RGT0-2 Samsung LNG Paint Specification

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 2 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

RECORD OF REVISIONS Rev.

Issue Date

Description of Change

B

25 Feb 2015

IDC

A

4 Feb 2015

IDC

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 3 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

CONTENTS

1.0 SCOPE

5

2.0 DEFINITIONS AND KEY WORDS

6

3.0 NORMATIVE REFERENCES

7

3.1

CODES AND STANDARDS

7

3.2

PROJECT SPECIFICATIONS, DRAWINGS AND PROCEDURES

8

3.3

PETRONAS GAS BERHAD (PGB) PROCEDURES/SPECIFICATIONS

8

4.0 COATINGS REQUIREMENTS

8

5.0 ENVIRONMENTAL DATA

9

6.0 PERSONNEL QUALIFICATIONS

9

6.1

QUALIFICATION OF BLASTERS

9

6.2

QUALIFICATION OF COATING OPERATORS

9

6.3

QUALIFICATION OF PFP APPLICATORS

9

6.4

QUALIFICATION OF SUPERVISORS AND QC PERSONNEL

10

7.0 PRE-QUALIFICATION OF COATINGS AND PFP

10

7.1

DURABILITY

10

7.2

TEST: ISO 1519 (CYLINDRICAL MANDREL BEND TEST)

10

7.3

TEST: ASTM D522

11

8.0 TANK COATING REQUIREMENTS INDEX

11

8.1

11

TABLE 1 COATING REQUIREMENTS INDEX

9.0 COATING SYSTEMS

16

9.1

SYSTEM 1 - MILL APPLIED PREFABRICATION PRIMER – FERRITIC MATERIALS

16

9.2

SYSTEM 2 – FABRICATION SHOP/SITE APPLIED PRIMER – FERRITIC MATERIALS 16

9.3

SYSTEM 3 – HOLDING PRIMER – AUSTENITIC STAINLESS STEELS

16

9.4

SYSTEM 4 – FULL SYSTEM REQUIREMENTS – FERRITIC MATERIALS

17

9.5

SYSTEM 5 – FULL SYSTEM REQUIREMENTS - AUSTENITIC STAINLESS STEELS 17

9.6

SYSTEM 6 GALVANISING

17

9.7

SYSTEM 7 – PAINTING OF GALVANISED SURFACES

17

10.0 SURFACE PREPERATION – GENERAL REQUIREMENTS

17

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 4 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

10.1 PREPARATION FOR BLASTING

18

10.2 ABRASIVE BLASTING

18

11.0 PAINTING GENERAL REQUIREMENTS

19

11.1 APPLICATION REQUIREMNTS

19

12.0 INSPECTION

20

13.0 REPAIR OF COATING

21

14.0 SAFETY

21

14.1 PROTECTION AND PRESERVATION DURING SHIPMENT

22

15.0 COLOUR CODE AND IDENTIFICATION

22

15.1 COLOUR CODES (SCHEMES)

22

15.2 SAFETY COLOUR CODING

23

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 5 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

1.0

SCOPE This document defines the minimum requirements for the surface preparation and painting of materials for use within the tank envelope during construction of the LNG Storage Tanks. The document covers surface preparation, application of paint materials, inspection and required test documentation of both shop applied and site applied coatings. This specification is based on the requirement for the appointed Vendor to have and effective and audited QMS conforming to ISO 9001 in place for the duration of the order. All such procedures shall be suitable for the environmental conditions and handling facilities available at the workface. Protection and preservation of primed tank materials at site prior to, during and erection, forms an essential part of this document.

after

Where Passive Fire Protection (PFP) is required, bare steels shall be treated in accordance with the requirements of this document for surface preparation and priming prior to the application of the PFP coating system. For pre-primed steel surfaces, the requirements for the supply and application of the PFP coating system shall be in accordance with RGT2-SCT-MEC-SPN-020-7050 .

