Definitions and code standards
Definitions
LSP : Long Son Petrochemicals Co.Ltd PPC :The Consortium of PEC and PVC-MS PEC : POSCO Engineering & Construction Co., Ltd
PVC-MS :Petroleum Equipment Assembly and Metal Structure
Joint Stock Company ISO :International Organization for Standardization ASTM : American Society for Testing and Material DFT :Dry Film Thickness
NDFT : Nominal Dry Film Thickness WFT :Wet Film Thickness
FIN : Field Inspection Notice NDE :Non Destructive Examination
The following codes, standards and documents are parts of this procedure:
- ISO 8501-1 : Preparation of steel substrates before application of paints and related products- Visual assessment of surface cleanliness
- SSPC-SP3 :Power Tool Cleaning
Code standard
- SSPC-SP 6 : Commercial Blast Cleaning
- ASTM D4417 : Standard Test Method for Field measurement of s urface profile of Blast Cleaned Steel
- SSPC-PA2 : Measurement of dry paint thickness with magnetic g auges
- TF1-2S92-100021 : Job Safety Analysis (JSA) for Each Construction Activity
Health, Safety and Environment Requirements
All workers must wear suitable personal protective equipment (PPE), including hard hats, safety glasses, gloves, and respirators, to ensure their safety on the job Additionally, an eye washing station should be accessible in the work area for emergency situations.
Storage, mixing and application of paint shall be performed strictly in accordance with the manufacturer’s recommendations.
All blasting and painting equipment and associated attachments shall be adequately earthen to avoid electrostatic discharge.
Compressors and associated pressure vessels shall be protected against over pressure by using suitable safety relief valves.
Spray equipment shall not be operated unless all grounds are in place and connected. All of the pressure system components shall be in good condition.
It is essential to keep the working area clean and safe at all times Proper enclosure of the painting area is necessary to contain paint dust and prevent it from affecting nearby individuals or the surrounding environment.
Product material safety data sheet with detailed safety precautions shall be available on working area.
Weather conditions
Surface temperature and ambient conditions shall be checked before start of each work by means of whirling hygrometer and dial thermometer.
Painting work should not be conducted under certain conditions unless specified by the Paint Manufacturer's product datasheet or approved by LSP and PPC These conditions include dusty or windy weather, fog, wet or damp surfaces, substrate temperatures below 3°C above the dew point, and relative humidity exceeding 85%, except for Zinc Silicate, which can be applied at humidity levels up to 90%.
To maintain optimal painting conditions when humidity exceeds 90% or during rain, all doors and windows of the workshop must remain closed to block outdoor moisture Blower fans and the ventilation system should operate at full capacity If the painting surface is wet or damp but requires immediate attention, ensure it is thoroughly wiped dry before proceeding Additionally, use halogen lighting to raise the surface temperature to at least 3°C above the dew point.
Materials and Equipment
Material
For blasting carbon steel items in an auto blasting machine, a combination of steel shot and steel grit is recommended In contrast, manual blasting of carbon steel items at the temporary blasting area should utilize sand or non-metallic abrasives.
The abrasives shall be free of oil, grease and other contaminations The use of recycled abrasives shall only be accepted if it is in good conditions.
For the project, only one manufacturer's products shall be used, excluding special items Each product must clearly display the manufacturer's name, paint type, corresponding thinner, color, gross and net weight, brand number, product identification, batch number, manufacturing date, and shelf life.
Paint and abrasive materials shall be always stored in a well-ventilated space, away from direct sunlight or other heat sources in accordance with manufacturer’s recommendation and project specification.
Equipment
a Auto blasting machine shall be preferably employed for blasting steel items such as beams, plates, straight pipe and supports.
Manual blasting or power tool equipment should be utilized for surface preparation outdoors when it involves small or irregular items that cannot be effectively blasted by automated machines or for weld field repairs.
Manual blasting equipment shall be composed of blast pot, hose with safety dead man trigger, air manifold and air compressor accompanied.
The compress air used for blast cleaning shall be free from oil and moisture with suitable filters. b Personal painting shall be protective by PPE.
For optimal spray painting, the air compressor must maintain a pressure of 100 psi during the application of coatings While each sprayer may have personal preferences regarding spray pressure tip sizes, adhering to this pressure standard is essential for achieving the best results.
