099123_Paint_5-2014.docx

SECTION 09910 - PAINTING PART 1 - GENERAL

1. 1 SECTION INCLUDES

A. Surface preparation and field application of paints and coatings for all areas affected by work of this project.

1.2 RELATED SECTIONS

A. Section 092400 Plastering.

1.3 SUBMITTALS

A. Product Data: Provide data on all finishing products.

B. Samples: Submit two samples, actual in size illustrating range of colors and textures available for each surface finishing product scheduled.

C. Manufacturer's Instructions: Indicate special surface preparation procedures, substrate conditions requiring special attention.

1.4 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing the Products specified in this section with minimum three years experience.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Deliver products to site in sealed and labeled containers; inspect to verify acceptability.

B. Container label to include manufacturer's name, type of paint, brand name, lot number, brand code, coverage, surface preparation, drying time, cleanup requirements, color designation, and instructions for mixing and reducing. Do not deliver to site containers larger than 20 kg in weight.

C. Store paint materials at minimum ambient temperature of 7 degrees C and a maximum of 32 degrees C, in ventilated area, and as required by manufacturer's instructions.

PART 2- PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering accessories that may be incorporated into the work include the following or approved equal:

1. Jotun, Egypt

2. Scib Chemicals, S.A.E.

3. Sika for Chemicals

2.2 COATING MATERIALS

A. Manufacturer: coating materials are to be approved brands and obtained from one approved manufacturer unless otherwise specified.

B. Emulsion paint: PVA resin based emulsion to produce a durable, flexible and water-resistant coating suitable for repeated washing and scrubbing.

C. Oil paint: oleo-resinous; non-toxic; drying to a smooth; highly opaque to produce a durable; flexible and water-resistant coating with excellent adhesion and color retention. Undercoat is to be suitable to receive further coatings. Finish is to be high gloss; semi-gloss; semi-gloss or matt; to be selected by the COR or designated representative.

D. Epoxy paint: epoxy paint shall have a high degree of resistance to acids, alkalis and water. It shall be easily applied over surfaces that have been primed with a primer containing an inhibitive pigment and shall present a glossy finish. One coat of primer and two finish coats shall be applied with minimum thickness of 0.075 mm per coat.

E. Acrylic paint: ready mixed; waterproof and decorative coating comprising synthetic rubber base; selected pigment sand line aggregate for texture surfaces. The following selection of paint shall be applied as shown on the drawing.

2.3 PREPARATION AND PRIMING MATERIALS

A. Preparation materials: cleaning, stopping, filling, sealing etc... materials are to be types recommended by their manufacturers and the coating manufacturer for the situation and surfaces being prepared, unless otherwise specified.

B. Primer for concrete; masonry, rendering and plaster: natural oil and alkali resistant resin based priming paint.

C. Primer for wood: ready mixed aluminum priming paint, water-borne priming paint, or solvent-borne priming paint to provide high moisture resistance and suitable for use with type of wood and preservative treatment.

D. Primer for iron and steel: non-leaded based priming paint.

E. Primer for galvanized iron and steel: zinc chromate priming paint.

PART 3 - EXECUTION

3.1 GENERALLY

A. Quality of work: operatives must be appropriately skilled and experienced in the use of specified materials and methods of application. Prepare surfaces and apply coatings in accordance with manufacturer’s recommendations.

B. Coating materials:

1. Where possible are to be from one manufacturing batch; where more than one batch is to be used, keep separate, allocate to distinct parts or areas of the work and inform the COR or designated representative accordingly

2. To be delivered in sealed containers, clearly labeled with type of material, brand name, intended use and manufacturer’s batch numbers

3. Store in a clean, dry area protected from extreme temperatures and in accordance with manufacturer’s recommendations; use in order of delivery.

C. Compatibility:

1. Check that all materials to be used are recommended by their manufacturers for the particular surface and conditions of exposure and that they are compatible with each other.

2. Where surfaces have been treated with preservatives, check with treatment manufacturer that coating materials are compatible with the treatment and do not inhibit its performance.

3. Inform the COR or designated representative of any discrepancy in specification of coatings and obtain instructions before proceeding with application.

D. Color range: carry out decoration in colours or within range produce by particular coating manufacturer as appropriate and as selected by the COR or designated representative.

E. Off site work: off site preparation and coating is to be carried out under cover in a suitable environment with adequate lighting. Store all items, both before and after coating, in a clean, dry area protected from the weather and mechanical damage, properly stacked with spaces to permit air circulation and prevent sticking of surfaces.

F. Protection: adequately protect both internal and external surfaces which are not to be coated, by covering with dust sheets or other suitable materials. Place ”wet paint ”signs and provide barriers where necessary to prevent damage to freshly applied coatings.

G. Control samples: for each type of coating, prepare sample areas of the finished work, including preparation, in advance of the remainder. Make arrangements with the COR or designated representative for the full time supervision of the application of each coat. Obtain approval of appearance before proceeding. Control samples may, at the COR or designated representative’s discretion, be used as the basis for comparative testing of dry film thickness of complete coating systems.

H. Inspection of work: permit coating manufacturers to inspect the work in progress and take samples of their products from site if requested.