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 6 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

2.0

DEFINITIONS AND KEY WORDS PROJECT

Engineering, Procurement, Construction and Commissioning (EPCC) of the Liquefied Natural Gas (LNG) Regasification Facilities at Pengerang, Johor (RGT2-Terminal) Project

EPCC

Engineering, Procurement, Construction and Commissioning

OWNER

PETRONAS Gas Berhad (PGB)

CONTRACTOR

The party that engineers, procures, installs and commissions the equipment and perform duties specified by the OWNER - Samsung C&T (EPCC Contractor) SAMSUNG C & T/Whessoe Engineering/STS

BUYER

Term used in material requisitions to designate responsible party for placing the purchase order for procurement of materials

SUPPLIER

Any and all persons, firms, partnerships, companies, bodies, entities or a combination thereof including - Subsuppliers who are providing Equipment and Material specified by BUYER. Term used in material requisitions to designate responsible party providing materials

PFP

Passive Fireproof Protection

FROSIO

Faglig Råd for Opplæring og Sertifisering av InspectØrer innen Overflatebehandlingsfagene

NACE

National Association of Corrosion Engineers

ASTM

American Society for Testing and Materials

APAS AS/NZS

Australian Paint Approval Scheme Australian/New Zealand Standards

DFT

Dry Film Thickness

WFT

Wet Film Thickness

NDT

Non Destructive Testing

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 7 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

3.0 3.1

NORMATIVE REFERENCES CODES AND STANDARDS EN ISO 14620

Design and manufacture of site built, vertical, cylindrical, flat bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and -165°C

EN ISO 8501

Preparation of Steel Substrates before Application of Paints and Related Products – Visual assessment of surface cleanliness

EN ISO 8502

Preparation of Steel Substrates before Application of Paints and Related Products – Test Methods to assess substrate cleanliness

EN ISO 8503

Preparation of Steel Substrates before Application of Paints and Related Products – Surface Roughness Characteristics

EN ISO 8504

Preparation of Steel Substrates before Application of Paints and Related Products – Surface Preparation Methods

EN ISO 12944

Paints and Varnishes – Corrosion Protection of Steel Structures by Protective Paint Systems

BS EN ISO 1461

Hot dip galvanized coatings on fabricated iron and steel articles. Specifications and test methods

ASTM A 123

Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM D 4285

Standard Test Method for Indicating Oil or Water in Compressed Air

BS 4800

Schedule of Paint Colours for Building Purposes

BS 5493: 1977

Code of practice for protection of iron and steel structures against corrosion

NORSOK M 501

Surface Preparation and Protective Coating

SSPC‐SP 1: 1982

Solvent Cleaning

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 8 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

SSPC‐SP 11: 1987

Power tool cleaning to Bare Metal

ASTM D522

Mandrel Bend Test of attached Organic Coatings” Conical Mandrel Test

APAS AS/NZS 1580

1580 Method Paints and related Materials

Note: The latest revision of all documents at the time of order placement refers. Note: Where considered as appropriate by the client similar documents/specifications produced by the Steel Structures Painting Council or NACE may be used to access material preparation and cleanliness. 3.2

PROJECT SPECIFICATIONS, DRAWINGS AND PROCEDURES RGT2-SCT-MEC-SPN-020-0050

3.3

4.0

Passive Fire Protection Specification

PETRONAS GAS BERHAD (PGB) PROCEDURES/SPECIFICATIONS RGT2-PMT-MCI-SPN-000-0001

General Specification for Painting

PTS 30.46.00.31

Thermal Insulation (amendments/supplement to the CINI Manual “Insulation for Industries”)

PTS 30.48.00.31-P

Painting and Coating of New Equipment

COATINGS REQUIREMENTS All coatings used for corrosion protection on the plant shall be designed to have a high durability, as defined in BS EN ISO 12944:1998, in the exposure conditions. The lifetime to first major maintenance of all protective coating systems shall be 15 years from the date of acceptance of the plant. All coating systems shall be applied strictly in accordance with the requirements of any Certification Authority where applicable, the manufacturers Product Data Sheets, the contents of this specification and to meet any of its listed technical requirements. The Vendor (contractor) shall highlight any areas where he considers that these requirements cannot be satisfied. All coating materials, including passive fire protection, whether shop (including prefabrication primers) or site applied, shall originate from a single coating manufacturer to ensure single point responsibility. Design and specification of all coating systems shall take full account of the environmental and conditions pertaining to the site.

