Ngaa Nf Nppnt Ad 35683 Rev 0 Painting Procedure

8/17/2019 Ngaa Nf Nppnt Ad 35683 Rev 0 Painting Procedure

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TANK 5009 REVAMP PROJECT Rev. 0 NGAA‐NF‐NPPNT ‐AD‐35683 PO No: 4501076714Pa e 3 of 25 PAINTING PROCEDURE

REVISION MODIFICATION LOG

Revision Section Description

A All Issued for MPN Review and Approval

0 Nil Issued for Implementation


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TABLE OF CONTENTS

Section Description Page

No. No.

1.0 PURPOSE .................................................................................................................. 5

2.0 SCOPE ....................................................................................................................... 5

3.0 DEFINITION AND ABBREVIATION OF TERMS ...................................................... 5 4.0 REFERENCES ...................... ........................ ........................ ........................ ............. 5

5.0 RESPONSIBILITIES .................................................................................................. 6

5.1 CONSTRUCTION MANAGER .............................................................................. .................................. 6

5.2 QA/QC MANAGER ................................................................................................................................. 6

5.3 PAINTING INSPECTOR ......................................................................................................................... 6

5.4 SHE COORDINATOR ....................................... ........................................... ........................................... 6 6.0 PROCEDURE ............................................................................................................ 6

6.1 GENERAL ............................................................................................................................................... 6

6.2 ROOF, SHELL AND ACCESSORIES OF TANK EXTERNAL ........................................ ......................... 7

6.3 TANK INTERNAL ........................................ .......................................... .................................................. 7

6.4 COMMON ............................................................................................................................................... 7

6.5 COATING PROCEDURE TEST (CPT) ........................................................ ........................................... 8

7.0 COATING SYSTEMS ................................................................................................ 9

7.1 EXTERNAL TANK COATING SYSTEM: TANK SHELL, ROOF, PIPING/VALVES, STAIRWAYS AND STEELSUPPORTS. ........................................................................................................................................... 9

8.0 FIELD TOUCH–UP COATING SYSTEM ....................... ......................... ................. 11

8.1 GENERAL ............................................................................................................................................. 11

8.2 EXTERNAL TANK COATING SYSTEM: SHELL, ROOF, STAIRWAY, LADDER, HANDRAILS AND STEELSUPPORTS. ......................................................................................................................................... 12

8.3 TANK INTERNAL COATING SYSTEM ........................................ ............................................. ............ 12

8.4 MIXING, THINNING AND STORAGE .................................... ........................................... .................... 12

9.0 METHOD OF SPRAYING APPLICATION .............................................................. 13

10.0 INSPECTION REQUIREMENTS ............................................................................. 14


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1.0 PURPOSE

The purpose of this procedure is to ensure that painting and coating application complywith approved project specification, international standards and manufacturers’requirements.

2.0 SCOPE

This procedure covers the material, surface preparation, coating system; touch up,inspection and general standard requirements for the cleaning, blasting and painting ofTank 5009 External Roof and Shell, Tank Internal Bottom plates and Accessories,Piping and necessary facilities within the bundwall area.

3.0 DEFINITION AND ABBREVIATION OF TERMS

WFT: Wet Film Thickness

DFT: Dry Film Thickness

NACE: National Association of Corrosion Engineers

SSPC: Steel Structures Painting Council

WFT: Wet Film Thickness

DFT: Dry Film Thickness

4.0 REFERENCES

a) MPN GP: GP-56-02-03 Painting General Requirement – Onshore.b) Paint Manufacturer’s Technical Material Data Sheets (MTDS).c) Manufacturer’s Safety Data Sheet (MSDS).

d) SSPC-PA1 Shop, Field, and Maintenance Painting.e) SSPC-PA2 Measurement of Dry Coatings Thickness with Magnetic Gages.f) SSPC-SP2 Hand Tool Cleaning.g) SSPC-SP3 Power Tool Cleaning.h) SSPC-SP5 White Metal Blast Cleaning


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o) Any safety requirements mentioned in any of the references listed in theprocedures form part of the procedures and shall be implemented.

5.0 RESPONSIBILITIES

5.1 Construc tion Manager

a) It shall be the responsibility of the construction manager to ensure theimplementation of this procedure.

