Method Statement of Painting work

CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation METHODSTATEMENT SMC Manufacturing (Vietnam) Factory-phase Project PAINTING WORK FACTORY No.1 Ref No: SMC-ACS-MS-01-PTW-001 ACSC- CONG TY CO PHAN XAY LAP THUONG MAI Revision 01 02 Revision History Date of issue Purpose of issue (approved/ revision) 08/Jan/2016 For Approval 26/Jan/2016 For Approval Name Prepared by Lê Long Hậu Reviewed by Nguyễn Hoàng Trinh Approved by Nguyễn Văn Trung Checked by QA-QC QA-QC HSE KDA Submitted by ACSC Position Deputy Site Manger Site Manager Project Manager Approved by KOA Position Date Reviewed by Approved by SMC-Factory No.1/MS-Painting work Page Date Signature Signature CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation Name Prepared by Reviewed by SMC-Factory No.1/MS-Painting work Approved by Client Position Date Page Signature CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation Contents QUALITY CONTROL Appendix-1: Inspection test plan Appendix-2: Construction schedule Appendix-3: Risk Assessment SMC-Factory No.1/MS-Painting work Page CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation INTRODUCTION 1.1 GENERAL This method statement describes the methodology for Emulsion Painting on surface of concrete and plaster in Factory 01 - SMC project Painting will be carried out after all constructions of relevant concrete structures such as slab, columns and plastering work completed The concrete work, plaster work were covered by another submittals, therefore they will no longer discussed in this method statement Emulsion painting includes internal and external wall and will be applied on the ground floor and the 1st/mezzanine Floors of building Some ceiling and partition inside the building are also the subject to be painted In general, the paint coating will consist of putty, primer (or sealer), undercoat and finish coat Putty: This coat will fill into the rough surface of plaster and cover it to form even, smooth surfaces before applying the paint system Sealers: This helps to prevent underlying as well as subsequent coats from reacting with each other, while ensuring adhesion to the surface Primer: Primers function to bind subsequent coats to the surface, while inhibiting deterioration of the paint system as a result of rust, weathering or other forms of corrosion Under coats: This intermediate coat prepares the surface for the finishing coat while giving opacity and film build to the paint system Finish coats: This finish coat to color the surface according to the design request Materials of painting are divided into two systems: interior and exterior Besides the differences of material such as putty, primer, finish coat, the method to apply these two kinds are exactly the same Depend on the architect design, there will be different colors to apply for the wall, ceiling, molding… 1.2 DEFINITIONS: PROJECT PARTICULARS: Project name : SMC MANUFACTURING (VIET NAM) FACTORY-PHASE PROJECT Address : Long Duc Industrial Park, Long Duc Ward, Long Thanh District, Dong Nai Province, Viet Nam PARTY: Client/ Owner : SMC MANUFACTURING VIETNAM CO., LTD Contractor : KAJIMA OVERSEAS ASEA PTE LTD Responsible for the supervision of Contractors who will construct the podium and all related activities as outlined in this procedure 1.3 SCOPE OF WORK The works to be carried out by Sub-Contractor (ACSC) and shall apply for works at Factory No.1 of SMC MANUFACTURING (VIET NAM) FACTORY-PHASE PROJECT Construction Reinforcement Concrete Structure works included: a Pile head treatment b Earth work c Formwork d Reinforcement Steel Rebar work e Concrete work Finishing works included: SMC-Factory No.1/MS-Painting work Page CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation a b c d Brick work Plaster work Painting work Tiling work (Wall & Floor) 1.4 BUILDING DESCRIPTION: Location: Factory No.1 are located at the corner of Road No.D5 &N2-5 in Long Duc Industrial park as below Factory No Description: - Building purpose :Factory Foundation : Spun piles (D300, 350, 400 mm) Structure : RC structures + steel rafter; Slab on grade Dimensions: o Factory  140m long (14x10m); 60 (4x15m) - 69m wide  Ground Floor (FL 0.00m); 1st Floor (FL +7.25m)  Height : 11.40m o Utilities area: x (120m long, 4.5m wide) SMC-Factory No.1/MS-Painting work Page CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation GROUND FLOOR PLAN - Floor load: o Factory Ground Floor o WC Ground Floor o Stair case o