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 9 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

5.0

ENVIRONMENTAL DATA The painting and coating materials shall be suitable for application and be able to withstand and operate continuously in the following environmental conditions:

6.0 6.1

Average Ambient Air Temperature

28 deg C (max:40 deg C)

Average Relative Humidity

87% (max100%)

Max. Wind Velocity

30.6 m/s

Max. Hourly Rainfall Rate

98.77 mm

Max. Vibration Speed Expected

0.4mm/s (RMS)

Average Barometric Pressure

1.018 bara

PERSONNEL QUALIFICATIONS QUALIFICATION OF BLASTERS All personnel employed in abrasive blast cleaning operations shall be suitably trained and experienced and be capable of producing consistently the required surface profiles and blasting standards on representative structural steel surfaces.

6.2

QUALIFICATION OF COATING OPERATORS The personnel shall have relevant knowledge of health and safety hazard, use of protection equipment, coating materials, mixing and thinning of coatings, coating pot‐ life, surface requirements, etc. The acceptance criteria are the requirements of the visual and non‐destructive inspection of the coating system described in this document. Variation in the film thickness shall be within the limits described in this Specification and the Coating System Data Sheet as supplied by the coating manufacture

6.3

QUALIFICATION OF PFP APPLICATORS Only vendors trained and approved to apply PFP by the coating manufacturer are to be used. Verification of this documentation is required for approval by the client. All individual applicators should have suitably trained and have experience in the PFP to be applied. All individual applicators must be able to produce up to date documentation of competence in applying the PFP for approval by the client and verification of authenticity by the coatings supplier.

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 10 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

6.4

QUALIFICATION OF SUPERVISORS AND QC PERSONNEL Personnel carrying out inspection or verification shall be qualified to a minimum level of NACE (Level II) Coating Inspection Technicians course, FROSIO or equivalent Employer accepted course. Supervisors shall be qualified as Inspector in accordance with NACE (Level II), FROSIO or equivalent Employer accepted qualification. QC Inspection Personnel shall possess a current eye test certificate with a minimum requirement of “Jaeger 2” print size (or equivalent) at 300 mm. Verified copies of all inspection personnel’s qualifications shall be submitted to Client for review and approval before commencement of work to the requirements of this document.

7.0

PRE-QUALIFICATION OF COATINGS AND PFP After blasting, the plates shall be coated with a suitable low zinc silicate primer. Coat thickness shall be restricted to 15 – 20 microns maximum or alternatively the Mill can apply one (1) coat of pre-construction wash primer to protect the blasted surfaces whilst in transit or storage. Plate edges over a band width of 70mm shall be coated with a weldable primer compatible with the main primer (unless it can be demonstrated that the main primer is weldable). Vendor shall supply paint data sheets. In the case of Mill applied pre-construction wash primer this shall be completely removed from the weld preparation area over a band width of 70mm. NOTE: For the two pack acrylic polysiloxane finish the following minimum requirements should be met;

7.1

DURABILITY This specification requires a top coat that will provide minimum gloss retention of 80% of the original after 5000 hours of QUVA. Long Term Flexibility is an important measure of how well coating ages. It is essential for a coating, if it is to maintain its integrity to demonstrate long term flexibility. Poor flexibility can be linked to cracking and breakdown at stress points e.g welds, edges. Testing after prolonged exposure for periods of up to 2 years is preferred.

7.2

TEST: ISO 1519 (CYLINDRICAL MANDREL BEND TEST) Polysiloxane applied to a panel and aged in an ISO12944 C5I environment for 6 months. Result - No cracking/disbondment on a 12.7 mm (1/2 inch) mandrel.

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 11 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

7.3

TEST: ASTM D522 Data on “Mandrel Bend Test of attached Organic Coating” Conical Mandrel test” throughout prolonged exposure periods is required. • • • •

8.0

Test Data on 3 point bend tests is required for deflections up to 25 mm APAS AS/NZS 1580 Method Passive Fire Protection Test Data on Passive Fire Protection for Cryogenic Situations

TANK COATING REQUIREMENTS INDEX Tank components that require coating or corrosive protection are specified in Table 1. Each Coating System required is individually defined in Section 8.0 of this document. For more details refer to Figure 1 below.