5.2 QA/QC Manager

a) The QA/QC Manager shall monitor the implementation of this procedure.

b) Responsible for the quality of the workmanship.

5.3 Painting Inspector

a) The Painting Inspector shall ensure the proper implementation of thisprocedure during blasting and painting activities

b) Perform on the job visual inspection and issue relevant reports and signedoff with MPN Representative.

5.4 SHE Coordinator

a) The SHE Coordinator shall be responsible for ensuring that all personnelinvolved in the blasting and painting aspect of the project implement thisprocedure in a safe manner and also using the appropriate PersonnelProtection Equipment (PPE).

6.0 PROCEDURE

6.1 General

Prior to blast cleaning, all visible oil, grease, wax, dirt, paint residues and foreignmatter shall be removed in accordance with SSPC SP1 – Solvent Cleaning andSSPC SP11– Power Tool Cleaning to bear metal. All surfaces to be blast cleanedshall be subject to inspection by MPN inspector prior to commencement of blast


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All parts of control valves, sight glasses, name plates etc. that are not to be blastedand painted, and are subject to damage from either the blast or the abrasivematerial shall be properly protected.

6.2 Roof, Shell and Accessor ies of tank external

Plate surfaces shall be rendered free of rust, mill scale, loosely adhering materials,paints, oxides, corrosion products and other foreign matter by near white blasting(SSPC – SP10 /NACE No.2 – Near White Blast Cleaning). Surface profile afterblasting will be measured with string micrometer or dial surface profile gaugeaccording to S/S-Sa 2 ½. Grit material as per MPN specification shall be used forblasting. The required blast profile achieved shall be in accordance with thecoating manufacturer’s requirements. Only MPN approved grit abrasive materialsshall be used. A test coupon has to be produced prior to start of the blasting andpainting program. The test plate shall be 125mm x 125mm x 6mm and should beblasted and coated within the same application parameters as the project.

6.3 Tank Internal

Grease, visible oil, soil and similar contaminant shall be removed by SolventCleaning method prior to blasting. Plate surfaces shall be rendered free of rust, millscale, loosely adhering materials, paints, oxides, corrosion products and otherforeign matter by White Metal Blast, (SSPC – SP5 /NACE No.1).

Grit material as per MPN specification shall be used for blasting.

The required blast profile achieved (Grade 3 – SSPC – SP5 /NACE No.1) shall bein accordance with the coating manufacturer requirements. Only MPN approvedgrit abrasive materials shall be used. A test coupon has to be produced prior tostart of the blasting operation of Tank Internal. The test plate shall be 125mm x125mm x 6mm and should be blasted and coated within the same applicationparameters as the project

6.4 Common

After blasting, traces or accumulations of spent residual abrasives that are evidentshall be removed by blow down by compressed air that is free of oil and water. Thesurface shall be inspected 15 minutes after blow down to assure that not resettledon the blasted surfaces. If dust has resettled blow down shall be repeated untildust is no longer evident. The degree of surface cleanliness shall be verified to


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Repairs, including 'step' masking. Intercoat techniques, including mist coating for silicate-type inorganic zinc and

recoat window refresher sweep blasting for epoxies.

7.0 COATING SYSTEMS

7.1 External Tank Coating System: Tank Shell, Roof, Piping/Valves, Stairways andSteel Support s.

Coating system specification shall be as GP 56-02-03 Appendix A

PRODUCT DESCRIPTION AND SPECIFIC DFT/Coat ( microns )As PER GP 56-02-03 APPROVEDVENDORS

AND PRODUCTS

PRIMER COAT 2nd Coat

(Intermediate) STRIPE COAT 3rd Coat Top Coat)

Zinc Rich Epoxy High Solids Epoxy High Solids Epoxy Aliphatic Polyurethane75-120 microns 130 - 200 microns 130 - 200 microns 40-75 microns