I. Inspection of work: inspection of the whole of the work at each stage may be made, at the direction of the COR or designated representative. Agree with the COR or designated representative a program which will facilitate such inspections and notify him when each part and stage of the work is ready for inspection. Do not proceed with subsequent stages of the work until authorized.

3.2 PREPARATION

A. Preparation materials: use in accordance with manufacturer’s recommendations.

B. Masonry and rendering: remove dirt, surface deposits, loose and flaking material with a stiff brush. Fill holes and cracks flush with surface.

C. Plaster: remove dirt and surface deposits with a stiff brush. Rub down to remove nibs, trowel marks and plaster splashes. Lightly rub over-trowelled glossy plaster with worn abrasive paper. Fill all depressions, holes and cracks and lightly rub down flush with surface.

D. Plasterboard: fill imperfections and/or minor damage to leave a smooth; blemish-free surface.

E. Uncoated wood: Ensure that large and loose knots are removed and made good with sound wood of the same species and sand flush. Ensure that surfaces are clean and remove oil, grease and excessive natural oils with suitable solvents. Sand to a smooth, even finish with arrises rounded or eased. Remove resinous exudations by heat. Ensure that heads of fastenings are countersunk sufficiently to hold stopping / filling; fill nail and screw holes, joints, cracks, holes, depressions, open or coarse grain with stopper / filler worked well in and finished off flush with surface; sand smooth and remove dust.

F. Priming wood: before priming preservative treated wood ensure that any cut surfaces have been re- treated and solvents have completely dried out. Apply primer to all surfaces including rebates, beads, backs etc... which will be concealed when components are fixed in place. Liberally coat all end grain, allow soaking in, and then, re-coating.

G. Pre-primed wood: remove dirt and grease from satisfactorily pre-primed surfaces and sand lightly.

Sand down chalking, powdery and other defective areas to the bare surface, remove dust, and re-prime as necessary.

H. Stopping, filling and priming: apply oil based stoppers / fillers after priming. Apply water based stoppers / fillers before priming unless otherwise recommended by manufacturer. Patch prime water based stoppers / fillers when applied after priming.

I. Stopper/filler for clear coatings: carefully adjust color so that after coatings have been applied it closely matches the color of the wood, to approval.

J. Concealed metal surfaces: apply black bitumen coating solution to concealed surfaces of metal components before fixing.

K. External doors: prime and paint bottom edges before hanging.

L. Ironmongery: remove from surfaces to be coated and refix on completion. Do not remove hinges unless instructed to do so.

M. Doors and windows: ensure that doors and opening windows etc... are eased as necessary before coating. Prime any resulting bare areas.

N. Galvanized surfaces: remove surface contamination and oils and wash with solvent. Apply coat of etching primer.

O. Uncoated steel and iron surfaces: remove grease, mill scale, weld splatter, dirt, and rust. Where heavy coatings of scale are evident, remove by hand wire brushing or sandblasting; clean by washing with solvent. Apply a treatment of phosphoric acid solution, ensuring weld joints, bolts, and nuts are similarly cleaned. Spot prime paint after repairs.

P. Shop primed steel surfaces: sand and scrape to remove loose primer and rust. Feather edges to make touch-up patches inconspicuous. Clean surfaces with solvent. Prime bare steel surfaces.

3.3 APPLICATION

A. Generally: apply products in accordance with manufacturer’s instructions

B. Unsuitable conditions: do not apply coatings to surfaces affected by moisture, when relative humidity is more than 80% or when heat is likely to cause blistering or wrinkling. Take necessary precautions including restrictions on working hours, providing temporary protection and allowing extra drying time, to ensure that coatings are not adversely affected by climatic conditions before, during and after application.

C. Painting generally:

1. Do not thin or intermix paint materials unless otherwise specified or recommended; if materials are found to have been thinned without authorization, the COR or designated representative may require the application of additional coats.

2. Apply priming coats as soon as possible on the same day a preparation is completed; ensure that they are of adequate thickness and suit surface porosity.

3. Adjacent coating of the same material must be of a different tint to ensure that each coat provides complete coverage.

4. Apply coatings by brush unless otherwise specified or approved; keep brushes, tools and equipment in a clean condition.

5. Apply coatings to clean, dust free, suitably dry surfaces in dry atmospheric conditions and after any previous coats have hardened; lightly abrade between coats as necessary.

6. Apply coatings evenly to give smooth finish of uniform color, free from brush marks, nibs, sags, runs and other defects; cut in neatly and cleanly; do not splash or mark adjacent surfaces.

7. Keep all surfaces clean and free from dust during coating and drying; adequately protect completed work from damage.

D. Completion: ensure that opening lights and other moving parts move freely. Remove all masking tape and protective wrappings.

3.4 SCHEDULE - EXTERIOR SURFACES

A. Concrete, cement plaster:

1. One coat of alkali resistant primer.

2. Two coats of block filler.

3. A minimum of two coats of acrylic emulsion paint.

B. Gypsum wallboard:

1. One coat of exterior gypsum board primer.

2. A minimum of two coats of acrylic emulsion paint.

C. Steel: All steel surfaces shall be painted using enamel, Semi-gloss paints .

D. Floors: Self leveling filler and self-leveling Epoxy paint.

END OF SECTION 09910

PAINT

Housing Compounds Electric Upgrade 5-2014 099123/ 5