Blasting and Painting Procedure

Hazcon Nigeria Limited

ADNA WHP TOPSIDE FABRICATION, STRUCTURAL & PIPING INTEGRATION PROJECT

Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0

BLASTING AND PAINTING PROCEDURE

Rev. Date: 17/04/2011


FOR

ADANGA NORTH "A" PLATFORM OML 123

Status: AFC Page 1 of 24

Hazcon Nigeria Limited Document Title:


Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011




Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Status: AFC

Rev. Date:

Page 3 of 24

17/04/2011

REVISION DESCRIPTION SHEET

This sheet must be completed in detail, at each revision, once this document has been issued at revision 0. Details to include revision number, a description of the revision indicating paragraphs and pages that have been revised, together with the date and approved signature.

REVISION

DESCRIPTION

DATE

APPROVED BY



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

TABLE OF CONTENTS 1.0

GENERAL

2.0

INTRODUCTION

3.0

SCOPE

4.0

REFERENCES

5.0

DEFINITIONS

6.0

RESPONSIBILITIES

7.0

PROCEDURE 7.1 Safety 7.2 Safe Handling of Painted Structures 7.3 Paint Materials & Equipment




Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

7.6.9

Subsequent Paint Coats

7.7 Repair of Painting Defects 7.8 Control of Paint Thickness 7.9 Painting Inspection and Testing Equipment

8.0

7.10

System Color Code

7.11

Painting Schedule

ATTACHMENTS




Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

1.0


GENERAL This procedure outlines the steps to be taken by HAZCON NIGERIA LIMITED to carry out painting work and maintenance of painting equipments.

2.0

INTRODUCTION The purpose of this procedure is to determine the general requirements of painting Work for ADANGA NORTH "A" PLATFORM OML 123 Project and to ensure that painting work is done in accordance with applicable specifications and standard.

3.0

SCOPE This procedure covers the minimum requirement for surface preparation, coating application, safe handling and inspection of both shop applied and site applied coatings on steel structures, other steel materials, etc.



Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

SSPC SP3


power tool cleaning (steel structure painting manual chapter 2 surface preparation specs)

SSPC SP5

Joint surface preparation standard white metal blast cleaning (NACE No.1:1994 (steel structure painting manual chapter 2 surface preparation specs)

SSPC SP6

Joint surface preparation standard commercial blast cleaning (NACE No.3:1994 (steel structure painting manual chapter 2 surface preparation specs)

SSPC SP7

Joint surface preparation standard brush off blast cleaning (NACE No.4:1994 (steel structure painting manual chapter 2 surface preparation specs)



Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011


WFT Wet film thickness: The thickness of uncured or w et paint or coating MDFT Minimum dry film thickness TDFT

Total Dry film thickness: The thickness of the total number of coatings specified.

6.0

RESPONSIBILITIES 6.1

Project Engineer He shall be responsible for implementation of activities including preparation of work, delivery of material, surface preparation, painting, etc.

6.2

QC Manager He shall be responsible for review of all request forms and report of examination, inspection and control of painting materials and procedures.



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011


Safety data sheet and application instructions shall be the governing literature. And shall be made continuously available at the work place. Instructions on handling and storage shall be followed. Flammable products, thinners, etc, are to be stored away from combustible materials and all precautions taken to avoid creating fire hazards.

7.2

7.2.1

Safe Handling of Painted Structures

Painted structure shall be allowed to remain up to the minimum time required for dry to handle before lifting to another point by crane on any other means that may not cause damage.

7.2.2

During lifting of painted structure, the point for attachment of lifting rope or belt shall be protected with soft and dry rag or foam material to prevent the hard rope creating an unwanted impression or damage at that point.



Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

hauling and positioning of items for blasting and painting and storage of painted spools.

7.2.7

Any identification mark damaged during painting shall be restored before storage.

7.2.8 Painted spools shall be stacked on pallets or timber with soft padding and wedge supports.

7.3

Paint Materials & Equipment

7.3.1 Paint Materials




Document Title:

Document Number:

01-165-HZN-13-PRO-0001

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Rev. Date: 17/04/2011


storage, shall not be used. 7.3.7

Only grits shall be used for all blasting activities.

