Cu-nnect Weld Metal is a high quality mixture of copper oxideand aluminium, contained inside plastic cartridges which arepacked in boxes of 10 or 20 pieces depending on the powderweight. The metal retaining discs are contained in a separatebag inside each box. Each weld connection uses one disc. The starting powder is compacted at the bottom of each cartridge with the Weld Metal on top. The starting powder is released by firmly tapping the base of the cartridge. Cu-nnect Weld Powder is not explosive, shock sensitive or subject to spontaneous ignition.