Welding is the most common method of joining metals together. Gluing remains unfamiliar to most small users even though it is becoming more common in industrial and domestic applications. As impossible as it might sound, it is possible to attach two metal surfaces using glue. Highly innovative metal adhesives are used to achieve the bond. It means, therefore, that you cannot just use any other glue to join your metals. There is special metal glue for this special purpose.