Storage/Utilities : 40 KN/m2 : KN/m2 : KN/m2 : 10 KN/m2 - Slab thickness: o Factory Ground floor slab : 300 mm thk o Storage/Utilities Ground Floor slab : 150 mm thk o 1st Floor slab : 140 mm thk - Area: o Ground floor o + Factory area + Storage/Utilities area 1st Floor SMC-Factory No.1/MS-Painting work : 9561 m2 : 8400 m2 : 1161 m2 : 9561 m2 Page CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation ORGANIZATION 2.1 ORGANIZATION CHART (Factory No.1) Project Manager NGUYỄN VĂN TRUNG (MP: 090 330 7742) nguyenvantrung@acsc.com.vn Site Manager Deputy Site Manager NGUYỄN TRÍ KHOA (MP: 0937 229 680) Site Engineers ngtrikhoa@acsc.com.vn Deputy Site Manager NGUYỄN HOÀNG TRINH (MP: 090 2911235) LÊ LONG HẬU (MP: 093 734 3055) nghoangtrinh@acsc.com.vn haull@acsc.com.vn Nguyễn Minh Tuấn (MP: 098 314 5069) QA&QC Nguyễn Văn Hào (MP: 0938.722.730) Phan Quốc Trường (MP: 0906 027 797) Safety Supervisors quoctruong@acsc.com.vn Shop Drawings Đỗ Vũ Quyền Anh (MP:090 853 1908) Hoàng Văn Hải (MP:908 818 1059) Construction teams Mason Teams 2.2 ASSIGNMENT Position Deputy Site manager Site Engineer QA&QC Engineer Safety Supervision Factory No.1 NGUYỄN TRÍ KHOA Factory No.9 TRẦN AN TOÀN NGUYỄN MINH TUẤN NGUYỄN VĂN HÀO PHAN QUỐC TRƯỜNG ĐỖ VŨ QUYỀN ANH LÊ VĂN TUẤT BÙI CÔNG HUYNH NGUYỄN ANH ĐỨC PHẠM VĂN MẠNH SCHEDULE Construction Schedule of painting work is attached in Appendix-2 SPECIFIC STANDARD Painting works should be carried out in accordance with the requirements of: - SMC MANUFACTURING (VIET NAM) FACTORY-PHASE PROJECT Specification finishing • • • • works Current Vietnamese Construction Standards TCVN 6934-2001: TCVN 8652-2012: TCVN 5674-1992: TCVN 9405-2012: heat SMC-Factory No.1/MS-Painting work Wall paints- Emulsion paints- Specification and test methods Wall emulsion paints- Specifications Finished works in construction- Execution, check and acceptance (group H) Wall paints- Emulsion paint- Methods for determination of resistance to damp Page CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation SCOPE OF EMULSION PAINTING WORKS: Emulsion painting includes internal and external wall and will be applied from the ground floor to the 1st floor of building Some ceiling and partition inside the building are also the subject to be painted The painting types applied for Factory No.1 are defined as below: No A Painting application Interior Inside wall (except Kitchen) Kitchen ceiling B Exterior Flat paint Texture paint Area (m2) 10585.83 210 374.7 707 All paints are Kansai with the detailed materials as below : 1/ Interior paint for walls: Putty Primer Finish coat Color code ECO Skimcoat for Interior Primer for Interior ECO-V N90 layer layers Putty Primer Finish coat Color code ECO Skimcoat for Interior Primer for Interior Spring Clean N90 layer layers 2/ Kitchen ceiling: 3/ Exterior Flat walls: SMC-Factory No.1/MS-Painting work Page CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation Putty Primer Finish coat Color code ECO Skimcoat for all Primer Sealer 1035 Weather Coat N85 Primer Texture coat Elastomeric coat Finish coat Color code Primer Sealer 1035 Kansai Texcoat Kansai Elastomeric coat Kansai Weather coat N85 layer layers 4/ Exterior texture Paint: SMC-Factory No.1/MS-Painting work Page layer layer layers layers CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation FLOW CHART AND DIRECTION OF WORK The work sequences of Painting on Concrete & Plaster are shown in the following flowchart SMC-Factory No.1/MS-Painting work Page 10 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation RC Structures, Plastered wall Start of Painting Covered by previous submittal Installing scaffolding & platform Preparation of surface Applying putty mastic layer Applying primer coat Applying under coat Applying finish coat Touch up & cleaning End CONSTRUCTION METHOD 7.1 PREPARATION WORKS a Scaffolding & platform: Safe and adequate scaffolding, platform, ladder will be provided to site before starting painting work They will be installed ready before starting to conform with all applicable requirement of workers’ operation b Mock-up: Each kind of interior and exterior painting will be made on an area of about 1m2 for approval of Engineer before applying for all building c Tools: Preparing the right tools will save the time and hassle of having to scramble for tools in the middle of painting work Some of essential items are: Sandpaper: for smoothing out uneven surfaces prior to painting Sanding block: to keep the sandpaper Scraper: to remove peeling paint from the surface Turpentine: to wipe off oil-based paints easily Clean rags: to wipe up splattered paint Masking tape: to block off objects like light switches, sockets from being painted Covers: old newspapers or canvasses can be used to cover the floor and furniture SMC-Factory No.1/MS-Painting work Page 11 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation Brushes and rollers: choose the right type according to purpose and surface As a rule, it is good to have a large brush or roller, and at least one or two small brushes for tight corners With some advanced paint techniques, make sure the correct tools to pull off the job, for e.g pencil liners, dragging brushes, shaped-stamp Paint tray: to mix paints and contain the roller Sticks: to mix and stir paints with Appropriate filler: to fill cracks or holes in the walls Filling knife: to fill the cracks Sponge and squeegee mop: to wash down walls and ceilings respectively Container: to soak brushes, rollers, etc and to hold other odds and ends Extension pole: to reach higher areas Ladder: if painting high up is necessary Protective gear: like face masks, caps, gloves, etc Comfortable old clothes: necessary items that because painting can be a messy business d Preparation works: - Remove as much materials, equipment as possible - Cover floor surfaces - Protect light switches, electrical sockets, window frames and woodwork with masking tape - Remove flaking or peeling paint with a scraper Then sand and dust off the surface - Patch up cracks or uneven surfaces with appropriate filler When filler is dry, sand and dust - off the area Make sure the surface is clean, grease-free and dry Wash surface with water & liquid detergent For heavy and stubborn stains: Use turpentine and wash thoroughly Fungus: Remove as above, followed by fungicidal wash or bleach e Surface preparation • Protect all equipment, light switches, electrical sockets, window/door frames before applying the putty • All defects of substrate have been repaired and accepted Substrate surface shall be sound, clean, dry and free from void, dust, grease, oil, dust or laitance Surface cleaning with stiff bristle brushing is required Plaster nibs and splashes shall be scraped off, care being taken to avoid damaging the surface • Mould growth can occur on plaster surfaces if drying out has been prolonged, especially in poor condition of ventilation The affected areas shall be treated with a surface biocide and kept under observation for a week or so, a further wash shall be applied if growth is renewed When growth has ceased and the surface is dry, paint coats shall be applied • All defective or loose plaster, hollow plaster, unsquared wall corners, crack lines shall be repaired with cutting and chipping out method then made good with the same type of cement mortar as previously used Use cutting machine to cut along marked lines at the depth of plaster thickness then use hand chisel to chip off plaster at cut areas • Slight cracks shall be made good with hard stopping, using gypsum paste with fine sand Large cracks to be cut out with the edges undercut, and filled with approved special cement, the edges being closely knit and the filling being levelled with the surrounding surface • Uneven areas on substrate surface that is less than 2.0 mm or unsquared wall corners that SMC-Factory No.1/MS-Painting work Page 12 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation discrepancy of angle shall not exceed degrees, the grinding method may be used to make surface flat but the grinding shall be well controlled and over grinding shall not be accepted • All groove lines of external and internal wall have been made correct in size and shape, location on walls • Before further treatment, any efflorescence, dust or any present on the surface shall be wiped down using a dry coarse rag or brushed off using a medium hard brush 7.2 SEQUENCE - Before starting painting work, surround areas such as door/window frames, machine, equipment… must be protected - Start with the ceiling before painting the walls Move on to the areas around doors, windows, cornices and finally skirting This sequence prevents paint splattering from the ceiling and spoiling other painted areas - Paint the difficult areas like corners and edges first so that it will be easier to cover large areas later - Paint should be applied in overlapping, continuous strokes Overlap strokes when moving from area to area - Paint