INTERNATIONAL Interzinc 52 Interseal 670 HS Interseal 670 HS Interthane 990

CARBOLINE Carbozinc 859 Carboguard 891 Carboguard 891 Carbothane134HG

JOTUN Barrier 80 Penguard Midcoat Penguard Midcoat Hard Top AS

Product M2 M2/Lt Microns Total/Lt Colour

Primer Coat

Sigma Zinc 109 14341 5.8 80 2473 Green

Thinner 91-92 5% 124

2nd Coat

Sigma Cover 456 14341 4.3 150 3335 Buff

Thinner 91-92 5% 167

Top Coat

Sigma Dur 550 14341 9.2 60 1560 RAL 7038

Thinner 21-06 5% 78Cleaner Thinner90-53

25% 1793


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Table A Paint VendorTANK EXTERNAL SURFACE

(As per GP 56-02-03 Appendix A Table A-1, A-2, Appendix B Table B-1 Section8.1.1)

Coat Layer Product Description Sigma

Primer Coat Organic Zinc – Rich Epoxy primerSigma Zinc 109 as per manufacturerrecommendation.

2nd Coat High solid surface tolerant epoxy SigmaCover 456 as per manufacturerrecommendation.

Top Coat Aliphatic Polyurethane Sigmadur 550 as per manufacturerrecommendation.

TANK INTERNALSCoating system shall be as per GP 56-02-03 Appendix A

Product M2 M2/Lt Microns Total/Lt Colour

PRIMER COAT

Sigma Phenguard 930Thinner 91-92

5995 6.6 100

5%

908

45

Maroon

2nd COAT

Sigma Phenguard 935 5995 6.6 100 908 Grey

Thinner 91-92 5% 45

TOP COAT

Sigma Phenguard 940 5995 6.6 100 908 Off-white

Thinner 91-92 5% 45

Cleaner Thinner 25% 681


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When the applied tank coating has been completed, a 100% "Holiday Test" shall be carriedout to all surface areas coated. The "Holiday Detector” shall comply with (STD NACE RP0188) and shall be of a type that will operate effectively with coating thickness of the specifiedcoating.

Check the coating system for holidays or discontinuities by using the Tinker-Rasor or anequivalent holiday detector. It should be a low-voltage type capable of detecting resistanceslower than 80,000 ohms.

Table B Paint Vendor

TANK INTERNAL SURFACE

Coat Layer Product Description Sigma Paint

Primer Coat High build Epoxy Phenolic Tank Lining Sigma Phenguard 930

2nd Coat High build Epoxy Phenolic Tank Lining Sigma Phenguard 935

Top Coat High build Epoxy Phenolic Tank Lining Sigma Phenguard 940

The Coating System is for surfaces operating at temperatures between ambientand 120°C (250°F).

8.0 FIELD TOUCH–UP COATING SYSTEM8.1 General

Field welding points and damaged areas shall be cleaned in accordance withmanufacturer product data sheet and painted, but if it is impossible to blast someareas, surface preparation shall be by Hand or Power tool to meet the specifiedprofile for both internal and external coating systems. MPN approval shall besought prior to carrying out this operation.

All weld seam residual flux shall be removed and excessively rough welding shallbe ground relatively smooth prior to blasting according to GP 56-02-03 section 7.1.

All welding and fabrication shall be completed prior to surface preparation. Beforespraying operation start all welding, nuts/bolts, internal & external nozzles shall bestripe coated.


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8.2 External Tank Coating Syst em: Shell, Roof, Stairway, Ladder, Handrails and SteelSupports.

Surface preparation shall be by specified standard of (GP 56-02-03 section 7.3)and coating systems as per Table A-2. If it is impossible to use this surfacepreparation standard, spot repair with power tool cleaning to (SSPC SP3) standardshall be used. MPN approval shall be sought prior to carrying out this operation.

Coating system shall be as follows:

Primer Coat Organic Zinc – Rich Epoxy primer Sigma Zinc 109

2nd Coat sur face tolerant epoxy SigmaCover 456(5483)

Top Coat Aliphatic Polyurethane Sigmadur 550(5523)

Coating system shall be as per GP 56-02-03 Appendix A-2

8.3 Tank Internal Coating System

Surface preparation shall be by specified standard of (GP 56-02-03 Appendix A, Table A-1, A-2 and Appendix B, Table B-1 Section 8.3.2).

Coating system shall be as follows:

Primer High build Epoxy Phenolic Tank Lining Sigma Phenguard 930

The Coating System is for surfaces operating at temperatures between ambient and120°C (250°F).

