master_spec_09900_en.pdf

Section 09900 1

SECTION 09900

PAINTS AND COATINGS

PART 1 - GENERAL

1.1 APPLICABLE PUBLICATIONS: The following publications of the issues listed below, but referred to elsewhere by basic designation only, form a part of this specification to the extent indicated by the references thereto:

ITALIAN NATIONAL INSTITUTE FOR THE UNIFICATION OF STANDARDS (UNI)

PUBLICATIONS

UNI 8760 (1985) Systems for Continuously Applied

Plastic Coatings - Criteria for Technical Information

ITALIAN/EUROPEAN HARMONIZATION STANDARDS (UNI EN)(UNI ENV)(CEI EN) (UNI

EN ISO)(UNI ISO)

UNI EN 463 (1995) Protective Clothing for Use against

Liquid Chemicals - Test Method:

Determination of Resistance to Penetration by a Jet of Liquid (JET SET)

UNI ISO 6504-1 (1990) Paints and Varnishes -

Determination of Hiding Power - Part 1:

Kubelka-Munk Method for White and Light- Colored Paints

UNI EN ISO 3251 (1998) Paints and Varnishes -

Determination of Non-Volatile Matter of Paints, Varnishes and Binders for Paints and Varnishes

ITALIAN LAWS

Law No.706 (19.7.1961) Use of white lead in painting

Law No.245 (5.3.1963)Limitation in Use of Benzol and

By-Products.

Legislative Decree No. 494 (14/08/1996) Implementation of the

Instruction 92/57/CEE Concerning the Minimum Safety and Health Requirements to be Accomplished in Temporary or Mobile Work Sites

Legislative Decree No. 626 (19/09/1994) Realization of CEE

Requirements for Improving Safety and Health of Workers on Work Site

Legislative Decree No. 22 (5/02/1997) Implementation of the

Instructions 91/56/CEE Concerning Hazardous Wastes 91/689/CEE and 94/62/CEE Concerning Packaging of Wastes

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D.P.R No. 303 (19/03/1956) General Norms for Work Hygiene

1.2 SUBMITTALS

1.2.1 Samples

For color conformance.

1.2.2 Manufacturers Catalog Data

For each coating.

1.3 QUALIFICATION OF AIRLESS SPRAY PAINT APPLICATORS

Application of paint by airless spray shall be accomplished by firms or persons possessing the experience requirements set forth herein. Prior to any application of coating by airless spray, submit data for approval to the Contracting Officer that indicates that the Contractor has successfully applied paint by airless spray or has a firm contractual agreement with a subcontractor having such required experience. The data shall include the names and locations of not less than two sites where the Contractor or Subcontractor referred to herein has applied paint by airless spray. Indicate the type and design of the equipment, including safety devices, and certify that the method of applying coating has been performed satisfactorily.

1.4 APPROVAL OF MATERIALS

No paint or other coating shall be applied before required test reports, certificates, and requests for substitutions have been submitted and the respective material approved for use on this project. All requests for substitutions shall be submitted to the Contracting Officer for approval.

Each such request shall include specific identification of the proposed substitute, justification for the necessity of the substitution, certified test reports of the proposed substitute, including all tests required by the specification for the substituted material; and a tabulation of the specified material compared to the proposed substitute.

The tabulation shall include all tests, composition of both pigment and vehicle, and quantitative requirements for both the specified and the proposed material; clearly indicate any deviations from specified requirements.

1.5 DELIVERY AND STORAGE

Deliver paint and coating materials in unbroken original packages bearing the manufacturer’s name and brand designation, specification number, batch number, color, date of manufacture, and manufacturer’s instructions for application. Storage of paints and paint materials and the mixing of paints shall be restricted to the locations directed.

1.6 SELECTION OF COLORS

Colors of finish coats shall be as selected by the Contracting Officer’s

Technical Representative. Manufacturer's names and color designations, if indicated, are used for the purpose of color designations only and are acceptable for use on this project only if they conform to all specified requirements. Products of other manufacturers are acceptable if the

Section 09900 3 colors closely approximate colors indicated and the product conforms to all specified requirements.