up-down or left-to-right, depending on which is more convenient Gently and lightly finish off in an up-down stroke if possible - Always paint more than one coat of paint, allowing for appropriate drying time between coats - Surface preparation: The new masonry surface must be smoothed with emery-paper or grindstone and cleaned up Daub a putty mastic then smooth and fine before painting - Mixing: Carefully read instruction of manufacturer on label of paint container For normal use thinning is not usually necessary, but if required up to part of clean water to 10 parts of paint All ready-mixed paints must be stirred thoroughly before use Stir until the colour of the paint is homogenous - Practice: When the perfect putty mastic become dry and strong The primer sealer should be painted from to coats These coats help to resist alkalization, algae, fungi which is necessary to solidify the finish paint coats When the primer sealer coats are dry perfectly, the finish practice should be painted with coats that separated about hours from each other - Drying time: Depend on the kind of paint the drying time varies as follows: Touch dry : 15 ÷ 25 minutes; Drying time: 2÷4 hours 7.3 APPLICATION: a Putty application: Surface preparation: Ensuring that the surfaces have to be clean and smooth before Available moisture of surfaces is less than 12% (refer to manufacturer specification)  Mixing: Using ready mixed powder Rate of mixture water/powder depended on manufacturer’s instruction The powder should be put into water gradually to avoid clotted After the powder absorbs water, it is stirred by a handle stir machine or stick until getting the flabby and identical mixture Waiting for or 10 min., then stir again before using Practice:  Daub the putty on the surface at least two layers The putty mastic thickness of each layer should be less than mm  The fisrt layer will be applied horizontally then vertically for second layer or vice versa  Using steel trowel to press the slurry to the wall/ceiling surface for first layer  Between the plastering of the first and second layer, using sanding block and sand paper to smooth out uneven surface SMC-Factory No.1/MS-Painting work Page 13 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation  After the first layer has dried and been sanded, a second application will be made in a similar way  Repeat the sanding and touch up putty until get a smooth, fine, even surface  The total thickness of applied putty must not be more than 5.0mm thick  Wall surfaces around door openings and window openings shall be kept without putty application for sealant application until completion of door and window installation  Putty application onto groove lines in walls shall be in required coats and sanded to make smooth surface, straight edges and aligned for paint application Pin holes, blow holes in wall plaster surface or concrete surface shall be filled up properly  Curing time for each applied layer shall follow strictly manufacturer’s instructions but shall not be less than 24 hours before sanding  At areas where ceiling is to be installed, putty shall be applied along ceiling lines at least 10.0cm width above and below each side from the ceiling level then at least one finish coat to be applied for ceiling installation  Sanding work shall be carried out right after curing time finished Inspection:  Check the solidity, uniformity of putty to ensure that there will be no honeycomb, hole on the surface  Using straight bar and lighting the check the evenness, smoothness of surface a Sealer Application - Prior to sealant application, Subcontractor shall check and ensure the surface of sanded putty has been flat and cleaned, no dust remaining, no laitance - A combination of lighting method with 2.0m long aluminum ruler to check the flatness of sanded putty surface shall be recommended before sealer application - Substrate temperature shall not be below 10o C and above 35o C and at least 3o C above the dew point of the air - Subcontractor shall ensure the dilution, the consumption and the number of coats shall strictly conform to manufacturer’s instructions Thinning of sealer at site shall not be recommended - Curing time for each applied coat to be re-coated shall not be longer than hours The surface shall be dry and free from any contaminants prior to application of the subsequent coat f Paint Application  Acrylic emulsion paint application shall conform strictly to manufacturer’s instruction  Substrate