8.1

TABLE 1 COATING REQUIREMENTS INDEX

NUMBER

1

ITEM

LOCATION

MATERIAL

COATING SYSTEM

Inner Tank Holding Down Strap

Tank interspace and tank base

Stainless

Inner/Outer Tank Holding Down Strap

Tank interspace and tank base

Carbon Steel

System 1 or 2

Outer tank plate (Vapour barrier)

Shell , bottom and Annular

Carbon Steel

System 1 or 2

4

Inner tank bottom plates

Inner tank

9% Ni Steel

System 1

5

Inner tank annular plates

Inner tank

9% Ni Steel

System 1

6

Shell plates

Inner tank

9% Ni Steel

7

Shell stiffeners

Inner tank

9% Ni Steel

System 1

8

Shell attachments

Inner tank

9% Ni Steel

System 1

9

Internal runway beam

Roof interspace

Carbon Steel Structure

System 1 or 2

2

3

REMARKS

System 3

Steel

See note 2

See note 1

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 12 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

10

Roof centre ring

Outer tank roof

Carbon Steel Structure

System 1 or 2

See note 2

11

Roof purlins

Outer tank roof

Carbon Steel Structure

System 1 or 2

12

Roof plates

Outer tank roof

Carbon Steel Structure

System 1

13

Roof compression ring

Outer tank roof

Carbon Steel

System 1

14

Roof nozzles and manholes

Outer tank roof

Carbon Steel

System 2 + 4 outer surface

See note 2

15

Roof nozzles and Heatbreak – Outer surface

Outer tank roof

Carbon Steel and Stainless Steel

System 2 + 4 outer surface

See note 2

16

Shell plates Wall vapour barriers and embedment’s

Outer tank shell plates

Carbon Steel

system 1

See note 2

17

Suspended deck assembly

Outer tank

Aluminium

Not required

See note 5

18

Suspended deck hangers, outer tank earthing lugs

Outer tank

Stainless Steel

Not required

See note 5

Table 1 continued

See note 2

system 3 + 5 outer surface

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 13 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

NUMBER

ITEM

LOCATION

MATERIAL

COATING SYSTEM

REMARK S

19

Internal stairway, ladders or platforms/sus pended deck walkway

Inside inner tank

Aluminum and Stainless Steel

Not required

See note 5

20

Internal pipework

Inside inner tank and in tank interspace

Stainless Steel

Not required

See note 5

21

Pump columns

Inner tank

Stainless Steel

Not required

22

Outer tank concrete surface

Outer tank roof

Not required

Not required

23

Internal pipe support

Inner tank

Stainless steel

Not required

24

Horizontal Embedment plate

Inner tank

Not required

Not required

N/A

External pipework insulated

Outside tank

Carbon Steel

As per project terminal painting specification

Stainless Steel N/A

External pipework uninsulated

Outside tank

Carbon Steel Stainless Steel

As per project terminal painting specification

N/A

Tank wall pipe support frames

Outside tank

Carbon Steel

As per project terminal painting specification

See note 3

N/A

External walkways, handrails & platforms

Outside tank

Carbon Steel

As per project terminal painting specification

See note 6

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 14 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

Table 1 continued ITEM

LOCATION

MATERIAL

COATING SYSTEM

REMARKS

Tank roof platform support structures

Outside tank

Carbon Steel

As per project terminal painting specification

See note 3

Pump crane support structures

Outside tank

Carbon Steel

As per project terminal painting specification

See note 3

Pipe supports non-cryogenic

Outside tank

Carbon Steel

As per project terminal painting specification

See note 3

Pipe supports cryogenic

Outside tank

Stainless Steel

As per project terminal painting specification

External runway beam

Outside tank

Carbon Steel

As per project terminal painting specification

Valves

Outside tank

Various

As per project terminal painting specification

See note 5

NOTES: 1) Where application of the PFP coating system is required, steel surfaces shall be treated in accordance with System 2 before application of the PFP coating. 2) If the Stainless materials are left un-primed then they need to be stored and transported under cover to ensure the absence of salts. 3)

Needs to be correctly stored at site

4)

Handrails may be over coated with safety colour if required

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 15 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

Figure 1 Tank Components in reference to table 1

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9.0

COATING SYSTEMS General requirements for surface preparation and painting (as detailed in document number RGT2-PMT-MCI-SPN-000-0001 section 4.0 and section 5.0 respectively) shall be applied to all systems. Data sheets for all materials must be provided for Client review and approval prior to use.

