Method Statement of Painting work

GENERAL This method statement describes the methodology for Emulsion Painting on surface of concrete and plaster in Factory 01 - SMC project... The concrete work, plaster work were cover

Revision History

Submitted by ACSC

Prepared by Lê Long H uậu Deputy Site Manger

Reviewed by Nguy n Hoàng Trinhễn Hoàng Trinh Site Manager

Approved by Nguy n Văn Trungễn Hoàng Trinh Project Manager

1 INTRODUCTION 5

1.1 GENERAL 5

1.2 DEFINITIONS: 5

1.3 SCOPE OF WORK 5

1.4 BUILDING DESCRIPTION: 6

2 ORGANIZATION 8

2.1 ORGANIZATION CHART (Factory No.1) 8

2.2 ASSIGNMENT 8

3 SCHEDULE 9

4 SPECIFIC STANDARD 9

5 SCOPE OF EMULSION PAINTING WORKS: 10

6 FLOW CHART AND DIRECTION OF WORK 12

7 CONSTRUCTION METHOD 13

7.1 PREPARATION WORKS 13

a Scaffolding & platform: 13

b Mock-up: 13

c Tools: 13

d Preparation works: 13

e Surface preparation 14

7.2 SEQUENCE 14

7.3 APPLICATION: 15

a Putty application: 15

b Sealer Application 15

c Paint Application 16

d Spraying compound for Texture coats of Exterior Walls 16

8 RESOURCES 18

8.1 TOOL & EQUIPMENT 18

9.1 TOLERANCE: 20

a Preparation: 20

b Application: 20

9.2 INSPECTION: 20

a Inspection of Preparation 20

b Inspection of Painting 20

9.3 PROTECTION 21

9.4 DEALING WITH DEFECT 21

10 RISK ASSESSMENT 23

11 SAFETY PLAN 23

12 APPENDIX 24

11 QUALITY CONTROL

Appendix-1: Inspection test plan

Appendix-2: Construction schedule

Appendix-3: Risk Assessment

1 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 andplastering work completed The concrete work, plaster work were covered by another submittals, thereforethey 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 materialsuch 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 1 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 relatedactivities 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

2 Finishing works included:

- Building purpose :Factory

- Foundation : Spun piles (D300, 350, 400 mm)

- Structure : RC structures + steel rafter; Slab on grade

o Factory Ground floor slab : 300 mm thk

o Storage/Utilities Ground Floor slab : 150 mm thk

2 ORGANIZATION

2.1 ORGANIZATION CHART (Factory No.1)

2.2 ASSIGNMENT

Position Factory No.1 Factory No.9

Deputy Site manager NGUYỄN TRÍ KHOA TRẦN AN TOÀN

Site Engineer NGUYỄN MINH TUẤN

NGUYỄN VĂN HÀO

LÊ VĂN TUẤTBÙI CÔNG HUYNHQA&QC Engineer PHAN QUỐC TRƯỜNG NGUYỄN ANH ĐỨC

Safety Supervision ĐỖ VŨ QUYỀN ANH PHẠM VĂN MẠNH

Deputy Site Manager 2

LÊ LONG HẬU (MP: 093 734 3055)

Nguyễn Minh Tuấn (MP: 098 314 5069)

Nguyễn Văn Hào (MP: 0938.722.730)

3 SCHEDULE

Construction Schedule of painting work is attached in Appendix-2

4 SPECIFIC STANDARD

Painting works should be carried out in accordance with the requirements of:

- SMC MANUFACTURING (VIET NAM) FACTORY-PHASE 1 PROJECT Specification finishing works

- Current Vietnamese Construction Standards

 TCVN 6934-2001: Wall paints- Emulsion paints- Specification and test methods

 TCVN 8652-2012: Wall emulsion paints- Specifications

 TCVN 5674-1992: Finished works in construction- Execution, check and acceptance (group H)

 TCVN 9405-2012: Wall paints- Emulsion paint- Methods for determination of resistance to damp heat

5 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 Painting application Area (m2)