surface shall be checked for cleaning and temperature, moisture and recorded by Subcontractor before paint application Substrate surface condition records shall be submitted to Kajima Vietnam as evidence during the final inspection of painting work  Use of scaffolding for interior wall painting shall not be allowed Ladder or chair ladder is required to be used  Colour of paint to be applied shall be confirmed by Kajima Vietnam with approved colour sample panel prior to application SMC-Factory No.1/MS-Painting work Page 14 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation  Application of each coat shall be inspected by Kajima Vietnam prior to recoating and drying time of each applied coat to re-coat shall not be less than hours;  Paint consumption for each coat must be as required by manufacturer and wet film thickness shall be measured with comb gauge at the time of application  Dilution of paint on site shall not be recommended In case a site dilution is required, conformance to manufacturer’s instructions shall be taken and measuring tools and mixing equipment must be available at site Without measuring tools and equipment, the dilution work shall not be started  No part mixing of components products is allowed under any circumstances  Paint application method shall be in the same to all areas, except areas where using method of application has not been suitable or cannot be used but the approval of Kajima Vietnam shall be received by Subcontractor before applying  Brush application may be allowed to areas where roller application cannot reach such as wall corners, groove lines, openings and positions adjacent to ceiling lines, etc…  Brush application shall follow the principle of perpendicular application of coats to avoid stripe phenomenon of applied paint  For gypsum board ceiling painting, roller application is required Protection to floor and wall and other adjacent items including MEP installed items during ceiling painting is required at the cost of Subcontractor  For wall skirting painting, unless specified otherwise on the drawings or contract, paint for wall skirting shall be easy to clean, odourless and exterior paint system Line marking for skirting shall be carried out before wall paint application  For exterior wall painting, unless indicated otherwise on contract, Subcontractor shall provide scaffolding system with dust mesh as protection to paint has just been applied from dust and strong wind In case it is raining during exterior painting, painting shall be stopped and only restarted when substrate surface has checked and met requirements for moisture and temperature Failure of exterior paint application caused by raining shall be re-applied after removal of failed paint coats at the cost of Subcontractor g Spraying compound for Texture coats of Exterior Walls Mask all adjacent areas (with sufficient area and adhesive properties)  Spray - Remove all overspray immediately Allow 0.6 m between gun nozzle and surface to be sprayed Spray Compound with gun nozzle 90 degree angle to surface Best results are obtained by confining length and height of spray area to body dimension of applicator (i.e height of reach and width of arm spread), continuing with additional spray areas until complete wall surface has been coated Plan spraying work to finish at joint line at end of work period Do not overlap previously sprayed dry compound Immediately remove any excess compound with a knife and return to hopper Re-spray vii Re-spray area with too little compound to conform to specified texture - Sprayed compound shall be fully cured at least 16 hours before paint coat application Top Coat Application Procedure: Top coat Material shall be prepared in accordance with manufacturer recommendation i Shake and stir top coat thoroughly to get complete pigment dispersion ii Use standard practice, roll or spray, to assure conformance to specification requirements Brush application may be used for small areas or touch up only iii High volume low pressure (HVLP) spray or conventional pressure feed spray Do not use SMC-Factory No.1/MS-Painting work Page 15 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation airless spray Only correct safety equipment shall be used at all times iv Use pressures and nozzles recommended by the product manufacturer v Spreading rates: As recommended by the product manufacturer vi In closed areas, use applicator masks and exhaust ventilation vii Texture spraying shall follow