9.1

SYSTEM 1 - MILL APPLIED PREFABRICATION PRIMER – FERRITIC MATERIALS Shot blast through automatic plant to Sa 2.5 requirements (BS EN ISO 8501-1:1988). Apply one coat of pre-construction wash primer and coat thickness shall be restricted to 15-20 microns (DFT) maximum. Apply one (1) coat of two pack inorganic zinc silicate weldable prefabrication primer with average Dry Film Thickness (DFT) 20 ±5µm. The primer must provide protection even after heating up to 800 degrees C and be resistant to damage caused by welding, gas cutting and fairing.

9.2

SYSTEM 2 – FABRICATION SHOP/SITE APPLIED PRIMER – FERRITIC MATERIALS Blast to SA 2.5 requirements (BS EN ISO 8501-1:1988) with an angular profile of 50– 75µm Apply one (1) coat of “rapid cure epoxy zinc phosphate/MIO primer” with a Dry Film Thickness (DFT) of 75 microns. Where application of the PFP coating system is required, the primer used shall be compatible with the PFP coating system and from the same supplier to ensure single point responsibility. Primer compatibility shall be confirmed by the supplier / manufacturer of the PFP coating system prior to application. When PFP is applied the maximum overlap DFT on the rapid cure zinc phosphate/MIO primer must be in accordance with the PFP supplier’s application guidelines.

9.3

SYSTEM 3 – HOLDING PRIMER – AUSTENITIC STAINLESS STEELS Sweep blast to SA2.5 with non-metallic and chloride free grit to obtain an anchor profile of approximately 25 - 85 microns as specified in Norsok M 501 Coating System 6. Apply one (1) coat of 2 pack epoxy primer (zinc free) with average Dry Film Thickness (DFT) 35µm, primer to have an extended maximum over-coating interval. Where application of the PFP coating system is required, the primer used shall be compatible with the PFP coating system and from the same supplier to ensure single point responsibility. Primer compatibility shall be confirmed by the supplier / manufacturer of the PFP coating system prior to application with the maximum allowable DFT for overlap areas.

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 17 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

9.4

SYSTEM 4 – FULL SYSTEM REQUIREMENTS – FERRITIC MATERIALS Primer (System 1 or 2) stays in-situ. If necessary surfaces to be high pressure fresh water washed/abraded to remove all traces of general dirt and grime and any other contamination prior to painting. Damaged surfaces to be locally blast cleaned to SA 2.5 or mechanically cleaned to a minimum St 3, if approved by the client. Touch up blasted and abraded areas with one (1) coat of 2 pack epoxy surface tolerant aluminium with a Dry Film Thickness (DFT) of 75-100µm. Apply one intermediate coat of surface tolerant aluminium epoxy at 125 microns DFT. Apply one finish coat of 2 pack gloss acrylic polysiloxane at 125 microns DFT.

9.5

SYSTEM 5 – FULL SYSTEM REQUIREMENTS - AUSTENITIC STAINLESS STEELS Primer (System 3) stays in-situ and is made good to original DFT requirements. Damaged surfaces to be mechanically cleaned to System 3 requirements, remaining surfaces to be pressure washed and abraded to remove general dirt and grime prior to repainting. Reapply primer to abraded areas. Apply one (1) coat of 2 pack acrylic polysiloxane at 125 microns DFT.

9.6

SYSTEM 6 GALVANISING Prepare surfaces by pickling or shot blasting to Sa 2.5 requirements. Note that all paint markings / grease / oils or excessive rust shall be removed. Welds shall be smooth and free from slag / spatter and have all sharp edges dressed. Hot dip galvanise to BS EN ISO 1461 or ASTM 123 requirements to achieve minimum coating thickness in accordance with Table 1 of ASTM A123, i.e. for material over 6.4mm thick required thickness is 100µm (709 g/m2).

