Ontario ENGINEERING STANDARD SPECIFICATION 1/14 REV. CIVIL MATERIAL PROTECTION PAINTS GENERAL REQUIREMENTS. Approved by.

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1 1/1 Rev Description Revision by Approved by Issue Date YYYY/MM/DD 1 Document format and number changed. Previous number AA 2011/12/31 AA 2011/12/ /0/27 2 Approved for use in Thompson No Changes AA 2011/12/31 AA 2011/12/ /08/09 3 Reviewed 2015 No Changes AA 2015/08/10 PB 2015/08/ /08/10 Daily Log Sheet Appendix B Added AD 2016/03/29 AA 2016/03/ /03/29

2 2/1 1.0 PURPOSE This specification describes the minimum requirements for painting and shall be read in conjunction with the specific requirements of the paint system indicated on the project drawings or the purchase documentation. Unless indicated otherwise in the project scope, this scope includes: The supply and application of paint materials. The surface preparation suitable for the applicable paint system including the supply of all materials and equipment. The inspection and quality assurance of the surface preparation and paint application. The supply, erection and removal of all scaffolding and protective materials and devices. The supply of all labor, supervision, equipment, materials as necessary to perform the work. Field welded joints, as specified on project drawings, are not to be painted three (3) inches either side of the joint. The Contractor to supply paint to paint these areas in the field. The following shall not be painted unless noted otherwise in the project scope: Copper, bronze, chromium plate, nickel, stainless steel, anodized or lacquered aluminum, monel metal and factory finished metals. Insulated electrical cables. Any metal embedded in concrete unless noted otherwise on the drawings or scope of work. 2.0 REFERENCE DOCUMENTATION The following documents were used in the development of this document or have instructions and procedures applicable to it. They shall be used in their most recent revision. SPEC Paint-Interior-Poured Concrete SPEC Paint-Interior-Concrete block masonry wall SPEC-1500 Paint-Interior-Gypsum Board Surfaces-Latex SPEC Paint-Interior-Hollow Metal Doors and Frames SPEC Paint-Steel- Medium Industrial Epoxy SPEC Paint-Steel-Heavy Industrial and Underground- Epoxy. SPEC Cast-In-Place Concrete SPEC-1002 Structural steel quality requirements SPEC-1003 Steel work Fabrication

3 3/1 SPEC-100 Steel work Erection 3.0 DEFINITIONS Paint shall mean a liquid mixture of a pigment with one or more base substances, which is applied with brush, roller, or spray equipment. This includes stains and varnishes. Coating see paint above. Owner shall mean Vale s authorized representatives. Paint Manufacturer shall mean an authorized technical representative of the manufacturer of the coating system that has been selected. Applicator shall mean a company under contract with Vale to supply services or goods to Vale. Inspector shall mean an individual employed or retained by Vale to determine by measurement and observation that the applicator fully complies with the requirements of this specification and of the coating system specification..0 CONFLICTS Any conflicts found between the requirements of this specification, the purchase documentation, the drawings, the paint system specification, the paint manufacturer s specifications and datasheets and the referenced standards shall be brought to the attention of the Owner at the pre-job meeting. 5.0 STANDARDS Unless specifically noted otherwise in this specification, the surface preparation, paint application and inspection shall be done in accordance with the latest revisions of the applicable following standards: CGSB Canadian Government Specification Board. SSPC The Society for Protective Coatings, Painting Manual, Volumes 1 & 2 SSPC SP-1 Solvent Cleaning SSPC-SP-2 Hand Tool Cleaning SSPC SP-3 Power Tool Cleaning NACE 1 White Metal Blast Cleaning SSPC SP-5