the below requirements: Heavy Texture: Use mm (1/3 inch) nozzle 3-4 kg/cm2 Medium Texture: Use mm (1/4 inch) nozzle 4-5 kgcm2 Fine Texture : Use mm (1/6 inch) nozzle 5-6 kg/cm2 SMC-Factory No.1/MS-Painting work Page 16 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation RESOURCES 8.1 TOOL & EQUIPMENT The equipment to be used for the construction of painting works is listed below No Description Specification Unit Q’ty Stir machine set Scaffolding set Remarks 8.2 MATERIALS a Material assurance All materials used for paint finishes shall be products of KANSAI as below: KANSAI INTERIOR & EXTERIOR SKIMCOAT KANSAI INTERIOR & EXTERIOR PRIMER KANSAI INTERIOR FINISH PAINT SMC-Factory No.1/MS-Painting work Page 17 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation KANSAI EXTERIOR FINISH PAINT h Sampling: Submit the following samples which shall be representative of the materials used in the permanent works for AEP paint system (Interior and Exterior): • • • • bags of putty of 20kg /bag cans of sealer of litres /can cans of AEP paint of litres /can painted sample panels of size A4 with all proposed coats i Materials handling, storage and delivery • Where paint materials are delivered to site, they shall be unloaded by hand and arranged tidily without broken cans, torn label of cans, seal broken or other damages Any damaged items shall be removed by the subcontractor • All paint shall be delivered to the site in manufacturer's sealed containers Each container shall be labelled by the manufacturer Labels shall give manufacturer's name, type of paint, formulation, colour of paint, instructions for application and other significant information • The Subcontractor shall show his approved of paint system samples with colour code to Kajima Vietnam for check and comparison during delivery inspection for acceptance • Materials such as putty bags, sealer cans shall be clear of the ground on an even surface and protected from rain, contamination or other damage • Material delivered should be stored at enclosed storage with 100mm above ground level and covered by plastic protection in order to prevent the moisture These packages should be stored in piles not more than bags high SMC-Factory No.1/MS-Painting work Page 18 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation QUALITY CONTROL 9.1 TOLERANCE: a Preparation: • Straightedge of 2.0m aluminum ruler: gap not exceed 2.0mm for substrate surface • Substrate moisture: not exceed 12% • Environment humidity: not exceed 75% • The substrate temperature: not be below 100 C j Application: • Thickness of applied putty layers : 1.0 mm ~ 3.0mm but total thickness not exceed 5.0mm • Dry film thickness of applied sealer coat :30 microns ~40 microns • Dry film thickness of applied paint coat: 30 microns ~40 microns and number of coats not less • - than coats Surface flatness: Straightedge of 2.0m aluminum ruler: gap not exceed 2.0mm for substrate surface; No gap between 2.0 m aluminum ruler edge and substrate surface after putty applied and sanded 9.2 INSPECTION: ACSC will give Request for Inspection (ITR) to Kajima Vietnam 24hours in advance so that inspection may be made of the works at the following times: Materials Delivery to Site Completion of surface preparation After application of prime or seal coats After application of undercoat After application of each subsequent coat At the completion of painting work and protection a Inspection of Preparation Check for substrate surface condition including: • Loose parts, laitance, cracks, hollowness, contaminant, spillage, etc… • Curing time, drying and moisture; • Flatness, • Groove lines, joint, wall corners, right angle, etc… • Cleaning and rubbing down k Inspection of Painting Painting sequence: - Number of coats; Curing time and dry time for re-coating Visual inspection: - Colour and texture grade: compare with approved colour samples Appearance: homogeneous colour, no waving, no spots, no stripes Surface: flatness, smoothness, no air bubble, no paint dust, no contaminants Equipment: lighting, 2.0m aluminum ruler Wet Film Thickness:   Applicable to all painted areas after each coat of paint has been applied Equipment/Standard: Comb gauge, paint consumption per each coating SMC-Factory No.1/MS-Painting work Page 19 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation 9.3 PROTECTION  Subcontractor shall provide the proper protection to his delivered materials at his cost to ensure the quality of his materials as