9.7

SYSTEM 7 – PAINTING OF GALVANISED SURFACES NOTE: This system is only required when necessary for colour coding. Prepare surface by chemical etching using a mordant wash. As per RGT2-PMT-MCI-SPN-000-0001, zinc rich epoxy primer (40 micros DFT) and High build aliphatic polyurethane DFT (100 microns) are to be applied.

10.0 SURFACE PREPERATION – GENERAL REQUIREMENTS Reference to specifications EN ISO -8501 / -8502 / -8503 + -8504.

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10.1 PREPARATION FOR BLASTING All welds shall be relatively smooth, without sharp edges and free of weld slag and spatter prior to blasting. Sharp edges of steel sections shall be used to ensure adequate primer adhesion. Where necessary, oil / grease and NDT residues shall be removed by the use of suitable high flash point solvents or, preferably by high pressure water jetting / steam cleaning. Stainless steel shall be degreased using suitable chloride free solvents. Surfaces / material components not requiring blasting shall be suitably protected or removed from the items to be blast cleaned. Internal surfaces of pipes / equipment, machined surfaces and gasket contact surfaces shall be protected by applying plates / tapes etc. Stainless steel and high alloy materials forming parts of equipment generally constructed of carbon steel or low alloy materials shall be protected from blasting and overspray of coatings intended for the ferritic carbon steel and low alloy materials, especially coatings containing zinc. NOTE: Inspection reports for the item to be coated shall confirm that the above pre blast checks are satisfactory. Inspection techniques shall conform to standard practices within the coating industry. 10.2 ABRASIVE BLASTING Abrasive blasting (automatic or manual) shall be completed using clean, sharp grades of abrasive suitable for producing the required surface profile on the blasted area. Either recyclable steel / chilled iron grit or expendable abrasives may be used for the blasting operation and the abrasive “mix quality” (new to old abrasive) shall be maintained so that a consistent profile is produced. Blast cleaning of Stainless steel and high alloy materials shall only be completed using expendable abrasives free from chlorides or other metallic residues (typical abrasives such as olefin sands should be used). NOTE: ABRASIVES CONTAINING SILICA SHOULD NOT BE USED UNLESS THE NECESSARY SAFETY PRECAUTIONS HAVE BEEN TAKEN AND LOCAL REGULATIONS ALLOW THE USE OF SUCH MATERIALS. Abrasive blasting equipment shall be regularly maintained and correctly used to meet local health and safety requirements. Personnel carrying out abrasive blasting shall be suitably experienced for the blast method / media specified for the work. Abrasive blasting of plates at a steel mill shall be completed simultaneously from both sides unless otherwise agreed. Alternate forms of blasting / surface preparation or the application of inhibitive washes after blasting to prevent rusting shall not be used unless otherwise agreed. After abrasive blasting and just prior to paint application, all dust and blasting residues shall be removed from the material surfaces by brushing and blowing down using clean dry air.

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 19 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

11.0 PAINTING GENERAL REQUIREMENTS Application of all surface protection materials shall be completed in accordance with the coating manufacturer’s published application instructions and relevant health and safety data sheets. Paint system shall be chosen to comply with BS EN ISO 12944 requirements unless otherwise agreed. All application equipment shall be as recommended by the coating manufacturer and shall be clean, in good condition, properly maintained and suitable for applying the specified materials. Generally coatings shall be applied by airless spray with brush / roller application being restricted to stripe coating or repair coating of small areas only. All personnel used to apply coatings shall be experienced and have the necessary abilities to apply the coatings in accordance with the wet and dry film thickness specified. All materials selected for use shall be: • • • • •

Suitable for their intended service and fit for purpose. Supplied in suitable containers clearly marked with expiry dates. Materials older than their stated expiry date shall not be used. Handled and stored in accordance with the manufacturer’s instructions. Storage of containers outdoors is not acceptable. Compatible with material coatings already applied. All coatings in a system shall be from the same manufacturer. Conform to all the technical requirements of this specification

11.1 APPLICATION REQUIREMNTS The application of protective coatings detailed in Section 6 above shall not take place during adverse weather conditions or when these conditions are expected prior to the coating drying. Generally paint shall not be applied (inside or outside) while any of the following conditions are present: • • • • •

Ambient, substrate or coating material temperature are above 49°C, below 10°C or outside the temperature range specified by the coating manufacturer. The relative humidity is greater than 85% (or as stated by paint manufacturer). The ambient or substrate temperature is less than 3°C above the dew point or outside the range specified by the coating manufacturer. Surfaces to be coated are damp or frosty. When excessive amounts of airborne dust / fume particles may adhere to the coating surface.