4 /1 NACE 2 SSPC SP-10 NACE 3 SSPC SP-6 NACE SSPC SP-7 NACE 5 SSPC SP-12 NACE 8 SSPC SP-1 SSPC SP-11 SSPC-TR-2 SSPC-PA-1 SSPC-PA-2 NACE RP0287 NACE SP0188 SSPC-PA Guide 10 SSPC-VIS 1 SSPC-VIS 3 SSPC-VIS NACE-VIS 7 Near-White Blast Cleaning Commercial Blast Cleaning Brush-Off Blast Cleaning Surface Preparation and cleaning of metals by WaterJetting prior to Recoating Industrial Blast Cleaning Power Tool Cleaning to bare metal Wet Abrasive Blast Cleaning Shop, field, and Maintenance Painting of steel Measurement of Dry Coating Thickness with Magnetic Gages Field Measurement of Surface Profile of Abrasive Blast-Cleaned Steel Surfaces Using a Replica Tape Discontinuity (Holiday) Testing of New Protective Coatings on Conductive Substrates Guide to Safety and Health Requirements for Industrial Painting projects Visual Standard for Abrasive Blast Cleaned Steel Visual Standard for Power and Hand Tool Cleaned Steel Visual Standard for Steel surfaces prepared by Waterjetting 6.0 PRE-JOB MEETING A pre-job meeting should be held prior to the beginning of every painting job. This meeting should be attended by the applicator, the inspector, the owner and the paint manufacturer. All the requirements of the job will be reviewed including but not limited to: Scope Safety Pre-Cleaning inspection Cleaning operations Application procedures Inspection (tools, method, and sequence) The drawings The purchase documents The referenced standards

5 5/1 The paint manufacturer s specifications and datasheets Applicator submittals Any difference in interpretation of the requirements shall be resolved at this meeting. 7.0 STORAGE AND HANDLING Store paint and materials in neat and clean-kept single area out of direct sunlight and at temperatures in accordance with the paint manufacturer s requirements. Perform mixing and preparation work in this area only. All paint and other additives shall be kept in the paint manufacturer s unopened original containers bearing the paint manufacturer s name and label. Store oily rags, waste and the like in covered receptacles during day and remove from site at conclusion of each day s work. Observe fire precautions. Provide carbon dioxide fire extinguisher of minimum 15 lbs. capacity in this area while used for paint storage. 8.0 SUBMITTALS If required by the Owner, a representative sample of each batch of all coatings used shall be collected and retained in accordance with ASTM D3925. Samples may be partial retains (250 ml to 1 liter) or complete and unopened containers. All samples shall be unmixed. Where multi-component coatings are used, separate samples of each component are required. Sample containers shall be labeled and clearly marked with details of the material, the date of sampling, the batch number and the identity of the person collecting the sample. Where possible, the date of manufacture shall also be recorded on the sample label. The samples, if requested, shall be submitted to the owner prior to the commencement of the paint job for future comparison analysis. 9.0 JOB CONDITIONS 9.1 ENVIRONMENTAL CONDITIONS Unless specified otherwise in the specification for paint system, the following environmental conditions shall be observed. The Ambient temperature, the paint materials temperature, the substrate temperature and the relative humidity shall be as recommended on the manufacturer s datasheet during the application and curing.

6 6/1 No painting or abrasive blasting shall be carried out unless substrate temperature is a minimum of 3 C above the dew point and the relative humidity is less than 75% unless recommended otherwise by the paint manufacturer. No abrasive blasting or painting shall be done on surfaces that will become wet before primer can be applied and reach its minimum recoat time. Under varying wind conditions, overspray on passing traffic may be a problem. The paint application shall be made to eliminate the possibility of vehicle, property, or personnel damage due to the overspray. The Owner reserves the right to stop work when wind condition is imminent. No abrasive blasting shall be done near wet or semi-wet paint. Grit impregnated coatings will not be accepted. Please note that for inorganic zinc primer, a minimum relative humidity is required to ensure the coating will achieve full cure (see manufacturer s datasheet). Steam or a light water mist may be required when dry conditions exist (see manufacturer s datasheet). 9.2 PROTECTION Do not paint over underwriter s labels, manufacturer s serial number plates and other identification plates, or hardware unless items already have a paint finish. Furnish sufficient drop cloths, shields and protective equipment to prevent spray or dropping from fouling surfaces not being painted. Post Wet Paint signs while work is in progress and drying. Post No Smoking signs where highly volatile materials are being used. Care shall be taken to protect equipment such as compressors, motors, blowers, etc. from damage from abrasive blasting and paint application SURFACE PREPARATION 10.1 NEW SURFACES (NEVER PREVIOUSLY PAINTED) Surfaces to be painted shall be free of grease, oil, chlorides, sulfates, nitrates and other contaminants. Contaminated surfaces shall be cleaned in accordance with SSPC-SP1. All welds shall be cleaned of rust, slag, and adherent mill scale, and all weld spatters shall be removed, in accordance with SSPC-SP2 or SSPC-SP3. Any fabrication defects that are located after cleaning has been done shall be corrected as necessary with the approval of the Owner. All surfaces that cannot be accessed after assembly, such as bolted connections, shall be blasted and painted prior to being assembled.