1.7 DESCRIPTION OF WORK

Surfaces concealed by portable objects and by surface mounted articles readily detachable by removal of fasteners such as screws and bolts are included in the work. Surfaces concealed and made inaccessible by panel boards, fixed ductwork, machinery and equipment fixed in place are not included. Remove articles obstructing access to those surfaces specified to be included in the work and restore to their original position on completion. Do not coat surfaces in concealed spaces unless otherwise indicated. Concealed spaces are defined as spaces above suspended ceilings, furred spaces, attic spaces, crawl spaces, and chases. Do not coat steel surfaces to be imbedded in concrete. Do not coat copper, stainless steel and aluminum, except where specifically so stated. Do not coat new factory finished materials except those that require identification or color-coding and those factory-finished surfaces to their original condition. Do not paint zinc-coated ducts, zinc-coated pipe, or copper pipe under insulation or in concealed spaces.

1.7.1 Exterior Painting

Includes new surfaces, existing previously coated surfaces, including items on or a part of the roofs.

1.7.2 Interior Painting

Includes new surfaces, existing previously coated surfaces of the building(s) and appurtenances of the types listed. Where a space or surface are indicated to be painted, include the painting of exposed piping, ductwork, and all other contiguous surfaces in the work unless indicated otherwise.

1.7.3 Fire Protection, Mechanical, and Electrical Painting

Includes the field coating of piping, conduit, ductwork, supports, hangers, air grilles, registers, miscellaneous metal work and insulation coverings, except as specified otherwise herein. Do not coat new zinc-coated, aluminum and copper surfaces under insulation. Do not coat new aluminum jacket on piping. New exterior ferrous piping shall be coated prior to insulating. Do not coat new interior ferrous piping under insulation.

PART 2 - PRODUCTS

2.1 MATERIALS

Conform to the following requirements.

2.1.1 Paint products shall be manufactured by one of the following:

a. BALDINI VERNICI S.P.A.

Via IV Novembre 55016 Porcari (Lucca) Tel. 0583.2901 Fax 0583.211060

4 Section 09900

b. MAX MEYER DUCO Via Comasina, 121 20161 Milano Tel: 02/6404.1 Fax: 02/64042363 http: www.maxmeyerduco.com

c. SIKKENS S.P.A.

AKZO Nobel Coatings Via Benedetto Croce, 11 20090 Cesano Boscone, Milano Tel: 02.48605220

Fax: 02.4501250

Other manufactures meeting the requirements of this specification are acceptable.

2.1.2 Products not specified by a specific reference number shall comply with the following requirements.

2.2 PRODUCTS REQUIREMENTS

2.2.1 Primer/Sealer

2.2.1.1 Primer/ Interior Latex Sealer for Plaster and Masonry:

Volume Solids: 25.7% (white color) Solids by Weight: 41.3%

2.2.1.2 Alkyd zinc chromate primer for sandblasted and galvanized steel, aluminum and alloys:

Volume Solids: 42.0% Solids by Weight: 60.0%

2.2.1.3 Concrete Primer: A chlorinated rubber modified with plasticizers.

Solids by Weight: 32.0% Solids by Volume: 22.0%

2.2.2 Latex Paints:

2.2.2.1 Interior Latex Paint:

Volume Solids: 32.0% (white color) Solids by Weight: 52.0%

2.2.2.2 Acrylic Latex Paint, Interior/Exterior:

Volume Solids: 32.0% Solids by Weight: 52.0%

2.2.3 Enamel:

2.2.3.1 Alkyd Resin Gloss Enamel:

Volume Solids: 43.1% Solids by Weight: 65.0%

Section 09900 5

2.2.3.2 Oleosynthetic Gloss Enamel for Alkyd Primed Steel:

Volume Solids: 52.0% Solids by Weight: 72.0%

2.2.3.3 Semi-Gloss Enamel: Oleosynthetic Matte Enamel:

Volume Solids: 46.0% (white color) Solids by Weight: 70.0%

2.2.3.4 Varnish

Alkyd resin type, natural transparent color, with ultraviolet protection.