8.4 Mixing, Thinning and Storage

8.4.1 All containers of coating material shall remain unopened until

2nd Coat High buil d Epoxy Phenolic Tank Lining Sigma Phenguard 935

Top Coat High buil d Epoxy Phenolic Tank Lining Sigma Phenguard 940


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8.4.5 Induction time of paints after mixing shall be observed as per themanufacturer’s technical data sheet.

8.4.6 Thinning shall be as per manufacturer’s specification.

8.4.7 The QA/QC system for receiving materials, storage, and control andissuing shall be in accordance with approved Project Quality ControlProcedure (NGA-NF-QPZZZ-AD-31196) and Material ControlProcedure (NGA-NF-RPZZZ.AD31182).

9.0 METHOD OF SPRAYING APPLICATION

Tip sizes are as per manufacturer’s recommendation as shown below:

Primer Coat: 0.43 – 0.53 (17-21thou)

Second Coat: 0.45 – 0.58 (18-23thou)

Top Coat: 0.33 – 0.45 (13-18thou) and 0.53 – 0.68 (21-27thou) etc.

Pump ratio shall be at Minimum of (30:1psi), Maximum of 63:1psi

Spraying shall be by airless spraying method as recommended by the manufacturer. Atest panel will be produced for record and testing purposes. While coating, the wet film

must be smooth and at correct thickness. This will be achieved on testing panel prior tosite application. When spraying onto existing material there will be a minimum overlap of6 inches to cover any pitting or holidays by blasting to the existing coating.

High-pressure fluid line rating shall be a minimum of (176kg/cm2 – 2500psi) andmaximum of (378kg/cm2 – 5000psi). Fluid lines rating will be made visible on spray linestated and stamped on the line-walls for verification.

Repairs to surfaces shall be in accordance with SP 3 cleaning method (if acceptable toMPN). Over blast shall be prevented to avoid causing more damage to the alreadycoated surfaces. The edges of the surrounding areas shall be well feathered beforeindividual coating is applied.


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such as oil or grease on the primer or intermediate coat is to be solvent cleaned prior tothe application of the next coat.

Solvent wash shall comply with SSPC SP 1 Standard.

9.2 Repairs will be carried out on coatings with the following methods.

If the damage is down to the base metal the area will be blasted or power brushed towithin specification (if acceptable to MPN and shall be in accordance with therecommendations of the paint manufacturer) and the area around shall be feathered backto tightly achieve paint.

All surface areas should be washed down with fresh water to remove excess salts. As PerGP 56-02-03, Section 7.1.6 and Table1.

10.0 INSPECTION REQUIREMENTS

10.1 Painting Inspector passes on the data sheets, in which the application criteria are defined,to the persons responsible for paint application.

Contractor Painting Inspector shall monitor all blasting and painting operations, mixinginduction time, pot life of the mixed paint and application of paint. Measurement of WetFilm Thickness and Dry Film Thickness and shall perform and ensure that the appliedpaint or coating meet the requirement of the specification and this procedure.

Contractor Painting Inspector to give MPN 24 hour notification prior to daily site

Inspection.

The data sheets define in particular:

Pot life of mixed paint

Minimum/Maximum over coating times

Method of application and indicator time.

10.2 Surface preparation shall be carried out in accordance with each individual coatingsystem Surface to be treated shall be free from oil or grease before any further action


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The painting inspector shall perform a visual check ensuring that the surface is clean andalso that the existing paint is sound and ready to receive the subsequent coat following theguidelines within Sections 8.3.1, and 8.4.3.

Internal Coatings / Lining shall be tested and holiday free, test voltage shall be as per therecommendations of NACE STD RP 0188. Any holidays found should be recorded /repaired and re-tested.

Table 1 – Guidelines for inspect ion of surface to be coated

Parameters measured orchecked

Cleanliness, Surface condition, burrs etc. as per SSPC VIS1surface profile as per SSPC Volume 1

All Equipment / MeansE.g. Replica tape, depth micrometer (to establish profile depth) as perSSPC SP10 and SSPC SP11Test for cleanliness (with clean cloth)

Frequency of InspectionOn release and before work begins.(Climatic condition taken every 2 hours)

Measurement Zone All Zones and surfaces to be treated. Acceptance Criteria As per stipulations in contract specifications.Records Required Substrate acceptance sheets.Inspection By QC Inspector

10.3 The dry film thickness and the wet film thickness (guide to application by spray painter to

achieve required dry film thickness) as defined in SSPC PA2 shall be measured regularly.The final report shall include the result of this inspection.

