This standard is a procedure for the application of metallic thennal spray coatings (TSC) of aluminum, zinc, and their alloys and composites for the corrosion protection of steel. Required equipment, application procedures, and in-process quality control checkpoints are specified. This standard may be used as a procurement document. Annex A presents a fill-in-the-blanks model procurement specification. Not included in this standard are requirements for design and fabrication, thermal spray equipment qualification, coating selection, and operator and inspector certification. This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
The procedure for application of TSCs for the corrosion protection of steel includes proper (a) surface preparation of the substrate steel, (b) application of the TSC and, (c) application of the sealer or sealer and topcoat. The procedure includes use of suitable abrasive blasting, thennal spraying, sea1ing/topcoating, and in-process QC checkpoints.
This standard may be used by owners and engineers to detail and contract for the application of TSCs for the preservation and maintenance of steel structures. This standard may also be used by TSC inspectors and Thennal Spray Coating Applicator (TSCA) to develop and maintain application procedures, equipment inventory, and an operator-training program.
This standard is not meant to be an inspection standard. See SSPC 97-07 for inspection guidance.