Varnish for factory finished wood doors shall be provided by the door manufacturer.

2.2.3.5 Epoxy Floor Coating

Epoxy floor coating shall be a two-component epoxy resin for the hardening impregnation of concrete. Coating shall be reflective transparent liquid with good capillarity action, capable of being applied with a brush or roller.

2.3 LEAD CONTENT

Use of coatings having a lead content is not permitted.

2.4 CHROMATE CONTENT

Do not use coatings containing zinc-chromate or strontium-chromate.

Zinc-phosphate may be used.

2.5 ASBESTOS CONTENT

Materials shall not contain asbestos.

2.6 MERCURY CONTENT

Materials shall not contain mercury or mercury compounds.

2.7 SILICA SAND

The use of free-silica (crystalline silica) as a component of the paint formulation is prohibited.

2.8 HUMAN CARCINOGENS

Materials shall not contain confirmed human carcinogens or suspected human carcinogens.

2.9 TOXIC MATERIALS

To protect personnel from overexposure to toxic materials, conform to Legislative Decree No. 22, Legislative Decree No. 626, D.P.R No. 303, and to the most stringent guidance of:

a. The chemical manufacturer when using mineral spirits, or other chemicals. Use impermeable gloves, chemical goggles or

6 Section 09900 faceshield, and other recommended protective clothing and equipment to avoid exposure of skin, eyes, and respiratory system. Conduct work in a manner to minimize exposure of building occupants and the general public.

b. Threshold limit values for chemical substances and physical gents and biological exposure indices.

c. Manufacturer's material safety data sheets (MSDS).

PART 3 - EXECUTION

3.1 PROTECTION OF AREAS AND SPACES

Remove, mask, or otherwise protect such items as hardware, hardware accessories, machined surfaces, cover plates, lighting fixtures, and similar items in contact with coated surfaces, prior to surface preparation and painting operations. Following completion of painting, reinstall removed items utilizing workman skilled in the trades involved for such removal and reinstallation. Protect from contamination by coating materials all surfaces not to be coated. Restore surfaces that are contaminated by painting materials to original condition.

3.2 PREPARATION OF SURFACES

Remove all dirt, rust, scale, splinters, loose particles, disintegrated coatings, grease, oil and other deleterious substances from all surfaces which are to be coated or otherwise finished. Allow putty to set one week before coating. Calking and glazing compounds shall be allowed to cure for times stated in manufacturer's literature prior to being coated.

Inspect surfaces after preparation and receive approval before application of any coatings. On surfaces to be coated with water thinned coatings, spot prime with a brush all exposed nails and other ferrous metal with zinc chromate primer.

3.2.1 Defects in Existing Surfaces

Repair, smooth, sand, spackle, or otherwise threat to render practically imperceptible in the finished work defects such as scratches, nicks, cracks, gouges, spalls, alligatoring, and irregularities due to partial peeling of previous paint coatings. Where impractical to satisfactorily eliminate the defects by other means, remove existing coatings from the entire surface, repair the surface as necessary, prime and repaint.

Where peeling is general over an area including self-contained portions of a surface, remove all paint in such area and sand out the edges of such removal to provide imperceptible transition.

3.2.2 Wiping of Surfaces

On all previously painted surfaces that are to receive oil-based coatings, except stucco and similarly rough surfaces, after all other cleaning operations and wire brushing and sanding are completed, wipe down with clean rags saturated with mineral spirits and allow to dry.

Such wiping shall immediately precede the application of the first coat of any coating, unless specified otherwise.

3.2.3 Concrete and Masonry

Section 09900 7

Remove dirt, fungus, grease and oil prior to application of coatings.