Paint Type Tip Size Pressure PSI
When applied shall be stripe coating in the corners, edges, crevices, holes, welds area small by roller and brush. c Section work sequence receiving of materials :
- Visual inspection and applied primer coat
- Remove lifting and welding at site
- Visual inspection, DFT check and applied intermediate coat
- Visual inspection, DFT check and applied top coat
- Touch up damaged and packing
Manpower mobilization plan
No Name Professional qualification Certificate No ID Number/
1 HO VAN HUE Painting Supervisors GS&CAM 11/07-02 082
2 LE QUANG DAO Chemical Engineering
3 NGUYEN NGOC HO Painting Supervisors B 275007 273662270 Painting QC
4 LE NHAT HUNG Chemical Engineering 017734 205270370 Painting QC
5 HO VAN LINH Machinery manufacturing technology 00277546 186114969 Material
6 LE SINH LAP Machinery manufacturing B 0269975 273045104 Painting QC
LE QUANG DAO daolq@pvc-ms.vn 0908.599.758
LE SINH LAP Lapls@pvc-ms.vn 0933.400.149
NGUYEN VAN THANG thangnv@pvc-ms.vn
BLASTING, PAINTING SUPERVISOR NGUYEN NGOC HO honn@pvc-ms.vn 0913.180.864
HO VAN DU duhv@pvc-ms.vn 0908.472.354
7 NGUYEN VAN THANG Mechanical technology A239047 40086000226 Painting QC
8 HO VAN DU Crane Signals PVMTC/KCK-116 025069236 HSE
9 PHAM VAN BINH Blaster & Painter 000275/TDTNLDK 273182797 Painter
10 NGUYEN CONG TUYEN Blaster & Painter 002529651/LĐTBXH - DN 186349574 Painter
11 PHAM HUY VIEN Blaster & Painter 1026 151218308 Painter
12 NGUYEN VAN NAM Blaster & Painter 101CN 183576492 Painter
13 PHAN HUU NAM Blaster & Painter 4/27/1900 182040877 Painter
14 PHAM MINH THANH Blaster & Painter 001390 220812973 Scaffolder
15 LE MINH DUNG Blaster & Painter 441 171335004 Scaffolder
KHANG Blaster & Painter 000276/TDTNLDK 271483127 Painter
17 PHAN VAN THANH Blaster & Painter 603 183819303 Painter
18 HO TRONG MINH Blaster & Painter 002529250/LĐTBXH-DN 273162617 Painter
19 NGUYEN DINH MINH Blaster & Painter 001088189/LĐTBXH-DN 273378731 Painter
20 TRAN VAN HUONG Blaster & Painter 11/CAM1-98 183419684 Painter
21 TRAN VAN HOAI Blaster & Painter 000103086/LĐTBXH-DN 370968238 Painter
22 LE VAN CHUNG Blaster & Painter 652 172113332 Painter
23 LE CONG DUNG Blaster & Painter 0809/TTDTDKVN 273045012 HSE
24 LE THE TRUYEN Blaster & Painter 001406 220932072 Painter
25 NGUYEN DINH THI Blaster & Painter 001362549/LĐTBXH-DN 273261287 Blaster
26 BUI VAN CHUNG Blaster & Painter 000455 273529588 Blaster
27 NGUYEN DUY NGAI Blaster & Painter CAM07/00074//TDTNLDK 186164453 Blaster
28 LE VAN NGUYEN Blaster & Painter CAM07/00 074/TĐTNLDK 172123544 Blaster
29 LE VAN SANH Blaster & Painter 3/17/1901 273425461 Blaster
30 NGUYEN HUU NHAT Blaster & Painter CAM07/00072//TDTNLDK 273611157 Blaster
31 NGO SY HIEP Blaster & Painter 0737 273279985 Blaster
32 PHAN VAN MINH Blaster & Painter 10/23/1902 183016021 Blaster
33 NGUYEN DINH QUAN Blaster & Painter 005987683/LĐTBXH-DN 34083002247 Blaster
34 HOANG VAN DO Blaster & Painter 133 091003164 Rigger
35 DO VAN KHA Blaster & Painter 000277/TDTNLDK 161889991 Blaster
36 HO VAN MY Blaster & Painter 000651812/LĐTBXH-DN 187306029 Blaster
37 DAO QUANG THANH Blaster & Painter 5319 151657100 Blaster
38 DANG TIEU HOA Blaster & Painter 005060/GCN-TCN 131290805 Blaster
39 NGUYEN VAN QUANG Blaster & Painter 99 273497254 Blaster
40 NGUYEN DANH HIEP Basic rigging 001101189/LĐTBXH-DN 273240710 Helper
41 HOANG TAT THANH Blaster & Painter 3001566/LĐTBXH-DN 131124936 Helper
42 DONG HUY XUAN Blaster & Painter N/A 1718037770 Helper
43 HOANG VAN THANH Blaster & Painter 002868064/LĐTBXH - DN 273519448 Helper
