Section 10 — Material Requirements

Shop Painting

IPE Engineering Practice IPE-EP-10-3-1

Document number: IPE-EP-10-3-1 · Section: 10 — Material Requirements

SCOPE

• The purpose of this Practice is to provide recommended methods of surface preparation and coating application so as to provide the intended coating service life as well as to simplify all requirements through the standardization of work procedures, materials, color schemes, and inspection requirements as they pertain to shop painting.
• All OSHA, Plant, and Local Safety Regulations as well as proper engineering practice will be adhered to in the use, application and administration of this standard.
• Any deviation from this Practice must be approved by the procedure described in EP 1–1–3.
• An Asterisk (*) indicates that a decision by the Owner’s Engineer or Owner is required, or that additional information is furnished by the Purchaser.

2.0 REFERENCES

The latest edition of the following standards and publications are referred to herein.

STANDARDS AND PUBLICATIONS

DEFINITIONS

• Contractor - Company or business that agrees to furnish materials or perform specified services at a specified price and/or rate to the Owner.
• Inspector - A Refining Company appointed engineer or inspector.
• Manufacturer - The recipient of a direct or indirect purchase order for materials and/or equipment. In this context, a direct order is one issued to a manufacturer by a contractor or the Owner. An indirect order is one issued to a manufacturer by a vendor (recipient of a direct order) for materials, fabricated components, or subassemblies.
• Owner Refining Company
• Owner’s Engineer – An Refining Company appointed engineer.
• Purchaser - The party placing a direct purchase order. The purchaser is the Owner’s designated representative.

EXTENT OF PAINTING

• Painting systems, surface preparation procedures, and where they apply are listed in the Painting Schedule.
• The following items shall be cleaned and painted prior to delivery to the job site.
• Vessels, exchangers, and drums constructed of carbon steel.
• Carbon steel shop fabricated piping including nozzles, attachments and backs of flanges, but not machined surfaces. Threads and flange faces shall not be painted.
• Structural steel that is not galvanized shall be painted including contact surfaces. Paint applied on surfaces to be fireproofed shall be compatible with the fireproof material to be used.
• The exterior of heater and fired heater jackets, walks, handrails, supports, breaching, ducts, and stacks shall all be painted.
• The following surfaces shall be painted with the manufacturer’s standard surface preparation and finish. If the manufacturer’s standard does not include painting, then the surfaces shall be painted following the requirements of Section 6.0 listed as valves and accessories.
• Hand or mechanically operated valves and piping specialties such as traps, strainers, and filters.
• Pumps, bases, compressors, motors, turbines, conveyors, and similar machinery.
• Electrical equipment, instruments, gages, and local instrument panels shall be finished with the manufacturer’s standard finish. Instrument panels in control rooms shall be painted as described in the instrument specifications.
• It is intended that all exposed carbon steel surfaces, including surfaces of insulated equipment, shall be painted. Fireproofed surfaces shall be painted with a coating compatible with the fireproof material to be used. Insulated stainless steel shall be painted. The following will be evaluated on an individual basis:
• Grating
• Stair treads
• Galvanized steel

• Vendor shop finished items.
• The following surfaces shall not be coated unless specifically required by the Owner or otherwise noted in this Practice or in the Job Specifications:
• Non–ferrous metals such as aluminum, copper or copper alloys, monel, nickel, galvanized steel, and uninsulated stainless steel(over 11% chrome);
• Machined parts of operating equipment;
• Exterior surface of insulation;
• Fiberglass, plastics, and PVC piping;
• Brick, concrete, and concrete block, Transite and wood;
• Nameplates, identification tags, and sight glasses; and
• Gasket surfaces and weld joint areas of piping and other fittings to be field welded.
• The operating metal surface temperature shall be specified for each component to be painted. If none is available, the specified design temperature shall be used.

SURFACE PREPARATION AND APPLICATION

Surface Preparation

• Surfaces shall be prepared and cleaned in accordance with the S.S.P.C specifications indicated in the Painting Schedule, and as indicated in the paint manufacturer’s printed instructions specifying surface preparation for the paint system to be used.
• Where SP–1, SP–2, or SP–3 is indicated for metal surfaces, it means that the surface must be clean, dry, and free of dirt, dust, oils, or any contamination that would adversely effect the adhesion or appearance of the coating.
• Hand and power tool cleaning shall be conducted so as to remove burrs, weld spatter, sharp edges and other irregularities, but to minimize polishing or burnishing of the prepared surface.
• Abrasive blasting should not be performed if the steel surface temperature is less than 5 degrees F above the dew point or if the relative humidity is greater than 80%. If the prepared surface is degraded or contaminated subsequent to surface preparation and prior to paint application, the surface must be restored to the specified cleanliness.
• The abrasive media used in blast cleaning shall be a washed, uncontaminated, sharp, angular, hard abrasive designed to provide an anchor pattern recommended by the manufacturer of the specified paint system.

Application

• All work shall be performed in accordance with Steel Structures Painting Council SSPC–PA–1 Shop, Field and Maintenance Painting, the paint or coating manufacturer’s recommendations, and this Practice.
• Paint shall be applied only when the surface and ambient temperature is between 40oF and 150oF at maximum relative humidity of 85%. Catalyzed epoxy paints shall be applied below 50oF.
• All materials shall be applied in smooth, even coats without runs, sags, or bare spots. Dry film thickness where indicated in the Painting Schedule is the minimum required.