7 7/1 The air used for abrasive blasting shall be free of oil, water and other contaminants. A Blotter Test, per ASTM D285, shall be performed at least once a day at the blast nozzle or the spray gun. The degree of surface preparation (SSPC SP5, SP10, SP6, SP7, SP11, SP12, SP1) shall conform to the requirements set forth in the applicable paint system specification. If requested by the Owner, blast clean one 1ft x 1ft steel panel to the cleanliness and profile specified in the applicable paint system specification. Record distance of nozzle from panel, and angle of blast to establish procedures for blast cleaning. Measure surface profile in accordance with NACE RP0287. When the surface standard complies with all specified requirements, seal with a clearcoat protectant (e.g. Corothane 1 Preprime). Use the surface standard for comparison to abrasive blasted surfaces throughout the course of work. SSPC VIS 1 shall serve as the visual acceptance standard for the abrasive blasted panel. The blasted steel surface anchor profile shall meet the requirements of the coating manufacturer. The profile shall be measured in accordance with NACE RP0287. Three measurement per 100 ft2 shall be taken. All blasting dust and other residues shall be removed from the blasted surface by an adequate method such as vacuum brush with soft bristle, broom or blotter tested dry compressed air. An adequate method to check (such as white adhesive tape) if the blasted surface is free of dust shall be agreed upon at the pre-job meeting. Care must be taken not to contaminate the blasted surface with moisture or fingerprints. Blasted surfaces shall be primed before the prepared surface deteriorates to the point that it does not meet the requirements set forth in the applicable paint specification. As a minimum, the steel shall be blasted and primed the same day unless agreed in writing by the owner, the applicator and the coating manufacturer at the pre-job meeting. Surface preparation producing dust, grit and other detrimental substances shall not be done near Wet Paint surfaces PREVIOUSLY PAINTED SURFACES Previously painted surfaces shall be assessed for suitability to be recoated without an abrasive blasting surface preparation. If more than 25% of previous coating has failed, or if previous coating can be easily scraped off substrate, completely remove existing coating and prepare in accordance with 9.1 (New Surfaces).

8 8/1 For immersion service, previously coated surfaces shall be abrasive blasted in accordance with Section 9.1 of this standard (new Surfaces) If previously painted surface is deemed acceptable by the owner, the applicator and the paint manufacturer, a waterjet cleaning per Nace No 5 / SSPC-SP12 shall be done in lieu of abrasive blasting. The water pressure and the degree of cleaning achieved shall be agreed upon by the owner, the applicator and the paint manufacturer at the pre-job meeting. Local areas (<12 diam) exposing rusted bare metal, or small repairs shall be prepared as a minimum with power tools per SSPC-SP11. 3M Clean N Strip disk or 3M Heavy Duty Roto- Peen flap or an equivalent tool can be used. Large areas (> 12 diam) shall be abrasive blasted. Surface preparation producing dust, grit and other detrimental substances shall not be done near Wet Paint surfaces PAINT APPLICATION Paint application shall be done in accordance with SSPC PA-1. Paint shall be mixed using only full kit component. No partial kits allowed. Do not use any material (paint, thinner, additives, etc.), which has been stored beyond its shelf life or that has reached its pot life. Paint shall be mixed in accordance with the paint manufacturer s instruction. When multicomponent paint is used, each component shall be individually premixed to produce a smooth product of uniform consistency. If paints are thinned, it shall be done in accordance with the paint manufacturer s written instructions and only with the paint manufacturer s recommended thinner. Tinting of all types of coatings shall be performed in accordance with paint manufacturer s instructions. Each coat of paint should have a contrasting color to facilitate evaluation of proper coverage. The color of the penultimate coat shall be chosen to ensure that the final coat achieves adequate hiding power and provides a solid and consistent visual appearance. The final coat color shall be as specified in the project drawing or contract documentation. The first coat of paint shall be applied before the prepared steel surface deteriorates to the point that it does not meet the specified degree of cleanliness (SSPC SP5, SP10, SP6, SP7,