44 HOANG VAN NAM Blaster & Painter 006800264/LĐTBXH - DN 273615769 Helper
45 HO VAN CU Basic rigging PVMTC/KCK-017 187178384 Helper
46 PHAM DINH QUANG Industrial Electricity 00005315 186709738 Helper
47 LE CONG VIET Blaster & Painter 000083243/LĐTBXH-DN 273039797 Electrician
48 TRAN VAN LAN Scaffolding techniques LRGG01/00779/TDTNLDK 172869371 Helper
49 LE VAN SANH Blaster & Painter 3/17/1901 273425461 Blaster
50 NGUYEN VAN LIEM Blaster & Painter 05/000424/TDTNLDK 172770148 Blaster
51 NGUYEN NHIET TAI Blaster & Painter CAM07/00067//TDTNLDK 273042161 Painter
Equipment mobilization plan
STT No Tên thiết bị
Nước sản Manu xuất factur e
Số báo cáo Report No.
Số tem kiểm định Calib.
Ngày kiểm Calib định Date
Giá trị tới hạn Valid Until Đơn vị quản lý User
4 Air spray - painting equipment Graco 24470 U.S.A N/A 30÷85
8 Air spray - painting equipment N/A AA0598
Pressure gauge Bourdo n 01634 N/A N/A 0÷25ba r 43-19/AK- KĐĐNB 02374 03/04/
Safety value Spring loaded SRV
Pressure gauge Bourdo n 02363 N/A N/A 0÷15ba r 44-19/AK- KĐĐNB 02363 03/04/
Safety value Spring loaded SRV
Safety value Spring loaded SRV
Pressure gauge Bourdo n 02622 N/A N/A 0÷14.7 bar 118-19/AK- KĐĐNB 02622 01/10/
Safety value Spring loaded SRV
A0369/04/B RI/KĐ ĐNB/36/KĐ V-LĐTBXH
Blasting and painting schedule
No Generic name Product Name
Recoating Interval at 30ºC Remarks Min Max
I - PAINTING AND COATING SYSTEM FOR NON-INSULATED SURFACES
All steel structures include pipe racks, pipe support, support of equipment e.g skirts, saddles, equipment and vessels, heat exchangers and columns… at operating temperature 0-
Pipes, fittings, flanges, outside surface of storage tanks and spheres at temperature ≤
2 nd coat shall be applied employing by a mist coat of DFT before fully 25àm applying. Mist coat shall be thinned with 25- solvent 30%
Zinc Rich Epoxy shall be for touch used up instead of Ethyl Silicate for Zinc ease of application and avoid potential risk of delaminati on
2 All steel structures include pipe racks, SSPC - SP10
Grey P) 73 75 0614 5% 20h Fre e pipe support, support of equipment e g skirts, saddles; furnaces, chimneys, flue gas ducts, boiler parts, equipment and vessels, heat exchangers and columns; pipes, fittings, flanges…at operating temperature 101-
30àm- 80àm Power tool cleaning to SSPC- SP3 for touch up
All furnaces, chimneys, flue gas ducts, boiler parts, equipment and vessels, heat exchangers and columns; pipes, fittings, flanges…at operating temperature 201-
Power tool cleaning to SSPC- SP3 for touch up
Silicone Acrylics QT606 Alumi nium 42 30 002 5% 1h Fre e
Silicone Acrylics QT606 Alumi nium 42 30 002 5% 1h Fre e
Aluminiu m QT606 Alumi nium 42 25 002 5% 1h Fre e
Aluminiu m QT606 Alumi num 42 25 002 5% 1h Fre e
Inside surface of floating roof tank shell up to 1.5m height including tank floor; Tank platforms, tank surfaces subject foot traffic, to checkered plate covering of platform;
Equipment subject to immersion in water or to continuous wetness of steel surfaces at operating temperature 0-
SSPC SP-10 Surface profile 30àm- 80àm Power tool cleaning to SSPC- SP3 for touch up
Un-insulated carbon steel with high corrosive area as marine or salinity condition at operating temperature 0-
SSPC - SP10 Surface profile 30àm- 80àm Power tool cleaning to SSPC- SP3 for touch up
II - PAINTING AND COATING SYSTEM FOR INSULATED SURFACES
All steel structures, equipment; piping components, flanges, supports …at temperature ≤
Zinc Rich Epoxy shall be used for touch up instead of Ethyl Zinc Silicate for ease of application and avoid potential risk of delaminati on
