Loctite C5-A paste anti-seize lubricant is compatible with brass, copper, iron, plastic and steel. Main ingredient of comprised of copper.
Is rated as Military Grade. Can be used under the following temperature ranges: -20 F minimum operating temperature to +1800 F maximum operating temperature.
In addition to the other features this product also has corrosion-resistant properties and meets the following standards: CFIA Approved, MIL-PRF-907E.
Used by manufacturers of Firearms for an anti-seize. Can be used to preserve or store firearms.
Also used in Time-Sert Spark Plug Thread Repair Kits