Aluminum Super Electric Detonators Instantaneous Electric Detonators offer a reliable means of controlled, simultaneous initiation of an explosive charge. They are manufactured in No.8 strength in Aluminum shells. The shells are fitted with electrical Fuse Heads. Precise consistency of the unique design of the Fuse Head is maintained by a fully automated process. PVC coated leg wires are sleeved through a PVC plug and crimped to the Detonator to ensure protection against moisture and water. The leg wires are water proof, ruggedly abrasion resistant, easy to strip and handle. The bare ends of the leg wires are shunted for protection against stray currents.