9 9/1 SP11, SP12, SP1). See Par of this Standard. If the surface has deteriorated, the appropriate surface preparation must be repeated. The paint shall be applied by a method (brush, roller, conventional spray, airless spray) approved by the paint manufacturer. The equipment used (brush, roller, spray gun, fluid tips, air caps, hoses, atomizing tips, etc.) shall meet the requirements of the paint manufacturer s datasheet. For outdoor projects, where windy conditions may exist, preference shall be given to the roller method. Every applied coat shall be a continuous and uniform film and be visually free of holidays, runs, orange peel, overspray, cobwebbing, cratering, fish eyes, blushing, uneven gloss, fading, wrinkling, blistering, pinholing, mud cracking, wrinkling, and other defects. If any such defect is identified, repairs shall be made in accordance of section 11.0 of this specification. Stripe coating shall be brush applied, before the full primer coat, on all crevices, welds, and sharp angles to prevent early failures in these areas. The stripe coat shall be touch dry prior to the application of the full primer coat. Be careful not to overwork the paint with too many strokes of the brush as this prevents building proper film thickness. Previous coat shall be within its overcoat interval (recoat window), taking into account ambient temperature and relative humidity, prior to application of subsequent coat. If a coat has elapsed its overcoat interval before being top-coated, it shall be prepared (re-activated, brush blast, etc.) in accordance with the paint manufacturer s instructions before receiving a subsequent coat. Shop painted surfaces shall be stored indoors until finish coat has cured sufficiently to move outdoors and be transported. Each coat shall be checked to ensure that it meets the dry film thickness specified in the Paint system specification. If the coating is applied too thin, an additional coat may be required. If the coating is applied too thick and that it is deemed to affect coating integrity by the paint manufacturer, the affected area shall be removed by blasting or mechanical tools and re-coated. Outdoor painted surfaces shall not be exposed to adverse climatic conditions until the finish coat has cured sufficiently. The paint manufacturer must issue recommended remediation methods (paint removal, etc.) in case the coating is exposed to rain prior to achieving minimum cure.

10 10/1 Painting of electrical items shall be done only under the direction of electrical personnel. The applicator shall give the owner and the inspector due notice and ample opportunity to inspect surfaces prior and after each coat of paint. Previously lettered objects shall be re-lettered where obscured during painting REPAIRS When defects are found by the owner, the inspector, the applicator or the paint manufacturer, these shall be repaired prior to the application of subsequent coat. A repair procedure shall be given in writing to the owner for approval prior to proceeding with the repairs. The repair procedure shall have been approved by the coating manufacturer prior to submitting it to the owner INSPECTION AND RECORDS All work shall be subject to inspection by the Owner. Acceptance of the work by the Owner or the Inspector, in no way, reduces the responsibility of the applicator to comply with all the requirements of this specification, drawing and other contractual requirements. The applicator shall comply with all the following inspection requirements and is responsible to take all the measurements necessary to meet these requirements. All inspection tools required shall be supplied by the applicator. Inspection tools shall include the following (substitutes must be approved by the owner): Surface thermometer Dry film thickness gauge and calibration standards Wet film thickness gauges Adhesion testing instrument Blotter test material Testex tape and anvil micrometer for surface profile measurement Salts detection kits Sling psychrometer with psychrometric tables SSPC VIS 1 visual standard Underwriters laboratories (UL) approved ultraviolet lamp. High voltage/low voltage holiday detector (for immersion service only).