A1(R) : For touch up at damaged areas
All steel structures, equipment; piping components, flanges, supports …at temperature 101-
SSPC - SP10 Surface profile 30àm- 80àm Power tool cleaning to SSPC- SP3 for touch up
All steel structures, equipment; piping components, flanges at operating temperature 201-
SSPC - SP10 Surface profile 30àm- 80àm Power tool cleaning to SSPC- SP3 for touch up
Recomme nded by Manufactu rer
Silicone Acrylics QT606 Alumi nium 42 25 002 5% 1h Fre e
Fire-proofed steel structures with high corrosive area as marine or salinity condition at operating temperature 0-
SSPC - SP10 Surface profile 30àm- 80àm Power tool cleaning to SSPC- SP3 for touch up
External surface of Single Wall
SSPC - SP10 Surface profile 30àm- 80àm Power tool cleaning to SSPC- SP3 for touch up
Grey P) 73 75 0614 5% 20h Fre e proposed PPC the new coating system (A2)for control easy during fabrication activities in the shop or in the field
III - PAINTING AND COATING SYSTEM RECOMMENDED FOR GALVANIZED (IF SPECIFIED IN ENGINEER DRAWINGS)
All galvanized surfaces or stainless steel at at operating temperature 0-
SSPC - SP1 Sweep blast or Power tool cleaning to SSPC- SP3 for touch up
1 Galvaniz surface ed proposed PPC the new coating system (F)for easy control during fabrication activities in the shop or in the
Not e 1 Final Color for finish coat shall be refered to section 7: Color coding, Table 4 and 5 in the procedure : TF1_2R07_000009_Rev C (See attached)
10.Blasting and painting workshop layout
Workshop blasting Applied primer coat at workshop
Surface preparation shall be carried out in accordance with specification TF1-2R07- 000009.
All pipe works shall be inspected to identify any defect that may be detrimental to provide good performance coating system.
All sharp edges must be rounded off, and any imperfections like skip welds, weld spatter, rough welds, and delamination should be addressed through grinding or sanding before preparing the surface.
Thoroughly degrease the surfaces by organic solvent wiping or other appropriate methods to remove all trace of oil or grease in accordance with SSPC-SP1.
Surface preparation and painting must not proceed without prior approval from LSP and PPC until the necessary Non-Destructive Examination (NDE) is completed and deemed acceptable Additionally, FIN must notify LSP and PPC at least 24 hours in advance, or 48 hours in advance for weekends.
Before surface preparation, it is essential to mask off the tag name to prevent misidentification Additionally, adequate protection must be applied to the flange serration surfaces and any areas that do not require painting to safeguard against handling damage and blasting.
Blast cleaning should adhere to SSPC-SP 10 (Near blast white cleaning) or the ISO 8501-1 Sa 2.5 standard, utilizing clean and dry abrasives to create a surface profile of 30-80 microns In the event of any disputes regarding surface cleanliness, the ISO 8501-1 pictorial standard will serve as the reference standard.
The surface roughness of the blasting area is accurately reproduced with Replica Tape, specifically the Elcometer Press-O-Film, and measured using a calibrated Thickness Gauge, the Elcometer 124, in compliance with ASTM D4417 standards This replica must be preserved and included in the daily blasting and painting report.
All surfaces that have undergone blast cleaning must be primed within 5 hours of the blasting process to prevent visible rusting If any visible rust reappears, the affected metal surfaces should be lightly blasted again.
