quite simple really, just time consuming.