All paints are Kansai with the detailed materials as below :

1/ Interior paint for walls:

Putty ECO Skimcoat for InteriorPrimer Primer for Interior 1 layerFinish coat ECO-V 2 layersColor code N90

2/ Kitchen ceiling:

Putty ECO Skimcoat for InteriorPrimer Primer for Interior 1 layerFinish coat Spring Clean 2 layersColor code N90

3/ Exterior Flat walls:

Putty ECO Skimcoat for allPrimer Primer Sealer 1035 1 layerFinish coat Weather Coat 2 layersColor code N85

4/ Exterior texture Paint:

Primer Primer Sealer 1035 1 layerTexture coat Kansai Texcoat 1 layerElastomeric coat Kansai Elastomeric coat 2 layersFinish coat Kansai Weather coat 2 layersColor code N85

6 FLOW CHART AND DIRECTION OF WORK

The work sequences of Painting on Concrete & Plaster are shown in the following flowchart

1 RC Structures, Plastered wall

Covered by previous submittal

2 Installing scaffolding & platform Start of Painting

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

They will be installed ready before starting to conform with all applicable requirement of workers’ operation

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

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

- 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, dryand free from void, dust, grease, oil, dust or laitance Surface cleaning with stiff bristle brushing isrequired Plaster nibs and splashes shall be scraped off, care being taken to avoid damaging thesurface

 Mould growth can occur on plaster surfaces if drying out has been prolonged, especially in poorcondition of ventilation The affected areas shall be treated with a surface biocide and kept underobservation for a week or so, a further wash shall be applied if growth is renewed When growthhas 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 repairedwith cutting and chipping out method then made good with the same type of cement mortar aspreviously used Use cutting machine to cut along marked lines at the depth of plaster thickness thenuse hand chisel to chip off plaster at cut areas

 Slight cracks shall be made good with hard stopping, using gypsum paste with fine sand Largecracks to be cut out with the edges undercut, and filled with approved special cement, the edgesbeing 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 thatdiscrepancy of angle shall not exceed 2 degrees, the grinding method may be used to make surfaceflat 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

- 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 down or left-to-right, depending on which is more convenient Gently and lightly finish off in an down stroke if possible

up 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 notusually necessary, but if required up to 1 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 1 to

2 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 2 coats that

separated about 2 hours from each other

- Drying time : Depend on the kind of paint the drying time varies as follows: Touch dry : 15 ÷ 25 minutes; Dryingtime: 2÷4 hours

Practice:

 Daub the putty on the surface at least two layers The putty mastic thickness of each layer should be less than 3 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

 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 10.0cmwidth 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

- Substrate temperature shall not be below 10oC and above 35oC and at least 3oC 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 4 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 bySubcontractor before paint application Substrate surface condition records shall be submitted toKajima 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 samplepanel prior to application

 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 1 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 tomanufacturer’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 2 components products is allowed under any circumstances

 Paint application method shall be in the same to all areas, except areas where using method ofapplication has not been suitable or cannot be used but the approval of Kajima Vietnam shall bereceived 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 stripephenomenon of applied paint

 For gypsum board ceiling painting, roller application is required Protection to floor and wall and otheradjacent items including MEP installed items during ceiling painting is required at the cost ofSubcontractor

 For wall skirting painting, unless specified otherwise on the drawings or contract, paint for wallskirting shall be easy to clean, odourless and exterior paint system Line marking for skirting shall becarried out before wall paint application

 For exterior wall painting, unless indicated otherwise on contract, Subcontractor shall providescaffolding system with dust mesh as protection to paint has just been applied from dust and strongwind In case it is raining during exterior painting, painting shall be stopped and only re-started whensubstrate surface has checked and met requirements for moisture and temperature Failure of exteriorpaint application caused by raining shall be re-applied after removal of failed paint coats at the cost ofSubcontractor

g Spraying compound for Texture coats of Exterior Walls

Mask all adjacent areas (with sufficient area and adhesive properties)

 Spray.