Gets gun bores squeaky clean and shining but is harmless to all metal surfaces, including titanium, aluminum and carbon-discolored stainless steel. Actually breaks down carbon so copper and lead fouling float free; completely odorless, non-flammable, non-toxic, biodegradable and environmentally safe to use. Penetrates hydrocarbon-based greases, oils (will damage oil-based stock finishes) and gun powder residues; strips the metal completely clean but leaves a thin, rust inhibiting film with no oily feel. Heat and agitation will accelerate the cleaning action. Can be used as a tank solvent. Not a lubricant.