approved ones  Subcontractor shall provide the protection to his works until the hand-over of his areas to other Subcontractors for next works with the witness of Kajima Vietnam Any damages to works before hand over shall be under Subcontractor’s responsibilities and shall be repaired by Subcontractor at his cost  Subcontractor shall keep his barricade and warning notice to restrict or forbid any traffic in his working areas, especially in areas where paint coatings freshly applied 9.4 DEALING WITH DEFECT Many problems can occur during painting Sometimes, they occur simultaneously Understanding the causes of some of these defects can make the paint job easier Here are some common paint defects and their solutions: Sagging Sagging happens when the paint drops downward after being applied on the surface It is caused by the pigment separating from the paint and settling at the bottom of the container and comes as a result of insufficient stirring or shaking during storage, storing for too long or under too much heat, or faulty thinning The solution: • Avoid storing in hot locations for long periods • Store in accordance with the manufacturer's recommendations • Thin only with appropriate recommended thinners Wrinkling Wrinkling happens when the paint forms film-like undulating waves Applying too much paint, or drying during high temperatures, or painting on a topcoat before the undercoat is dry can cause this defect to happen The solution • Avoid applying too much paint • Make sure no paint accumulates round bolts, rivets, etc • Wait until each coat dries before re-coating Decolourisation After paint is applied, it may fade or discolour This is caused by particles in the wall reacting with the paint when it is drying Decolourisation could also be caused by water seepage, or by contaminants in metal or wood The solution • Repair water seepage • Make sure surface is dry before painting SMC-Factory No.1/MS-Painting work Page 20 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation • Apply an alkaline-resistant or oil-based paint Peeling Peeling is caused by moisture on the wall, poor surface preparation or using the incorrect painting system This defect happens on walls as well as wood or metal surfaces The solution • Check and repair water seepage • Ensure walls are dry before painting • Use an alkali-resistant basecoat or sealer • Patch surface defects with putty Chalking Chalking occurs when ultraviolet rays cause the paint binder to disintegrate It can happen when interior paints are used for exterior surfaces The solution • • • Remove any unstable paint films Allow wall to dry thoroughly, and repaint with recommended paint Make sure paint is not adulterated with foreign materials Blistering This is caused by moisture being drawn through from the wall to the paint-wall interface The solution • Remove any unstable paint films Allow wall to dry thoroughly, and repaint with recommended paint Blisters Also caused by water seeping out of the wall surface Peeling, efflorescence, and watermarks are also caused by high moisture content in the wall surface The solution • Make sure the wall is completely dry before painting 10 RISK ASSESSMENT See attached Appendix No.3 SMC-Factory No.1/MS-Painting work Page 21 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI Architects & Construction Service Corporation 11 SAFETY PLAN With regard to health and safety control, all the works shall be carried out following KOA Safety regulations Some of safety measures are shown as below: No Description of job Working at height High scaffolding Contact chemical materials Unsanitary Condition with Site Hazards Paint contact to skin, eyes Injury of people/worker Preventive measures + Install scaffolding to provide sufficient working area on platform + Install the ladder for escalation + Install handrail around platform + Install warning tape, barrier to stop person enter the working area + Scaffolding must be installed on firm and secure base + Using base jack to adjust the level of scaffolding base + Using steel prop to support the scaffolding + Bracing the single scaffolding together + Worker must wear PPE mask, protective glasses Scattering of dirt/garbage and some chemicals Damage to neighborhood inhabitants + Avoid chemicals solution +Falling accident during installation rebar, formwork + Accident during casting concrete +Falling object from the height +Scaffolding collapse Hazard events Injury or death to workers or operators Injury of people/worker + Keep the before stop working 12 APPENDIX Appendix 1: Inspection test plan Appendix 2: Construction schedule Appendix 3: Risk assessment Appendix : Check list END SMC-Factory No.1/MS-Painting work Page 22 leaking of and other site clean Action by Forman / Supervisor / Worker Forman / Supervisor / Worker Forman / Supervisor / Worker Forman / Supervisor [...]