Attachment 10 - Specs 09900 Painting 20091228.pdf

PAINTING SPECIFICATION 09900

1. GENERAL

A. DESCRIPTION OF THE WORK:

1. Surfaces To Be Painted: The work under this Section shall include the surface preparation and painting of all exterior metal siding and exterior concrete surfaces, including, but not necessarily limited to, exterior metal siding, exterior concrete walls, all metal window sashes and frames, all metal doors and frames (including overhead doors and frames), louvers, downspouts, piping, conduit, blowout panels, etc. on the Scale House (Add Alternate A), Pilot Plant (Add Alternate B), and Grain Elevator (Headhouse) (Add Alternate C).

2. Surfaces Covered With High Performance Coating: Existing prefinished metal fascia and soffits will not be painted but will, after cleaning, be covered with high performance coating as described below.

3. Surfaces Not Requiring Paint: It is the intent to prepare and paint all exposed exterior surfaces of the Headhouse, Grain Elevator, Office, and Pilot Plant except the factory finished metal wall panels and natural finish surfaces which are not normally painted, including glass, roofing, cyclone equipment, and concrete walks, drives and curbs.

4. Do not paint over any code-required labels such as Underwriters’ Laboratories and Factory Mutual or any equipment identification, performance rating, name, or nomenclature plates.

5. Do not apply paint or primer to surfaces to receive sealant until after sealant has been applied.

B. QUALITY ASSURANCE:

1. Single Source Responsibility: Provide primers and other undercoat paint produced by same manufacturer as finish coats. Use only thinners approved by paint manufacturer and use only within recommended limits.

2. Contractor’s Qualifications:

a. Powerwashing and Related Work: A firm regularly doing business of this type with not less than three years of successful experience in powerwashing and surface preparation of concrete and steel substrates similar to those of this project to receive type of materials specified.

b. Coatings Applicator: A firm regularly doing business of this type with not less than three years of experience applying coatings of type specified, and who is approved by the Coatings Manufacturer for applying the materials as specified.

c. Sample Area: Prior to commencement of the surface preparation for each type surface to be refinished, the Contracting Officer’s Representative (COR) shall select an area of the building near ground level to be prepared and coated. Area shall be approximately 6 feet square and shall be typical for the building.

1. Contractor shall powerwash with water at 5000 psi to remove existing chalking, flaking, cracked, and loose coatings from the valley corners and flat areas to meet the coatings manufacturer’s requirements for a one year warranty.

2. After the surface has been powerwashed and approved by the COR, a full application of coating shall be applied for the COR’s examination and to assure desired results will be met. Additional small sample areas may be required in order to determine the correct powerwashing procedure for the remainder of the building, if the sample area is unacceptable.

C. PROTECTION:

1. The Contractor shall provide all necessary signs, warning lights, barricades, and take all necessary precautionary measures to protect his/her workers, the Government’s personnel, the public, and all other persons from harm during the course of construction. The Contractor shall also protect the building, the contents of the building, the site, and adjacent sites from damage during the course of this contract.

2. The building shall be kept locked at all times when Government’s personnel are not on the site and only authorized personnel, as approved by the COR shall be allowed to enter the building.

3. During the course of construction, the Contractor shall provide all necessary temporary coverings, and take all steps necessary to prevent water, paint or weather related elements from entering the building. The Contractor shall provide all necessary temporary coverings, and take all steps necessary to prevent damage to Government and personal properties from the powerwashing and painting operations.

4. The Contractor shall provide the necessary signs, perimeter barriers, warning lights, and all other necessary precautions measures to protect his/her vehicles, government owned vehicles, and all public vehicles from overspray and any excess application during powerwashing and painting operations. The Contractor shall also protect the building, the site, and any adjacent buildings and sites from overspray and excess application during the powerwashing and painting process.

D. SUPERVISION:

1. During the entire course of construction, the Contractor shall have at the work site a full time Superintendent, fully qualified to supervise the work. All members of the crew shall be fully trained and experienced in this type of construction.

2. A complete set of specifications and drawings shall be retained at the site at all times for reference to the requirements for this project.

E. EGRESS:

The Contractor shall coordinate with the COR prior to commencement of work and shall agree on an area for storage of materials and access to the site. Contractor shall prevent as far as possible any damage to lawns, shrubbery, trees, walks, drives, etc., adjacent to the building, limiting vehicle traffic to the minimum. Cracked or broken concrete walks, drives, etc. damaged during the course of construction shall be repaired to original condition at no cost to the Government. The Contractor shall not block Government personnel and emergency vehicles access to the Government buildings or roadway.