Table 2 – Guidelines for Dry Film Thickness Inspection

Parameters measured or checked Microns / Mils

All Equipment / Means Magnetic gauge (Test for metallic substrates)

Inspection In accordance with specification SSPC PA2

Measurement Zone Each unit area (m2) as per SSPC PA2

Acceptance Criteria In accordance with specification


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Holiday Detector

Dew Point Gauge

Hygrometer

Steel Temperature Gauge

Surface Profile Gauge

Hypodermic Needle GaugeSurface Comparator Device

10.5 Inspection on tools shall be carried out prior to use.

NOTE: ONLY MPN APPROVED EQUIPMENT AND TOOLS SHALL BEUSED. CALIBRATION CERTIFICATES WILL BE SUBMITTED.

11.0 GENERAL REQUIREMENTS (AS PER GP 56-02-03)

11.1 Blasting / Coating of any surface shall not proceed when any of the followingenvironmental conditions exist.

a) When the relative humidity is greater than 85% in work area.b) When the surface temperature or air temperature is less than 3 0C (37.4 0F)

above dew point.c) When the atmosphere temperature is below 10 0C (50 0F) or moisture orother detrimental surface contamination is evident on the surface to beblasted, primed or over coated.

11.2 A list of all inspected equipment complete with calibration certificates and paint should besubmitted prior to mobilization for approval.

11.3 Power Wash Units will be as per SSPC-SP12.

11.4 After painting/during operations the floor area and the manway will be protected usingpolythene sheets.


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11.20 Mixing of the paints shall be as per manufacturer instructions.

11.21 Safety of the paints shall be as per MPN requirements and SSPC PA Guide 3.

11.22 A 300mm (12”) wide strip of uncoated, blasted surface shall be left between coated andunblasted surfaces to prevent damage to the newly dried coating, when additionalblasting is done. After blast cleaning has resumed, the strip of the previous blastedsurface shall require only a light sweep blast to remove any remaining rust.

12.0 EQUIPMENT LIST

The following equipment as listed bellow will be utilized during the painting operations forTank 5009 Project. There may in the event be other equipment required to complete thepainting.

Air compressors (1300, 825, 375 & 750cfm) 3 Safety signs ManyGas detectors 2 Fire extinguishers 20Sand pots/Blasting Units 4 Air receiver 2Industrial Vacuum Cleaner 1 Chemical respirators 306” sludge pumps 1 Tarpaulin 54” sludge pumps 1 Sky lift (Climber) 2Steam cleaning machine 1 20’ containers (STORAGE + TOILET) 224” Extractor fans 4 20’ containers (OFFICES) 2Portable radios (Motorola GP 340) 12 Office caravan 2Spark proof lights 10 Pick-up vans – HILUX 1Electrical stirrer 2 Self-loading truck 1First aid unit 2 Staff Busses 2Safety harnesses 10 Scaffold PlatformsSand Blaster’s’ hood/breathing system 4 Airless spray machine’sDeadmans Handles 4 Graco King - 60-1 2Whip Check Arrestors 12+ President – 30-1 1BA Equipment (if required) 4 Clemco – 60-1 1Hydrant hoses 10

NOTES: All hoses and airlines shall have maximum pressure of (7.0kg/cm2) indications of pressure

gauge from compressed air.Standard PPE (Overalls, Gloves, Hard Hat, and Safety Boots & Glasses) shall be worn at alltimes on the project.


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PAINTING REPAIR PROCEDURE

Repairs to be in accordance with min imum requir ements as indicated in

GP 56=02=03 Section 10

1. Segregate the materials on the storage stack as required for proper checking / painting accessto the painted surfaces.