... requirement of workers’ operation b Mock-up: Each kind of interior and exterior painting will be made on an area of about 1m2 for approval of Engineer before applying for all building c Tools: Preparing the right tools will save the time and hassle of having to scramble for tools in the middle of painting work Some of essential items are: Sandpaper: for smoothing out uneven surfaces prior to painting. .. No.1/MS -Painting work Page 17 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2 Architects & Construction Service Corporation KANSAI EXTERIOR FINISH PAINT h Sampling: Submit the following samples which shall be representative of the materials used in the permanent works for AEP paint system (Interior and Exterior): • • • • 3 bags of putty of 20kg /bag 3 cans of sealer of 5 litres /can 3 cans of AEP paint of 5 litres... Vietnam 24hours in advance so that inspection may be made of the works at the following times: 1 2 3 4 5 6 Materials Delivery to Site Completion of surface preparation After application of prime or seal coats After application of undercoat After application of each subsequent coat At the completion of painting work and protection a Inspection of Preparation Check for substrate surface condition including:... inspection of painting work  Use of scaffolding for interior wall painting shall not be allowed Ladder or chair ladder is required to be used  Colour of paint to be applied shall be confirmed by Kajima Vietnam with approved colour sample panel prior to application SMC-Factory No.1/MS -Painting work Page 14 CÔNG TY CỔ PHẦN XÂY LẮP THƯƠNG MẠI 2 Architects & Construction Service Corporation  Application of. .. rebar, formwork + Accident during casting concrete +Falling object from the height +Scaffolding collapse Hazard events Injury or death to workers or operators Injury of people/worker + Keep the before stop working 12 APPENDIX Appendix 1: Inspection test plan Appendix 2: Construction schedule Appendix 3: Risk assessment Appendix 4 : Check list END SMC-Factory No.1/MS -Painting work Page 22 leaking of and... Brush application shall follow the principle of perpendicular application of coats to avoid stripe phenomenon of applied paint  For gypsum board ceiling painting, roller application is required Protection to floor and wall and other adjacent items including MEP installed items during ceiling painting is required at the cost of Subcontractor  For wall skirting painting, unless specified otherwise on the... and safety control, all the works shall be carried out following KOA Safety regulations Some of safety measures are shown as below: No Description of job 1 Working at height 2 High scaffolding 3 Contact chemical materials 4 Unsanitary Condition with Site Hazards Paint contact to skin, eyes Injury of people/worker Preventive measures + Install scaffolding to provide sufficient working area on platform... Start of Painting Covered by previous submittal 2 Installing scaffolding & platform 3 Preparation of surface 4 Applying putty mastic layer 5 Applying primer coat 6 Applying under coat 7 Applying finish coat 8 Touch up & cleaning End 7 CONSTRUCTION METHOD 7.1 PREPARATION WORKS a Scaffolding & platform: Safe and adequate scaffolding, platform, ladder will be provided to site before starting painting work. .. angle to surface Best results are obtained by confining length and height of spray area to body dimension of applicator (i.e height of reach and width of arm spread), continuing with additional spray areas until complete wall surface has been coated Plan spraying work to finish at joint line at end of work period Do not overlap previously sprayed dry compound Immediately remove any excess compound with... provide the protection to his works until the hand-over of his areas to other Subcontractors for next works with the witness of Kajima Vietnam Any damages to works before hand over shall be under Subcontractor’s responsibilities and shall be repaired by Subcontractor at his cost  Subcontractor shall keep his barricade and warning notice to restrict or forbid any traffic in his working areas, especially