The inspection reports for the item to be coated shall detail actual temperature / humidity values before, during and after the coating application. All equipment used for temperature and humidity determination shall be suitably calibrated prior to its use. All materials shall be thoroughly mixed / agitated by mechanical means for the times recommended by the coating manufacturer in clean containers free from contaminants.

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 20 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

Where two pack components are used, they must be mixed in the proportions supplied by the manufacturer. Mixing of partial kits is not permissible. Thinner materials applied to the paint mixes must be as recommended by the coating manufacturer and used only in the proportions recommended by the coating manufacturer. Primers shall be applied preferably within four (4) hours but at maximum within eight (8) hours of surface preparation and before flash rusting or other contamination occurs. Stripe coating of all welds, edges corners or other poor access areas is required to ensure the minimum specified film thickness is achieved. Stripe coating, using the coating material, shall normally be applied by brush or roller immediately before spray application of the coating. Coatings shall be applied in a uniform layer, with each pass of the spray pattern overlapping by at least 20% onto the previous pass. The spray pattern shall be such that the coating is deposited in a solid, uniform, wet film, free from runs, sags, misses, dry spray, pinholes and bubbles. Overspray, drips etc. shall not be allowed to fall onto surfaces that have already been prepared or coated. When blasting / priming operations are completed in stages a 100mm wide strip of blasted surface shall normally be left un-primed. When blasting resumes, this 100mm wide strip will only require a “flash blast” prior to priming. Edges of field welds (to approximately 50mm) shall normally be masked off / left un-primed unless a weldable pre-fabrication primer is being applied. Succeeding coats of paint shall be of contrasting colours / shades so that extent of coverage can be easily determined. Again weld edges shall be left unpainted. Manufacturer’s over-coating intervals shall be complied with at all times and shall be recorded on the inspection reports for the items. If these over-coating times are exceeded the surface shall be re-prepared by sweep blasting and priming. Overcoating shall only be applied to previously coated surfaces that are free from dust, moisture, oil / grease and any other contaminant. All top coats shall be finished in accordance with the project colour coding system.

12.0 INSPECTION NOTE: All inspection operations shall be reported on project approved report Proforma and shall be conducted in accordance with the applicators standard procedures contained within their Quality Manual. All blast cleaned surfaces shall be examined for confirmation of the blast standard in accordance with BS EN ISO 8501-1 requirements and measurement of the surface profile using either comparator gauges or testex tape. The achieved profile shall be recorded on the inspection reports. Wet film thickness (WFT) shall be as required by the coating manufacturer to provide the required dry film thickness (DFT) values. The wet film thickness shall be measured with a “comb gauge” before the evaporation of contained solvents. The WFT value shall be taken by placing the “comb gauge” onto the coated surface for a few seconds and observing which teeth are coated when the gauge is removed. The wet film

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 21 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

thickness is taken as the last tooth coated and shall be recorded on the inspection reports. Several areas (away from welds and corners.) should be checked to confirm consistency of coating application. Visual examination of the dried coating shall show a continuous film, free from overspray / orange peel effects and application defects such as pinholes, voids, bubbles, skips, runs, sags, blisters and wrinkles. The coating shall be of a uniform appearance with respect to colour and thickness with no traces of a previous coating colour present. Dry film thickness (DFT) shall be measured when the coating is sufficiently cured to be resistant to the application of the magnetic probe. The gauge shall be calibrated prior to its use using non-magnetic foil shims of known thickness with the calibrated range being within ± 50% of the required DFT reading. Measurements of the average DFT shall be taken at approximately 1m2 intervals over the coated surface. The average recorded DFT shall be no less than 80% and no more than 150% of the specified DFT. The recorded DFT shall be detailed on the inspection report for the item. Review of all documentation for the coating operations shall confirm that these operations have been completed in accordance with this procedure and the manufacturer’s requirements.

