CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 105–199) > SUBCHAPTER D—PIPELINE SAFETY (Parts 186–199) > PART 195—TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE > SUBPART H—Corrosion Control (§195.551 to §195.589) > 195.559—What coating material may I use for external corrosion control?

195.559—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.