What coating material may I use for external corrosion control?

Coating material for external corrosion control under § 195.557 must—#

(a)Be designed to mitigate corrosion of the buried or submerged pipeline;#

(b)Have sufficient adhesion to the metal surface to prevent under film migration of moisture;#

(c)Be sufficiently ductile to resist cracking;#

(d)Have enough strength to resist damage due to handling and soil stress;#

(e)Support any supplemental cathodic protection; and#

(f)If the coating is an insulating type, have low moisture absorption and provide high electrical resistance.#