All equipment and materials made from non-ferrous materials, including stainless steel, galvanized metal, aluminum, brass, copper, plastic, and protected metals like rubber-lined surfaces, typically should not be painted.
In case stainless steel, galvanized surface to be coated, it shall be prepared by sweep blasting by proper non-metallic abrasives to provide better adhesion.
Spool components, blasted and primed at painting workshop shall be fabricated and spot repaired for field welds at temporary workshop or at shop.
Field welds repair shall be power tool cleaning to ISO 8501-1 St3 or SSPC-SP 3 or manual spot blast cleaning to standard SSPC-SP 6 or the equivalent standard ISO 8501-1 Sa 2.
When using a grinding disc to remove stubborn weld splatter, it is crucial to exercise caution to avoid polishing the surface or creating harmful roughness.
The cleaning method undertaken shall remove all weld flux slag, fume, loose mill scale or loose paint if present after welding and testing has been completed.
Paint application shall be in accordance with project specification TF1-2R07-000009 requirements and coating systems.
For optimal application, paint materials must be thoroughly mixed using a mechanical mixer, such as a paddle mixer, right before use To ensure consistent quality, inorganic zinc silicate should be continuously stirred during application to prevent zinc dust from settling at the bottom of the container.
Paint component shall be mixed in proper ratio as supplied by the paint manufacturer in proportional container.
Thinners shall only be added strictly in accordance with the paint manufacturer’s instructions The type of thinner shall comply with the paint manufacturer’s instructions.
The manufacturer’s recommended pot life shall not be exceeded When the limit is reached, the spray pot shall be emptied and cleaned and new material shall be mixed.
All areas, that cannot properly spray- coated such as corners, edges, welding seam, etc.
Will be stripe-coated prior to application of specified coat.
The spray pattern shall be adjusted so that paint is deposited in uniform layers with the correct wet film thickness.
Spray gun shall be kept perpendicular to the surface being coated at a maximum distance of 300 mm from the surface and no closer than 200 mm to the surface.
Parallel, even passes shall be made that overlap the previous spraying coating by 50 percent.
All runs, air bubbles, sags and other imperfections shall be brushed out immediately.
Before applying the next coat, ensure each layer is fully cured and dry to prevent issues like lifting or loss of adhesion Always adhere to the manufacturer's instructions for optimal results.
The color of top coat and coating system shall be complied with TF1-2R07-000009 (Rev C) - Specification for Painting (Addendum to SP 009)
To ensure proper adhesion of subsequent coatings, it is essential to adhere to the maximum and minimum re-coating intervals outlined in the manufacturer's data sheets If the maximum re-coating interval is exceeded, prepare the painting surface by roughening it through sweep blast cleaning or, if abrasive blasting is not feasible, by using sandpaper before applying the next coat.
Portion of field welding joints of spools shall be masked off at least 50 mm both sides to facilitates for welding works.
To prevent contamination, it is essential to remove any unnecessary materials from the pipe or spools using air blowing Additionally, the end cap should be securely replaced to protect against the entry of foreign materials.
Painted spools, piping or supports shall be dried enough for transportation Painted items shall be handled, moved or transported in such a manner as will not damage the paint film.
The completed coating must undergo a visual inspection by authorized inspectors from LSP and PPC It should exhibit a consistent color and smooth finish, adhering to the standards outlined in TF1-2R07-000009 Any defects such as improper application, runs, sags, damages, excessive repairs, incomplete curing, or excessive thickness may lead to rejection of the work.
The DFT shall be checked in accordance with the procedure defined by SSPC
PA2 using a magnetic gauge that has been properly calibrated.
Minimum thickness of the single spot measurement shall be equal or more than 80% of the specified minimum thickness.
The maximum thickness for a single spot measurement must not exceed 120% of the specified maximum thickness and should also remain below the manufacturer's maximum allowable thickness.
Coating inspection records shall be submitted to the LSP and PPC for use in preparation of a final inspection report.
All damaged surfaces must be prepared using spot blast cleaning or mechanical power tools The existing coating surrounding the blast area should be feathered to ensure a smooth transition from the bare substrate to the intact coating This will be painted with the specified coating systems, adhering to the approved paint system as outlined in project specification TF1-2R07-000009.