2. Check / Measure the painted surfaces of the plates / structure to identify the areas with low DFT(Dry Film Thickness) by using a calibrated DFT gauge. Areas to be marked as required in case

of localized thin areas.3. Rub down / roughen all surfaces that will require additional coat of paint using emery cloth toremove all paint dry spray, contaminants and to provide good inter-coat adhesion. NOTE: Thinareas showing rust on the surface shall be spot blasted to SSPC SP 5 .

4. Fresh water wash / Air blow the surfaces to remove all dust and other contaminants on thesurfaces to be painted. Fresh water for this operation shall be defined as potable water with amaximum PH of 8, which has no more than 200 ppm TDS and 50ppm chlorides.

5. Mixing of paint shall be as per paint manufacturer’ recommendation; care shall be taken in themixing of the paint and addition of thinners to the mixed paint.

6. Apply paint using manufacturer recommended procedure. Equipment coating capacity shouldbe followed to avoid excessive dry spray on the paint film. Applied Wet Film Thickness (WFT)should be monitored to avoid excessive paint build up during paint application.

7. After the paint is dry, DFT readings shall be taken to confirm that the coating thicknessconforms to the requirements of the paint manufacturer / procedure.

NOTE: Care should be taken to ensure that the paint film is d ry and hard to the touch to

avoid mechanical handling damages during re-stacking.

14.0 ATTACHMENTS

Paint Material Technical Data

MSDS, paint, thinner / cleaner materials.

Grit Material Data

MSDS, Certificate for Grit

Daily Blasting & Coating Inspection Report Form


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Paint Material Technical Data


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MSDS, Paint, Thinner / Cleaner Materials.


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Grit Material Data


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MSDS, Certificate for Grit

Daily Painting Activities ReportContractor: Facility: Date:Location: Project: Area:


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Abras iv e Type Size Standard Achieved Surface Profile

SP 5 Y NSSPC 10or SA2½

Y N SP6 Y N

HAND TOOL / POWER CLEANINGType Tools Used Standard Achieved Yes No

Power Tool SSPC SP3Hand Tool SSPC SP2

COATING APPLICATIONCoatingSystem

ProductName

Thinner Manufacturer Batch No Time of Application

WFT DFT v. DFT A B Start Stop

1 st Coat(Primer)2nd Coat(Intermediate)

3 rd CoatTop Coat)

METHOD OF APPLICATION Airless Spray Conventional Spray Brush Roller Mitt

REMARKS

Company Nestoil MPN

Name

Sign & Date


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TANK 5009 REVAMP PROJECT Rev. 0 NGAA‐NF‐NPPNT ‐AD‐35683 PO No: 4501076714Page 24 of 25 PAINTING PROCEDURE

NESTOILLIMITED

Daily Blasting & Coating Inspection Report FormCRUDE/CONDENSATE STORAGE & SETTLING TANK REVAMP (CSTR) PROJECT-TANK 5009

CONTRACT NO: A2139813

DATE:REPORT NO.:

EQUIPMENT/ITEM DESCRIPTION:LOCATION: Q I T

AM PM AM PM

⁰ C ⁰ C SurfaceTemp.⁰ C ⁰ C Air Temp.

AM PM AM PM

% % RelativeHumidity⁰ C ⁰ C Dew Point

NESTOIL QCINSP.

MPNINSPECTOR

SURFACE PREPARATION AND ABRASIVES USED:

COAT NAME OF COATING PRODUCT AND BATCH NUMBER A = Resin B = Curing Agent

NO. APPLI-CATIONS

DATE & TIME APPLIED

CUMULATIVED FT

NESTOIL QCINSP.

MPNINSPECTOR

PRIMER(1 st Coat)

A

B

INTERMEDIATECOAT(2 nd Coat)

A

B

TOP COAT(3 rd Coat)

A

B

SPECIFIC PROBLEMS ENCOUNTERED? EXPLAIN CAUSES/SOLUTIONS:

COMMENTS:


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TANK 5009 REVAMP PROJECT Rev. 0 NGAA‐NF‐NPPNT ‐AD‐35683 PO No: 4501076714Page 25 of 25 PAINTING PROCEDURE

FOR: Nestoil-------------------------------------- FOR: MPN---------------------------Sign / Date:--------------------------------------------- Sign / Date:-----------------------------------

Ngaa Nf Nppnt Ad 35683 Rev 0 Painting Procedure

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