This AMPP standard practice presents guidelines for establishing minimum requirements to ensure proper material selection, application, and inspection of pipeline liquid coatings used for the repair and rehabilitation of previously coated, buried steel pipelines and for coating the external surfaces of field joints on newly constructed, buried steel pipe. This standard addresses the required properties, application recommendations, and quality control testing for field-applied liquid coating using various chemistries on buried steel pipelines. Examples of currently used chemistries for field-applied liquid coatings include epoxies, polyurethanes, and vinyl esters. This standard is intended for use by corrosion control personnel, design engineers, project managers, suppliers, purchasers, and construction engineers and managers.

Keywords: coating rehabilitation, field joints, girth weld joints, buried, pipelines, joints, fusion-bonded epoxy, reactive oxirane end groups, SP0169