• All valve stems, glass, moving parts, bearings, couplings, shafts, lubricant fittings, equipment nameplates, or other important or sensitive parts shall be protected from damage by painting operations including over spray, dripping, and sandblasting. Any paint falling on, or applied to, such surfaces shall be removed. All such parts may be coated with rust preventatives or strippable coatings.

PAINTING SCHEDULE

• Surfaces of structural carbon steel, inland industrial environment:
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–6.
• Primer: Rust-Inhibitive Phenolic modified alkyd primer to a dry film thickness of 3.0 mils, maximum of 4.0 mils.
• Finish: Silicone alkyd to a total system dry film thickness of 2.5 to 4.0 mils. Total system dry film thickness of 5.5 to 8.0 mils.
• Surfaces of structural carbon steel, marine industrial environment:
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–10.
• Primer: Inorganic zinc to a dry film thickness of 2.5 mils, maximum of 4.0 mils.
• Finish: Heavy duty polyamide epoxy to a total system dry film thickness of 6.0 to 8.0 mils. Total system dry film thickness of 9.0 to 12.0 mils.
• Uninsulated carbon steel or low alloy tanks, vessels, exchangers, fired heaters, shop fabricated pipe and fittings, valves and accessories:
• Operating metal surface temperature of 200oF or less, in an inland industrial environment.
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–6 at exposed steel or damaged areas. SP–3 if abrasive blasting is not permitted.
• Primer: Rust-Inhibitive Phenolic modified alkyd to a dry film thickness of 3.0 mils, maximum of 4.0 mils.
• Finish: Silicone alkyd to a total system dry film thickness of 2.5 to 4.0 mils. Total system dry film thickness of 5.5 to 8.0 mils.
• Operating metal surface temperature of 200oF or less, marine industrial environment.
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–10 at exposed steel or damaged areas. SP–11 if abrasive blasting is not permitted.
• Primer: Inorganic zinc to a dry film thickness of 2.5 mils, maximum of 4.0 mils.
• Intermediate: Polyamide epoxy mastic to a dry film thickness of 6.0 to 10.0 mils.
• Finish: Epoxy urethane to a dry film thickness of 3.0 to 4.0 mils. Total system dry film thickness of 11.5 to 18 mils.
• Operating metal surface temperature 201oF to 500oF.
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–10.
• Coating: Heat Curing Silicone Copolymer to a dry film thickness of 2.0 mils, maximum of 2.5 mils. (Dampney Thurmalox 260 Series, or equal)
• Finish: Heat curing silicone to a dry film thickness of 2.0 mils, maximum of 2.5 mils (Dampney Thurmalox 260 Series, or equal). Total system dry film thickness of 4.0 to

5.0 mils.

• Operating metal surface temperature 501oF to 800oF, with peaks to 1000oF.
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–6.
• Coating: Dampney Thurmalox 245 (or equal) per manufacturer’s recommendation.

• Finish: Heat resistant silicone to a dry film thickness of 1.0 to 1.5 mils (Dampney Thurmalox 245, or equal). Total system dry film thickness of 3.0 to 4.0 mils.
• Insulated carbon steel or low alloy vessels, exchangers, heaters, shop fabricated pipe and fittings, valves and accessories.
• Operating metal surface temperature of 200oF or less.
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–10.
• Coating: Inorganic zinc to a dry film thickness of 2.5 mils, maximum of 4.0 mils.
• Operating metal surface temperature 201oF to 500oF.
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–10.
• Coating: Heat Curing Silicone Copolymer to a dry film thickness of 2.0 mils, maximum of 2.5 mils. (Dampney Thurmalox 260 Series, or equal)
• Operating metal surface temperature 501oF to 800oF, with peaks to 1000oF.
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–6.
• Coating: Dampney Thurmalox 245 (or equal) per manufacturer’s recommendation.
• Insulated stainless steel vessels, exchangers, heaters, shop fabricated pipe and fittings, valves and accessories.
• Operating metal surface temperature of 800oF or less.
• Surface Preparation: S.S.P.C. SP–1 and S.S.P.C. SP–6.
• Coating: Dampney Thurmalox 70 (or equal) per manufacturer’s recommendation.
• Operating metal surfaces with a temperature greater than 800oF shall not be painted.
• (*)Painting requirements for insulated high alloy (other than stainless steel) and non–ferrous materials will be stipulated by the Owner’s Engineer.
• (*)Requests to use painting materials alternative to the Dampney Thurmalox Series shall be reviewed and approved by the Owner’s Engineer.

INSPECTION

• The shop painting facility shall permit inspection of all phases of work by an authorized Refining Company Representative. The following items are general conditions and procedures which may be inspected at the facility:
• Internal shop environmental conditions, such as temperature, humidity, lighting;
• Surface preparation equipment;
• Steel surfaces prior to surface preparation;
• Steel surfaces following cleaning and surface preparation;
• Paint application equipment;
• Paint material containers and ID labels;
• Paint application process; and
• Paint film quality and thickness, wet and dry.
• An authorized Refining Company Representative shall, for each item coated, determine and record the information requested in the Daily Inspection Log (see Table 1). The Shop Paint Supervisor shall maintain this record if a Refining Company Representative is not present.Table 1

8.0 TABLES

TABLE 1

DAILY INSPECTION LOG

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