7.4

Equipment

7.4.1

All the equipment and material necessary to carry out cleaning, priming and painting work shall be suitable and adequate to produce the standard of surface preparation and paint application required by the specifications.

7.4.2

Compressed air supply used for blast cleaning shall be free from water and oil, adequate separators and traps shall be provided, installed in the coolest part of the system. They shall be emptied regularly to prevent carry over of water and oil.

7.4.3

All blasting and painting equipment shall be inspected and accepted prior to usage.



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011


defective paint work shall be removed by Blast cleaning to sa2½ or SSPC-

SP10. of SIS 05.5900-1967 for blasting, also as recommended in manufacturers product data sheet. NOTE!!

Sa3- Blast cleaning to visually clean steel: The entire surface shall show the blast cleaning pattern and shall be uniformly bright clean bare steel. All parts of the surface shall be free of discoloring by rust, stain, mill scale, residues or other foreign mater. Sa2½ - Very thorough blast cleaning: The entire surface shall show the Blast cleaning pattern and at least 95% of the surface shall be bright clean bare steel. The surface may show some shadows, streaks or light discoloring, but these should be slight and distributed over the surface.



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

7.5.6


Blast clean surfaces prepared to the required quality of cleanliness shall be referenced to the visual illustration in ISO 8501-1. Surface profile shall be continuously checked against surface comparator.

7.5.7

Manual and mechanical (power tool) cleaning shall only be carried out where blast cleaning is impractical and for repairs of paint defects or site welded areas. The surface cleanliness achieved shall satisfy ISO8504-3, grade st2 for manual and st3 for power tool cleaning. Only stainless steel wire brushes shall be used to abrade stainless steel surfaces. Brushes used to abrade carbon steel shall not be used to abrade stainless steel or other noble materials.

7.5.8

Surface Preparation of Stainless Steels, Galvanized steel and Non-ferrous metals shall be performed by solvent or steam cleaning with an alkaline detergent. Stainless Steel surface preparation/painting shall only be executed where it is specifically ie. if required for color coding purposes or other such



Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

7.6.3


Mixing Paints shall be thoroughly mixed by rotating power tools or rolling rigs, until the solids are distributed equally throughout the container and two pack or multiple pack paint components shall be mixed in the proportions and in accordance

with

the

Paint

Manufacturer’s

instructions

and

recommendations. The mixed paint color shall exactly match with other prepared paints without deterioration such as setting, separation, gelling etc.

7.6.4 7.6.4.1

Paint Application Each layer of paint shall be allowed to dry for a period of time within the limits prescribed by the Paint Manufacturer.

7.6.4.2

Particular attention shall be paid to the painting of corners, edges, welds, etc, to ensure the specified minimum dry-film thickness is obtained and



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011


over spray . The spray nozzle size shall be as specified in the paint manufactures application instruction. Spary equipment shall be regularly inspected for compliance with the above criteria.

7.6.6

Brush application: Brushing shall be executed in such a manner so that a smooth single coat, as near uniform in thickness as possible is obtained. There shall be no deep or detrimental residues brush marks and excessive brushing out will not be permitted. Brush application may be used under the following circumstances. l

When areas cannot be properly coated by spraying for any reason

l

For 'touch-up' or repairs to localized damaged or areas of incorrectly applied paint.

l

Where the Paint Manufacturer considers the coating material suitable for brush application.

7.6.7 Weather Conditions



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011


sheet).

7.6.8

Primers

7.6.8.1

Within four hours after the surface has been cleaned (blasted, wire brushed, etc.) and before the surface has become chemically contaminated, or shows signs of significant discolouration, the first coat of primer shall be applied. This is of particular importance in dusty area, or where salt laden air, winds and humid conditions are encountered.

7.6.8.2

Prepared welding edges and surfaces within 50mm of welding shall be left unpainted or painted with an approved welding primer only.

