1 Specification for fusion bonded Epoxy for External pipeline coating TABLE OF CONTENTS APPLICATION ..2. INSPECTION ..5. coating QUALITY CONTROL HANDLING AND STORAGE APPENDICES I Bend Test Procedure II Foam Structure Test Procedure Specification for fusion bonded Epoxy for External pipeline coating 1 of 15 SCOPE Piping shall be supplied without varnish or mill lacquers. General This Specification covers the minimum coating material, application, and handling requirements for fusion bonded Epoxy Shop applied External coating material (FBE) powders used for External pipeline shall be one of the following fusion .
2 coating . bonded Epoxy powders: For lines operating at temperatures up Conflicting Requirements to 150 F Several testing and surface preparation standards are referenced in this 3M Scotchkote 206N Specification . The latest editions of International Interpon HD3005 these standards shall be considered a Nap Guard Mark X part of this Specification . In case of Lilly Pipeclad conflict, this Specification will take Valspar D1003LD precedence over the referenced documents. For lines operating at temperature up to 230 F Industry Standards 3M Scotchkote 226N or equivalent fusion bonded Epoxy shall conform to the following Specifications, except as supplemented in this Specification .
3 The Batch Information latest published industry standard shall Each container of powdered coating be used. materials used by the Applicator shall be marked with the following Steel Structures Painting Council (SSPC) information: SSPC SP1 Surface Preparation The manufacturer's name The material identification number SSPC SP10 Near White Metal Blast The batch number Date of manufacture SSPC VIS 1 Pictorial Surface Preparation Standards The shelf life and storage for Painting Steel Surfaces temperature limits National Association of Corrosion The fusion bond Epoxy manufacturer Engineers (NACE) shall supply the information listed below for each batch of powder.
4 RP 0490 90 Recommended Practice, Holiday Standards for comparison shall also be Detection of External fusion bonded provided for each item. This Epoxy pipeline Coatings 10 to 30 mil information will be used to check that Thick no changes have been made in the MATERIALS Epoxy formulation. Piping Infrared scan of powder and typical powder scans for comparison. Specification for fusion bonded Epoxy for External pipeline coating 2 of 15 Gel time at recommended Company inspector may reject any application temperature. product not proven by the Applicator to Particle size distribution.
5 Be in compliance with this Specification . coating powder shall be segregated by Proper equipment for the handling, batch numbers during shipment, unloading, and temporary storage of storage, and handling. Batches shall be bare pipe shall be used to avoid any used consecutively during coating damage to bare pipe and pipe ends, or application and shall not be mixed obliteration of necessary pipe markings. except when necessary to keep the The Applicator shall also take special coating process continuous. care to avoid damage to any internal coatings during all phases of the No powder stored beyond the External coating process.
6 Manufacturer's recommended shelf life shall be used for coating pipe. The finished coating shall have a cutback at each end of the pipe. The Repair Materials length of the cutback shall be 1 inch Materials for touch up or repairs shall minimum, 2 inches maximum, mea . be the original powder, the sured from the end of the pipe. If manufacturer's two part Epoxy repair coating materials accumulate within material, or other compatible material these areas, the cutback areas shall be approved by the powder manufacturer. buffed free of coating material.
7 coating and repair materials shall be Surface Preparation stored, handled, and applied in strict Prior to abrasive cleaning, all oil, grease, accordance with the manufacturer's salts, and other deleterious materials Specifications or as directed by an shall be removed by solvent cleaning in authorized manufacturer's accordance with SSPC SP1 or by representative. detergent washing or steam cleaning. APPLICATION No residue that will affect adhesion General shall be left on the surface. The Contractor shall take measures to The fusion bonded Epoxy coating shall prevent visible and non visible surface be applied in accordance with the contamination of bare pipe during coating manufacturer's application transport, handling, and storage.
8 Prior procedures. The Applicator must have a to surface coating , the Applicator shall copy of these procedures at the site demonstrate by testing the abrasive where the coating is being applied. Any blast material used to clean the pipe for deviation from the coating the presence of water soluble salts such manufacturer's application procedures as chlorides, sulfates, and nitrates. If shall be submitted to the Company for salt contamination is detected, salts approval. shall be removed by phosphoric acid (5 percent solution) and/or high It shall be the Applicator's responsibility pressure demineralized water based to stop the coating process at any time treatment.
9 When conditions may exist that might adversely affect the coating quality. The Specification for fusion bonded Epoxy for External pipeline coating 2 of 15 The pipe shall be preheated prior to grinding of the repair and for restoring blast cleaning to a temperature at least the anchor pattern at the locations of 5 degrees in excess of the dew point or such repairs when the size of the repair higher if recommended by coating exceeds 3 inches in any direction. The manufacturer or Applicator. All pipe tools and manner employed to remove shall be preheated in a uniform manner metal defects shall not contaminate the to avoid distortion of the pipe and/or surface.
10 Damage to internal coatings. If the profile is destroyed over a single All External surfaces to be coated shall area greater than 25 in2 or over a total be cleaned to a near white metal finish area greater than of a pipe joint, in accordance with Specification SSPC the pipe shall be reblasted at no SP10. Abrasive cleaning on steel pipe expense to the Company. surface shall have a slightly angular pattern. Particle hardness and size Surface preparation shall not reduce the distribution of the shot employed shall pipe wall thickness below the minimum be continually controlled by screening required by the pipe Specification .