This Alumiweld System lets you repair aluminum and pot metal at home for a fraction of the cost. Even difficult to replace die-cast zinc and pot metal parts, so common on vintage cars, can be repaired and saved. Use with a pro- pane torch or a Jeweler's Torch. Rods are approx. 9" long. This unique soldering-type process requires no flux and produces a strong repair that can be filed, threaded, polished and plated. Step-by-step instructions included. Use Jigging Putty to hold broken parts in position during welding and to shield surfaces from heat damage.