Wash new and previously unpainted surfaces with a solution of from 60 to 230 ml of trisodium phosphate per liter of hot water and then rinse thoroughly with fresh water. Wash previously coated surfaces with a suitable detergent and rinse thoroughly. Remove glaze, all loose particles, and scale by wire brushing. Remove efflorescence by scraping, wire brushing, and washing with a 5 to 10 percent by weight aqueous solution of hydrochloric (muriatic) acid and then wash thoroughly with fresh water, removing all traces of the acid. Give all new surfaces to be painted with other than cement-water paint a neutralizing treatment consisting of 250 grams of zinc sulfate in one liter of warm water.

Apply the neutralizer liberally and allow to dry, then rinse the surfaces thoroughly with clean water and allow to dry for not less than 48 hours before paint is applied.

3.2.4 Plaster

Prior to painting, all joints, cracks, holes, and other surface defects shall be repaired with patching plaster or spackling compound and sanded out smooth. New plaster to be coated shall have an instrument-measured moisture content of not more than 8 percent. In addition to moisture content requirements, plaster shall be allowed to age a minimum of 30 days before application of coatings.

3.2.5 New Unprimed Metal Surfaces, Except Hot Metal Surfaces

Solvent clean zinc-coated surfaces with mineral spirits and wipe dry with clean, dry cloths. Treat aluminum surfaces to be painted with a 10-percent aqueous solution of chromic acid at a temperature of not less than 60 degrees Centigrade for 3 to 5 minutes and rinse thoroughly with clean warm water. Immediately after cleaning and treating, apply pretreatment wash primer, to a dry film thickness of 5 to 12 microns on zinc-coated, aluminum, brass, copper and ferrous surfaces. Apply primer as soon as practicable after pretreatment has dried.

3.2.6 Existing Metal Surfaces to be Coated, Except Hot Metal Surfaces

Remove all deleterious substances from surfaces as specified herein; sand paper, wire brush, or rub with steel wool over their entire surfaces and scrape where necessary to remove loose paint. Clean all rusted spots down to bare metal including spots where rust discoloration remains in deep pits. Otherwise, clean the surfaces down to bright metal.

Immediately after such cleaning and before any rust has formed, coat the bare surfaces with rust arresting compound. After the compound is thoroughly dry and hard, apply primer coats specified for new metal surfaces.

3.2.7 Preparation of Wood and Plywood Surfaces to be Coated

Prepare new and existing coated plywood and wood surfaces as follows:

a. Surface Cleaning: Surfaces shall be free from dust and other deleterious substances and in a condition approved by the Contracting Officer’s Technical Representative prior to receiving paint and other finish. Do not use water to clean uncoated wood.

Scrape to remove loose coatings. Lightly sand to roughen the entire area of previously enamel-coated wood surfaces.

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b. Removal of Fungus and Mold: Wash existing coated surfaces with a solution composed of 0.2 liter trisodium phosphate, 0.1 liter household detergent, 1.6 liters 5 percent sodium hypochlorite solution and 4.8 liters of warm water. Rinse thoroughly with fresh water.

c. Cosmetic Repair of Minor Defects:

1. Knots and Resinous Wood: Prior to application of coating, cover knots and stains with two coats of 1.3-kg-cut shellac varnish, plasticized with 0.14 liters of castor oil per liter. Scrape away existing coatings from knotty areas, and sand before treating. Prime before applying any putty over shellacked area.

2. Open Joints and Other Openings: Fill with whiting putty.

Sand smooth after putty has dried.

3. Checking: Where checking of the wood is present, sand the surface, wipe and apply a coat of pigmented orange shellac.

Allow to dry before paint is applied.

d. Cracks and Nailheads: Set and putty stop nailheads and putty cracks after the prime coat has dried.