F. DELIVERY AND STORAGE:

1. Deliver materials to the job site in original, new and unopened packages and containers bearing manufacturer’s name and label, and the following information:

Name or Title of Material Federal Spec. Number (if applicable) Manufacturer’s Stock number; Date of Manufacturer Manufacturer’s Name Contents by Volume for Major Pigment and Vehicle Constituents Thinning Instructions Application Instructions Color Name and Number

2. Materials shall be stored in a neat, safe manner so as not to exceed allowable live load of the storage area and out of the weather and protect from freezing in a clean dry area. If there are no available storage areas or sites on Government property, it shall be the Contractor’s responsibilities to provide his/her own storage off site.

3. Do not install materials that have become wet or contaminated with dirt, chemicals, frost or other weather elements.

4. Keep storage area neat and orderly. Remove oily rags and waste daily. Take all precautions to ensure that workers and work areas are adequately protected from fire hazards and health hazards resulting from handling, mixing, and application of paints.

G. SUBMITTALS:

1. Product Data: Submit manufacturer’s technical information, including paint label analysis and application instructions for each material proposed for use.

2. Colors: Colors of coatings shall be selected by the COR from manufacturer’s standard color chart.

H. JOB CONDITIONS:

1. Follow Paint Manufacturer’s instructions concerning allowable temperature conditions, humidity levels, application requirements, and mil thickness for each coat, unless indicated otherwise in these specifications.

2. Do not apply paint in snow, rain, fog or mist, or when relative humidity exceeds 85%, or to damp or wet surfaces.

3. CLEAN UP: After the sandblasting operations, the pavement and interior building area shall be sweep and vacuum cleaned of sand.

PART 2- PRODUCTS

A. PRODUCT SCHEDULE:

Building Component Primer Top Coat

Concrete wall Sherwin-Williams Loxon Conditioner

Sherwin-Williams Loxon Topcoat

Metal Panel Siding XIM Peel Bond Sherwin-Williams Loxon Topcoat

Overhead Doors & Frames, Personnel Doors & Frames

Sherwin-Williams Bondplex Low Sheen White

Window Mullions & Frames

Sherwin-Williams Bondplex Low Sheen Black

Metal Fascia and Soffits Rust-oleum 9800 System DTM Urethane Mastic Black Semi-Gloss Finish or Sherwin-Williams Hi-Solids Polyurethane

1. Paint Materials: Provide best quality grade of various types of coatings as regularly manufactured by acceptable paint materials manufacturers. Sherwin-Williams, and Rust- Oleum products have been listed here for acceptable products, but other equivalent products by other manufacturers can be used but will require submittals showing equivalent performances. Kurt Wolf, 785-556-8001, of Sherwin Williams in Manhattan, KS is a possible contact for additional information.

A. Primers

1. Concrete substrate requires a 100% acrylic emulsion conditioner that will penetrate and seal exterior surfaces and bond light chalk to the surface.

a. Volume of solids to be 19% +/- 2%/

b. Weight of solids to be 26% +/- 2%.

c. Loxon Conditioner by Sherwin-Williams or equal is acceptable.

2. Metal substrate requires a high build, water-based, penetrating, bonding primer/sealer.

a. Recommended Film Thickness is 30 mils wet, which dries to 10 mils.

B. Top Coats

1. Acrylic Coating

a. Volume of solids to be 45% +/- 2%.

b. Weight of solids to be 59% +/- 2%.

c. Loxon Acrylic Coating by Sherwin-Williams or equal is acceptable.

2. Pre-finished metal substrate requires a single component, waterbased acrylic, adhesion promoting coating formulated for direct application to pre-finished metal siding.

a. Volume of solids to be 41% +/- 2%.

b. Weight of solids to be 55% +/- 2%

c. Bond-Plex by Sherwin-Williams or equal is acceptable.

