Section 10 — Material Requirements

Field Painting

IPE Engineering Practice IPE-EP-10-3-2

Document number: IPE-EP-10-3-2 · 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 field painting. This Practice also provides the contractor with Refining Company work coordination and safety guidelines for all shop and field painting procedures specified in EP 10–3–1.
• It is Refining Company’s intent to eliminate the heavy metal coatings (Red Lead, Zinc Chromate, etc.) from use at the locations governed by this Practice.
• It is also ’s intent to continue evaluating low VOC (Volatile Organic Compounds) coatings currently being developed by manufacturers for the purpose of making the transition to such coatings as soon as feasible.
• 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

STANDARDS AND PUBLICATIONS ( CONT.)

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 - A 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, cleaning procedures, and where they apply are listed and described in the Painting Schedule. Equipment and items to be painted with materials and methods recommended in this Practice are described in this section.
• The painting contractor shall properly clean and spot prime all damaged areas of shop applied primers (or previously applied coatings) before applying succeeding coats. Any items not primed in the shop, but specified for a shop prime coat, shall be cleaned and primed in the field.

• 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, and
• 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, etc.;
• Machined parts of operating equipment and gasket surfaces;
• Exterior surface of insulation;
• Fiberglass, plastics and PVC piping;
• Brick, concrete, and concrete block, Transite and wood; and
• Nameplates,identification tags, and sight glasses.
• Operating metal surface temperature shall be specified for each component to be painted. If none is available, the specified design temperature shall be used.
• This Practice is not intended to cover architectural painting.

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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 40F and 150F at maximum relative humidity of 85%. Catalyzed epoxy paints shall be applied below 50F.
• 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 at exposed steel or damaged areas. SP–3 if abrasive blasting is not permitted.
• Primer: 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.
• Surfaces of structural carbon steel, marine industrial environment:
• Surface Preparation: 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 file 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 tanks, vessels, exchangers, fired heaters, shop fabricated pipe and fittings, valves and accessories:
• Operating metal surface temperature of 200F 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: 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 200F 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 201 to 500F.
• 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: Heat curing silicone to a dry film thickness of 2.0 mils, maximum of 2.5 mils. (Dampney Thermalox 260 Series, or equal)
• Finish: Heat curing silicone to a dry film thickness of 2.0 mils, maximum of 2.5 mils (Dampney Thermalox 260 Series, or equal). Total system dry film thickness of 4.0 to

5.0 mils.

• Operating metal surface temperature 501 to 800F, with peaks to 1000F.
• 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: Heat resistant silicone to a dry film thickness of 1.0 to 1.5 mils (Dampney Thermalox 245, or equal).
• Finish: Heat resistant silicone to a dry film thickness of 1.0 to 1.5 mils (Dampney Thermalox 245, or equal). Total system dry film thickness of 3.0 to 4.0 mils.
• Insulated carbon steel tanks, vessels, exchangers, fired heaters, shop fabricated pipe and fittings, valves and accessories:
• Operating metal surface temperature of 200F or less.
• 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 to a dry film thickness of 3.0 to 5.0 mils.
• Finish: Polyamide epoxy to a dry film thickness of 3.0 to 5.0 mils. Total system dry film thickness of 8.5 to 14 mils.
• Operating metal surface temperature 201 to 500F.
• 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: Heat curing silicone to a dry film thickness of 2.0 mils, maximum of 2.5 mils. (Dampney Thermalox 260 Series, or equal)
• Finish: Heat curing silicone to a dry film thickness of 2.0 mils, maximum of 2.5 mils. (Dampney Thermalox 260 Series, or equal) Total system dry film thickness of 4.0 to

5.0 mils.

• Operating metal surface temperature 501 to 800F, with peaks to 1000F.
• 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: Heat resistant silicone to a dry film thickness of 1.0 to 1.5 mils. (Dampney Thermalox 245, or equal)
• Finish: Heat resistant silicone to a dry film thickness of 1.0 to 1.5 mils. (Dampney Thermalox 245, or equal) Total system dry film thickness of 3.0 to 4.0 mils.
• Insulated stainless steel vessels, exchangers, fired heaters, shop fabricated pipe and fittings, valves and accessories.
• Operating metal surface temperature of 800F or less.
• Surface Preparation: Surface must be free of chlorides, sulfides, and other materials known to cause stress corrosion cracking. Use chloride free solvents to clean surfaces to be coated as per coating manufacturer’s recommendations

• Coating: Dampney Thermalox 70 (or equal) per manufacturer’s recommendation. Total system dry film thickness of 2.0 to 2.5 mils.
• Operating metal surfaces with a temperature greater than 800F 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 Thermalox Series shall be reviewed and approved by the Owner’s Engineer.

INSPECTION REQUIREMENTS

• The painting contractor shall permit inspection of all phases of work by an authorized Representative. The following items are general conditions and procedures which may be inspected at the work site:
• Atmospheric conditions, such as temperature, humidity, dew point;
• 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 Representative shall, for each item coated, determine and record the information requested in the Daily Inspection Log (see Table 1). The contractor’s Paint Foreman shall maintain this record if a Representative is not present.Table 1

8.0 TABLES

TABLE 1

DAILY INSPECTION LOG

Comments:

TABLE 2

EQUIPMENT COLOR SELECTION

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