3.3 APPLICATION

The finished surfaces shall be free from runs, drops, ridges, waves, laps, brush marks, and variations in colors. Avoid contamination of other surfaces and public and private property in the area; repair all damage thereto. Sufficient time shall be allowed between coats to permit thorough drying, and each coat shall be in proper condition to receive the next coat. Each coat shall cover completely the surface of the preceding coat of surface; there shall be an easily perceptible difference in shades of successive coats. Thoroughly clean surfaces to be coated. Interior areas shall be broom-clean and dust-free before and during the application of coating material. Prior to installation, use two coats of the designated primer to treat and prime metal surfaces that will be inaccessible after installation. Thoroughly work painting materials into all joints, crevices, and open spaces. Finished surfaces shall be smooth, even and free of defects. Retouch damaged painting before applying succeeding coats of paint. Procure and utilize the engineering controls and/or personnel protective equipment necessary for safe and effective application of specified paint systems.

3.3.1 Equipment

Apply coatings carefully with good, clean brushes, or approved spray equipment, except as differently specified. Spray areas made inaccessible to brushing by dusts and other equipment. Use airless type spray equipment. Use approved rollers for the application of flat latex coatings to interior walls and ceilings.

3.3.2 Thinning of Paints

Reduce paints to proper brushing consistency by adding fresh paint, except when thinning is mandatory for the type of paint to be used, obtain written permission from the Contracting Officer to use thinners.

Section 09900 9

The written permission shall include quantities and types of thinners to be used.

3.3.3 Environmental Conditions

Do not apply exterior coatings in foggy or rainy weather or when the temperature of the air at the surface is below 7 degrees Centigrade or over 35 degrees Centigrade, unless approved by the Contracting Officer’s Technical Representative. Apply interior coatings when the surfaces to be painted are dry and the temperature can be kept above 7 degrees Centigrade and below 35 degrees Centigrade during the application of ordinary paints and between 18 degrees Centigrade and 35 degrees Centigrade during the application of enamels and varnishes.

3.3.4 Paint Systems

New surfaces, existing surfaces made bare by cleaning operations, and existing unpainted surfaces shall receive the following coatings conforming to the respective specifications listed. Existing surfaces to be painted shall receive the following coatings conforming to the respective specifications listed, except that pretreatments, sealers, fillers, and primers need not be provided on surfaces where existing coatings are firmly adhered and in good condition. Apply paints, primers, varnishes, enamels, undercoats and other coatings to a dry film thickness as specified in the following tables. Where coating thickness is specified, it is the minimum dry film thickness.

TABLE 1

EXTERIOR METAL SURFACES

A. New steel that has been blast-cleaned:

DFT

(Dry Film Thickness)

Primer: Alkyd type, zinc-molybdate 0.0375 mm DFT Intermediate: Enamel, alkyd gloss 0.0375 mm DFT Topcoat: Enamel, alkyd gloss 0.0375 mm DFT

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TABLE 2

EXTERIOR METAL SURFACES (GALVANIZED)

A. New galvanized surfaces:

Primer: Water-borne, 100% acrylic 0.0375 mm DFT Intermediate: Acrylic enamel, gloss 0.0375 mm DFT Topcoat: Acrylic Enamel, gloss 0.0375 mm DFT

TABLE 3

OTHER EXTERIOR METAL SURFACES

A. Other Metal, except roof surfaces, not otherwise specified:

Primer: Water borne, 100% acrylic 0.0500 mm DFT (1 coat on shop-primed surfaces; 2 coats on non shop-primed) Intermediate: Enamel, alkyd, gloss 0.0375 mm DFT Topcoat: Enamel, silicone alkyd copolymer, gloss 0.0375 mm DFT

TABLE 4

INTERIOR METAL SURFACES

A. Metal (except floors) not otherwise specified:

Primer (non-shop-primed surfaces): Alkyd primer, corrosion inhibiting; lead and chromate free 0.0500 mm DFT Intermediate: Enamel, acrylic, semi-gloss interior 0.0375 mm DFT Topcoat: Enamel, acrylic, semi-gloss Interior 0.0375 mm DFT

B. Metal in toilets and other high-humidity areas:

Primer: Zinc-molybdate, alkyd primer 0.0500 mm DFT (1 coat on shop-primed surfaces; 2 coats on non-shop-primed) Intermediate: Enamel, interior acrylic, semi-gloss 0.0375 mm DFT Topcoat: Enamel, interior acrylic, semi-gloss 0.0375 mm DFT

Section 09900 11

TABLE 5

BUILDING SYSTEMS SURFACES: INTERIOR AND EXTERIOR

Mechanical, electrical, fire extinguishing sprinkler systems including valves, conduit, hangers, supports, exposed copper piping, and miscellaneous metal items, except hot metal surfaces and new prefinished equipment.