3. High Performance Coating:

a. Two-component Aliphatic Polyurethane Enamel

b. Suggested Manufacturer: Rust-Oleum (11 Hawthorn Parkway, Vernon Hills, IL) or Sherwin Williams, (785-556-8001).

c. Color: Black to match existing color of fascia and soffits

d. Edge Coverage: Good

e. Solids by Weight: >61%

f. Recommended Dry Film Thickness: >2.0 mils

g. Dry Heat Resistance: 300 deg. F. (Color shift may occur above 150 deg)

h. Approved Products: Rust-Oleum Corporation, Rust-O-Thane 9400 Tinted System or Sherwin-Williams Hi-Solids Polyurethane.

B. PROPRIETARY:

Proprietary names used to designate colors or materials are not intended to imply that products of names manufacturers are required to the exclusion of equivalent products of other manufacturers.

PART 3-EXECUTION

A. INSPECTION:

1. Powerwashing: Applicator shall examine areas and conditions under which powerwashing and cleaning work is to be applied and notify COR in writing of conditions detrimental to proper and timely completion of the work. Do not proceed with work until unsatisfactory conditions have been corrected in a manner acceptable to Applicator.

2. Starting of Powerwashing Work: Starting of powerwashing work will be construed as Applicator’s acceptance of surfaces and conditions within any particular area.

3. Powerwash Operator: Powerwash operator shall meet and coordinate with COR and Coating Applicator prior to commencement of work to agree on sample panel.

B. SURFACE PREPARATION:

1. General: Perform preparation and cleaning procedures in accordance with paint manufacturer’s instructions and as herein specified for each particular substrate conditions.

2. Powerwashing and Cleaning: All concrete wall surfaces, and all metal surfaces except the aluminum fascia and the pre-finished metal wall panels of Scale House, Grain Elevator, and Pilot Plant, are to be sandblasted and properly prepared to receive the new coatings. These surfaces have been previously painted with coatings which are unknown at this time. Many of the metal surfaces are badly rusted where the previous coating has failed.

Powerwash cleaning with 5000 psi nozzle to remove a minimum of at least 2/3 of all visible rust, scale, loose or cracked paint and other foreign matter from each square foot of surface. Centrifugal wheel or other approved methods of removal shall not be used unless first approved in writing by the COR.

3. Protection: Prior to commencement of the powerwashing, Contractor shall seal off electrical motors, gear boxes, openings in the equipment, openings in the building, and other areas sensitive to water migration into the system or building. After completion of powerwashing, Contractor shall clean all areas that have been contaminated both interior and exterior of the building. Motors, bearings, gear boxes and other equipment sensitive to water infiltration shall be wrapped and sealed with plastic sheeting or other methods such as removal, temporarily, shall be used.

Areas such as the cement asbestos blow out panels, aluminum fascia, factory finished metal wall panels, glass, etc. which are not to be powerwashed shall be covered to prevent damage to the finish.

Contractor shall exercise extreme caution while proceeding with the work to prevent damage or contamination to surrounding buildings, equipment, vehicles, etc.

4. Centrifugal Wheel or Other Approved Methods: Centrifugal wheel or other approved methods of preparing the surface may be used if approved in writing by the COR. Deep blasting of the surface which will be detrimental to the surface material shall be avoided.

5. Sample Areas: Sample areas of each material to be prepared shall be blasted prior to commencement of project and inspected in the presence of the COR to determine the representative surface condition required.

6. Solvents: Solvents of type recommended by the Coating Manufacturer shall be used to remove oil, grease, or other laitance and is required for proper preparation of surfaces.

7. Dust Removal: After blasting is complete and prior to application of coatings, all surfaces, joints, etc. shall be blown out with compressed air to remove sand, dust, and other contaminates. Areas that cannot be properly cleaned with compressed air shall be washed with clean water or solvent.

8. All Surfaces: All surfaces shall be cleaned and properly prepared to receive the coatings as required or recommended by the Coating Manufacturer and in accordance with manufacturer’s printed specifications and instructions. Solvents, where used, shall be approved by the Coating Manufacturer.

C. PREPARATION FOR PAINTING:

1. Applicator: Applicator must examine areas and conditions under which painting work is to be applied and notify COR in writing of conditions detrimental to proper and timely completion of the work. Do not proceed with the work until unsatisfactory conditions have been corrected in a manner acceptable to Applicator.

2. Starting of Painting: Work will be construed as Applicator’s acceptance of surfaces and conditions within any particular area.

3. Do not paint over dirt, rust, scale, grease, moisture, scuffed surfaces or conditions otherwise detrimental to formation of a durable paint film.