7.6.8.3

The paint shall be applied so as to prevent having differential dry film thicknesses. "Dry spray" in particular shall be prevented.



Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

7.6.9.4


Metal contact surfaces - i.e. bolted joints in structures should be painted with one full coat of the specified primer on both surfaces immediately before bolting up. Fretting surfaces where friction grip is required shall not be painted.

7.7

Repair of Painting Defects Areas of painted surfaces that have become damaged shall be removed back to bare metal and the exposed edge of the undamaged paint shall be feathered out with a hand tool to a gentle bevel overlap between repair painting and old painting to permit. The surface areas with inadequate coating thickness shall be thoroughly cleaned of any foreign material and, if necessary, abraded and additional compatible coats applied until they meet the required dry film thickness.

7.8

Control of Paint Thickness



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011

7.8.6

7.9.1

Page 18 of 24

The acceptable DFT shall be as specified in the paint manufacturers application instruction and ADDAX Protective coating Specification

7.9

Status: AFC

(11-01Rev.3)

Painting Inspection and Testing Equipment All testing and inspection equipment shall be kept accurately calibrated at all times and shall be covered by current calibration certificate issued by the equipment manufacture or a recognized test laboratory. Inspection equipments shall include: (1). Surface profile comparator, for checking surface profile (2). Digital temperature& Humidity meter, for ambient temperature and relative humidity (3). Non contact thermometer, for substrate temperature (4). Dew point calculator, to determine the dew point (5). Electromagnetic thickness gauge (Elcometer) for dry film thickness



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011


by client however in all instances the Paint Manufacturer's recommendations shall be adhered to in respect of maximum and minimum dry film thicknesses per coat.

8.0

ATTACHMENTS 1.

Daily Painting work/weather check sheet

2.

Dry film thickness check

3.

Paint aplication report

5.

Quality Control Inspection and Test Plan for Blasting and Painting



Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Status: AFC

Rev. Date:

Page 20 of 24

17/04/2011

1.

DAILY PAINTING WORK SHEET/WEATHER CHECK SHEET

DAILY PAINTING WORK SHEET/WEATHER

DATE…

CHECK SHEET REPORT……………….. Location:

Weather Condition:

Rain-Rn, Wind-wd, Snow-sw, Sun-sn, Cloudy-cy, Frost-fr

TIME READING Weather Ambient temperature ºC %Ambient Humidity %RH Dew point temperature (Dt) ºC Substrate temperature (St) ºC

8

9

10

11

12

13

14

15

16

17

18



Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Rev. Date: 17/04/2011




Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Status: AFC

Rev. Date:

Page 22 of 24

17/04/2011

REPORTS NO:

DRY FILM THICKNESS INSPECTION SHEET

DATE: Location:

Type of structure:

Method:

Equipt Serial No.

ITEM DESCRIPTION

st

1 Coat

st

nd

1 + 2 Coat

st

nd

1 +2 +3

rd

Coats



Document Title:

Document Number:

01-165-HZN-13-PRO-0001

Rev.: 0


Status: AFC

Rev. Date: 17/04/2011

HAZCON Date

CLIENT Name

Sign

2. DRY FILM THICKNESS INSPECTION SHEET .

Page 23 of 24

Date

Name

Sign

Rev: 0 Page 24 of 24 15/10/2011

HAZCON NIGERIA LIMITED

Title

BLASTING AND PAINTING PROCEDURE ADANGA NORTH ’’A” PLATFORM

Doc.

HZN-ADNH-005

No.:

3.

PAINTING INSPECTION REPORT

REPORTS NO:

PAINTING INSPECTION REPORT

DATE: Item/Equipment Description Location: Surface preparation:

Report No.

Date: FILM TICKNESS µm

COATING

BRAND OF PAINT

BATCH NO.

NO. OF

Parts A/B

COATS

Date

Time

Weather

Wet

Dry Value

PRIME MID-COAT TOP-COAT Any specific problems encountered with/causes/solution: COMMENTS: HAZCON Date

CLIENT Name

Sign

Date

Name

Sign

No.

Blasting and Painting Procedure

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