A. Surfaces not adjacent to painted surfaces:

Primer: Water borne, 100% acrylic 0.0375 mm DFT Intermediate: Water borne, 100% acrylic, semi-gloss 0.0375 mm DFT Topcoat: Water borne, 100% acrylic, semi-gloss 0.0375 mm DFT

B. Surfaces adjacent to painted surfaces: Coating systems as specified.

Color of topcoat to match adjacent surfaces: 0.0375 mm DFT for each coat.

C. New fire extinguishing sprinkler systems, exposed piping and equipment:

Primer: Zinc-molybdate primer, alkyd 0.0375 mm DFT Intermediate: Alkyd industrial enamel, gloss 0.0375 mm DFT

Topcoat: Alkyd industrial enamel, gloss 0.0375 mm DFT

D. Hot metal surfaces subject to temperatures up to 204 degree C:

Primer: N/A Intermediate: Zinc-rich primer (inorganic) 0.0375 mm DFT Topcoat: Zinc-rich primer (inorganic) 0.0375 mm DFT

E. New surfaces subject to temperatures up to 649 degrees C:

Primer: N/A Intermediate: Aluminum, heat resisting (649 degree C) 0.0375 mm DFT Topcoat: Aluminum, heat resisting (649 degree C) 0.0375 mm DFT

F. Insulation and surfaces of insulation coverings:

Primer: N/A Intermediate: Latex (100% acrylic emulsion) 0.0375 mm DFT Topcoat: Latex (100% acrylic emulsion) 0.0375 mm DFT

G. Cloth and paper covering on insulation:

Primer: Glue size and primer recommended by material manufacturer, one coat each.

Intermediate: N/A Topcoat: Coating to match adjacent surfaces.

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TABLE 6

EXTERIOR CONCRETE, CONCRETE MASONRY AND STUCCO

A. New concrete; including soffits but excluding tops of slabs:

Primer: NA Intermediate: Latex, 100% acrylic emulsion 0.0375 mm DFT Topcoat: Latex, 100% acrylic emulsion 0.0375 mm DFT

B. New exterior stucco:

Primer: Latex, 100% acrylic emulsion 0.0375 mm DFT Intermediate: N/A Topcoat: Latex, 100% acrylic emulsion 0.0375 mm DFT

TABLE 7

INTERIOR PLASTER AND WALLBOARD SURFACES

A. Plaster and Wallboard not otherwise specified:

Primer: Latex primer coating 0.0375 mm DFT Intermediate: (Same as topcoat) Topcoat: Latex semi-gloss 0.0375 mm DFT

B. Plaster and Wallboard in toilets and other high humidity areas:

Primer: Latex primer (interior) 0.0375 mm DFT Intermediate: Latex, semi-gloss eggshell 0.0375 mm DFT Topcoat: Latex, semi-gloss eggshell 0.0375 mm DFT

TABLE 8

INTERIOR WOOD AND PLYWOOD SURFACES

A. Wood and plywood not otherwise specified:

Primer: Surface sealer (varnish type) on softwood plywood 0.0375 mm DFT-NA Intermediate: Alkyd enamel, semigloss 0.0375 mm DFT Topcoat: Alkyd enamel, semigloss 0.0375 mm DFT

B. Natural finish wood doors:

Primer: Surface sealer, varnish type; (one coat); sand with 220 grit Intermediate: Polyurethane, clear coating, oil free, moisture curing (two coats) Topcoat: Polyurethane, clear coating, oil free, moisture curing (two coats)

Section 09900 13

3.3.5 Coat other surfaces for which the type of paint has not been specified herein as specified for surfaces having similar conditions of exposure.

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