4. Perform preparation and cleaning procedures in accordance with Paint Manufacturer’s instructions and as herein specified, for each particular substrate condition.

a. Provide barrier coats over incompatible materials. Notify COR in writing of any anticipated problems in using, the specific coating systems with substrates prepared by others.

b. Remove hardware, hardware accessories, machined surfaces, plates, and similar items in place and not to be finish-painted, or provide surface-applied protection prior to surface preparation and painting operations. Remove, if necessary, for complete painting of items and adjacent surfaces. Following completion of painting, of each space or area, reinstall removed items.

c. Clean surfaces to be painted before applying paint or surface treatments.

Program cleaning and painting so that contaminants from cleaning process will not fall onto wet, newly painted surfaces.

5. Determine alkalinity and moisture content of surfaces to be painted by performing appropriate tests. If surfaces are found to be sufficiently alkaline or cause blistering and burning of finish paint, correct this condition before application of paint.

Do not paint over surfaces where moisture content exceeds that permitted in manufacturer’s printed instructions.

D. PREPARATION FOR HIGH PERFORMANCE COATING:

1. Inspect and secure all components to be refinished.

2. Chemically clean/strip all existing contaminates from all surfaces of the areas to be refinished down to sound material. Remove all existing rust completely and preprime those areas as necessary.

3. Rinse or finally clean surfaces to be refinished to assure that all chemical utilized during the stripping process are removed.

4. Chemically pretreat the surfaces to be refinished with manufacturer’s recommended primer.

5. Protect from environmental contamination.

E. MATERIALS PREPARATION:

1. Mix and prepare painting materials in accordance with manufacturer’s directions.

2. Maintain containers used in mixing and application of paint in a clean condition, free of foreign materials and residues.

3. Stir materials before application to produce a mixture of uniform density, and stir as required during application. Do not stir surface film into material. Remove film and, if necessary, strain material before using.

F. APPLICATION OF COATINGS:

1. General: Do not commence painting, until sealant work is completed. Apply paint in accordance with manufacturer’s directions. Use applicators and techniques best suited for substrate and type of material being applied.

Contractor shall exercise extreme caution while proceeding with the work to prevent damage or contamination to surrounding buildings, equipment, vehicles, etc.

a. Paint colors, surface treatments, and finishes are indicated in the contract documents.

b. Provide finish coats which are compatible with prime paints used.

c. Apply additional coats when undercoats, stains or other conditions show through final coat of paint until paint film is of uniform finish, color and appearance. Give special attention to insure that surfaces, including edges, corners, crevices, welds, and exposed fasteners receive a dry film thickness equivalent to that of flat surfaces.

d. Paint surfaces behind movable equipment same as similar exposed surfaces.

e. Paint tops, bottoms and edges of doors. Open windows and paint surfaces exposed to exterior. Paint cement asbestos blowout panels same as concrete surfaces. Open doors and paint all surfaces of frames exposed from exterior. Paint interior surfaces of ducts and similar equipment where surface is visible from exterior.

2. Scheduled Painting: Apply first coat material to surfaces that have been cleaned, pretreated or otherwise prepared for painting as soon as practicable after preparation and before subsequent surface deterioration.

Allow sufficient time between successive coatings to permit proper drying. Do not recoat until paint has dried to where it feels firm, does not deform, or feel sticky under moderate thumb pressure, and application of another coat of paint does not cause uplifting or loss of adhesion of the undercoat.

3. High Performance Coatings: Two component aliphatic polyurethane shall be applied to prefinished metal fascia and soffits. Allow to cure. Inspect for imperfections and correct per manufacturer’s recommendations. Dry film thickness shall be 2.0 mil.

F. CLEAN UP AND PROTECTION:

1. Clean Up: During progress of work, remove from site discarded paint materials, rubbish, cans, and rags at end of each work day.

Upon completion of painting work, clean window glass and other paint spattered surfaces. Remove spattered paint by proper methods, using care not to scratch or otherwise damage finished surfaces.

2. Protection: Protect adjacent surfaces against damage by painting and finishing work.

Correct any damage by cleaning, repairing or replacing, and repainting, as acceptable to

COR.

a. Provide “Wet Paint” signs as required to protect newly painted finishes.

Remove temporary protective wrappings for protection of work after completion of painting operations.

b. At completion of work, touch up and restore all damage or defaced painted surfaces which may have occurred during the project work.