13.0 REPAIR OF COATING All defects and damage shall be repaired prior to application of the top coat wherever possible. Damage to finished coatings shall be thoroughly cleaned and re-coated in accordance with the requirements of this procedure and the manufacturer’s information. Damage to coated surfaces showing signs of rust or bare metal shall be spot blast cleaned or power tool cleaned to restore the substrate to its original cleanliness. All loose / damaged coating shall be feathered back approximately 25mm around the cleaned area to form a uniform and smooth surface. Feathering shall be accomplished by hand or power sanding with abrasive media. The prepared surface shall be free from loose or blistered coating. Damage to coated stainless steel substrates shall comprise solvent cleaning followed by hand or power tool abrasion. Re-coating shall consist of the application of the appropriate primer to the correct DFT followed, as appropriate by finish colour with the finish colour and gloss matching as close as possible that of the adjacent surfaces.

14.0 SAFETY The materials and processes referred to in this procedure are potentially hazardous and due care must be taken to ensure that the safety or wellbeing of all personnel who may be affected by these materials / processes is not compromised. Compliance with local health and safety legislation and the relevant manufacturer’s MSDS is mandatory.

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 22 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

14.1 PROTECTION AND PRESERVATION DURING SHIPMENT Coated items shall not be handled or moved until the coating has properly dried and cured as required by the coating manufacturer’s data sheets. All coated materials shall be handled in an appropriate manner to prevent and minimise handling damage to the item coating during shipment to and storage at site. This will necessitate suitable lifting arrangements to avoid excessive rubbing of the chains and slings against the coated products and suitable packaging to prevent friction damage / impact damage between the products. Blast cleaned and primed materials shall be stored either indoors or undercover at site as this will ensure optimum conservation of the product coating integrity. This is essential for 9%Ni plate materials as there is no corrosion allowance on the materials. All primed materials must be kept separate from untreated materials. All products shall be isolated from ground moisture by appropriate stillage. The products should also be stored on a slight incline to prevent water retention on the surfaces and possible water stagnation. Where steel beams are used the surface in contact with coated materials must be covered. All materials shall be stacked to prevent personnel walking on treated surfaces. Untreated stainless steel shall not be exposed to salt spray during shipment to or storage at site. This may necessitate shipping in holds, undercover or protected by waterproof sheeting. Regular inspections of materials stored at site should be undertaken to ensure degradation of the materials is not occurring during storage. Results of all inspection operations shall be recorded and included within the tank documentation package.

15.0 COLOUR CODE AND IDENTIFICATION Colour Code and Identification for piping, equipment, etc. and Safety Identification was based on PTS (30.48.00.31/70.48.10.10) for this project. The purpose of the Colour Codes and Identification for piping, equipment and Work areas is to provide immediate or easily understandable warning on” Safety Condition” through colours or symbols, those meaning is clear to the operators and is to make known to anybody is expected to gain proper access to the plant. This specification is applicable for all piping, equipment, and the items indicated except underground piping and buildings. 15.1 COLOUR CODES (SCHEMES) Colour code (SCHEME) for equipment, piping, structure and other facilities refer to document number RGT2-PMT-MCI-SPN-000-0001 section 8.1 Table 4: Colour Codes (Scheme) for substrate

Owner: Contract No.: PETRONAS Gas Berhad PGB/HO/18/2012/0033 Project: Doc. No.: RGT-2 TERMINAL PROJECT RGT2-SCT-MEC-SPN-020-7049 Contractor: Rev. B SAMSUNG-WHESSOE-STS-SCTKL CONSORTIUM Page 23 of 23 Doc. Title: PAINTING AND COATING SPECIFICATION FOR LNG STORAGE TANK

15.2 SAFETY COLOUR CODING Safety Colour Coding for easy identification of specific equipment/component refer to document number RGT2-PMT-MCI-SPN-000-0001 section 8.2 Table 5: Safety Colour Codes