11 11/1 The following inspection shall be done and properly recorded by the applicator (daily log sheet is shown in Appendix B) Surfaces shall be inspected for the presence of oils and grease using an ultraviolet lamp. Areas contaminated with oil and grease shall be located and recorded. The steel surface temperature shall be checked and recorded immediately before blasting and painting and also every hrs during blasting, painting, curing. The ambient temperature shall be checked and recorded immediately before blasting and painting and also every hrs during blasting, painting, curing. The dew point and relative humidity shall be checked and recorded immediately before blasting and painting and also every hrs during blasting, painting, curing. If required by the owner, samples of the abrasives used for blast cleaning shall be tested for oil and salt contamination in accordance with SSPC-AB1. Prior to abrasive blasting, the surface to be painted shall be checked for non-visible salts (chlorides, nitrates, sulfates) by testing with approved salt detection kits (e.g. Chlor*Rid International). Perform 3 equally spaced tests per 1000 ft2 of surface to be painted. The acceptance criteria are to be supplied by the paint manufacturer. If one or more reading exceeds the acceptance criteria, the contaminated surface shall be cleaned by an approved method (e.g. Chlor*Rid International). Once abrasive blasted, one random location shall be re-tested with the salt detection kits. A blotter test shall be performed in accordance with ASTM D285 at least once a day. The blasted steel angular profile shall be checked with Testex tape and an anvil micrometer per NACE RP0287. Perform 3 equally spaced tests per 10 m2 of surface to be painted. At least one test shall be done in the heat-affected zone of a weld. The amount of dust remaining on the abrasive blasted steel after vacuuming or compressed air blowing shall be checked by a method agreed at the pre-job meeting. The acceptance criteria shall be as determined by the coating manufacturer. The dry film thickness of each coat shall be determined in accordance with SSPC PA2. If required by the Owner, a 1ft x 1ft steel panel (additional to the one described in Par. Section 11.1 of this Standard) shall be cleaned, blasted, painted, left to cure at the

12 12/1 same time and location as the project being painted. When full cure is achieved, the paint system adhesion shall be checked with an approved adhesion-testing instrument. The adhesion shall be found within the requirements of the paint manufacturer s specifications. If the adhesion is found to be inadequate by the owner and the paint manufacturer, an adequate remediation procedure approved by the paint manufacturer shall be submitted to the owner for approval. When the coating/lining is to be used in immersion service, the entire coated area shall be tested for holiday with a low voltage or high voltage spark tester in accordance with NACE RP0188. Every holiday found shall be repaired per section APPENDICES Appendix A: Revision and Transition Notes Appendix B: Daily Log Sheet

13 13/1 Appendix A: Revision and Transition Notes (Revisions are listed in reverse chronological order with most recent revision at the top. Revision notes describe: what was changed, why it was changed, and the plan to implement the change, including whether changes are retroactive) Revision Added Appendix B Daily Log Sheet Revision 3 Reviewed 2015 No Changes Revision 2 Approved for use in Thompson, MB No changes. Revision 1 Document format and number changed due to Vale Engineering Document Program changes in Previous Standard number was Rev 3.

14 Appendix B - Daily Log APPLICATOR: PAINT MANUFACTURER: LOG N : EQUIPMENT NAME / NUMBER: DATE ISSUED: PAINT SPECIFICATION N : PAINT SYSTEM DESCRIPTION: ISSUED BY: P.O. : SURFACE PREPARATION SPECIFIED: TIME OF THE DAY AMB. TEMP. C: FINAL SURFACE PREPARATION APPROVAL SIGN AND DATE DATE & DESCRIPTION OF AREA PREPARED: SURFACE TEMP. C: DEW. POINT C: APPLICATOR MANUFACTURER REL. HUMIDITY % OWNER COAT N COLOR DATE TIME AMBIENT CONDITIONS TESTEX SURFACE PROFILE MEASUREMENTS AMB. TEMP SURF TEMP DEW POINT REL HUMID DRY FILM THICKNESS MEASUREMENTS (SSPC PA2) APPLIED COAT VISUAL APPROVAL: SIGN AND DATE APPLICATOR MANUFACTURER OWNER PAINT FILM THICKNESS APPROVAL SIGN AND DATE APPLICATOR MANUFACTURER OWNER REMARKS/HOLIDAY TESTING RESULTS: CORRECTIVE ACTIONS/REPAIR REQUIRED FINAL APPROVAL SIGN AND DATE APPLICATOR MANUFACTURER OWNER

1. Labels: Do not paint over UL, FMG, or other code-required labels or equipment name, identification, performance rating, or nomenclature plates.

1. Labels: Do not paint over UL, FMG, or other code-required labels or equipment name, identification, performance rating, or nomenclature plates. SECTION 09 9100 - PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply