A generous compound of copper flakes in a synthetic base with the addition of aluminum flakes in a hybrid mix and intended for all aluminum connections in which aluminum is one of the surfaces. Ideal for antenna elements, feed system joints, bulkhead connections, etc. Temperatures range -60F to 1,500F Use anti-oxidants in a liberal manner when making connections, allowing excess compound to squirt outward from the joint when pressurized. This excess may be easily captured and restored to original tub for reuse. Anti-oxidants may be cleaned off for recoating with most petroleum distillates or alcohols. Cleanup from bands is with soap and water – non-toxic to touch. Each tub is shipped with owner’s manual / instructions for general usage.