A04_SOW_Painting_of_Four_Exterior_Buildings_.pdf

CYCLIC MAINTENANCE: EXTERIOR PAINTING

OF FOUR BUILDINGS Page 1

OF FOUR BUILDINGS

NATIONAL PARK SERVICE

EVERGLADES NATIONAL PARK

Homestead, Florida

STATEMENT OF WORK

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1.0 PROJECT DESCRIPTION:

Provide all qualified labor, materials, tools, and supervision for the cleaning and exterior painting of the

Flamingo Wastewater Treatment Plant, Headquarters Building, Pine Island Maintenance Office, and Bill

Robertson Center. The Flamingo Wastewater Treatment Plant is located approximately 41 miles south of the park entrance. The park’s Main Headquarters Building, Pine Island Maintenance Office and Bill

Robertson Center are buildings that are all located in the Pine Island District near the park’s entrance.

Contractor shall keep jobsite cleaned and orderly and maintain access to existing walkways.

Additional Bid option items (locations) for the same description of work are as follows. Pine island carpenter/AC shop, Pine island Supply building, Pine island storage building, Pine Island Ranger Station, Pine Island Telecommunications building and the pressure washing of the roof at the Bill Robertson center.

The buildings are listed below.

1. Headquarters Building

2. Pine Island Maintenance Office

3. Bill Robertson Center

4. Flamingo Wastewater Treatment Plant

Bid option buildings (and or locations)

1. Pine island Carpenter/AC shop

2. Pine island Supply building

3. Pine island storage building

4. Pine Island Ranger station

5. Pine Island Telecommunications building

6. Bill Robertson center (roof)

2.0 CONSTRUCTION SITE LOCATION

• Main Headquarters Building is located at 40001 State Hwy 9336, Homestead, FL 33034

• Pine Island Maintenance Office address is (1.1 miles into park from Headquarters)

• Bill Robertson Center (7.8 miles into park from Headquarters)

• Flamingo Wastewater Treatment Plant (41 miles into park from Headquarters)

Location of Bid Option sites.

• Pine island Carpenter/AC shops located in Pine Island Maintenance complex (1.1 miles into park from Headquarters)

• Pine island Supply building located in Pine Island Maintenance complex (1.1 miles into park from

Headquarters)

• Pine island storage building located in Pine Island Maintenance complex (1.1 miles into park from

Headquarters)

• Pine Island Ranger station located in Pine Island Maintenance complex (1.1 miles into park from

Headquarters)

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• Pine Island Telecommunications building located in Pine Island Maintenance complex, located in

Pine Island Maintenance complex (1.1 miles into park from Headquarters)

• Bill Robertson center (roof) on right side of research road across from the James Beard center (7.8 miles into park from Headquarters)

3.0 SCOPE OF WORK

This Statement of Work shall include, but not limited to; power washing of buildings, cleaning of the building exterior, prep for paint per manufacturers specs, application of primer, painting of the exterior walls using material in specifications, vertical surfaces of the stairs and ramps, columns at both levels, soffits, ceilings, cladding, retaining wall (flamingo) and doors. Surfaces to be painted will be repaired prior to painting (i.e. filling cracks, patching holes, stucco and block repair), Project shall exclude, stone cladding, metal and glass windows frames, storefront doors, metal railings, planters, paving’s, roll up doors and other site features. Existing signage shall be carefully removed and reinstalled. Wall square footage of buildings and amount of material needed to be determined by contractor through inspection. Spray shields are to be used near windows, doors etc. to block product overspray or plastic and tape over areas needing to be protected from paint.

All exterior surfaces shall be pressure washed, and surface allowed to fully dry prior to painting. Loose paint shall be scraped and sanded to ensure best possible adhesion per paint manufacturers recommendations. Contractor shall protect adjacent plantings/vegetation, paving and surfaces during construction.

• Flamingo Wastewater Treatment Plant:

o 3 buildings (1 office building,1 mechanical building and 1 storage) Approximately 3,120 total sq ft of building footprint o Including retaining wall in front of building.

o Excludes roll up doors o Paint vertical roof flashing

• Main Headquarters Building:

o Approximately 19,545 sq ft of building footprint o Do not paint columns and soffits.

o Paint Doors: All Doors (except front double doors)

• Pine Island Maintenance Office:

o Approximately 6,569 sq ft of building footprint o Paint Doors: All Doors (except front double doors) o Paint vertical roof flashing o Paint exposed bay area at end of building

• Bill Robertson Center o Paint Walls: Approximately 11,848 sq ft of building footprint

OF FOUR BUILDINGS Page 4 o Approximately 3,578 sq ft of building footprint o Excludes roll up doors

• Pine island storage building o Approximately 5,618 sq ft of building footprint o Storage area with exposed ceiling. Ceiling to be painted in kind

• Pine Island Ranger station o Approximately 6,505 sq ft of building footprint

• Pine Island Telecommunications building o Approximately 1,576 sq ft of building footprint

• Bill Robertson center (roof) approximately 11,848 square foot of roof to be pressure washed.

4.0 PERIOD OF PERFORMANCE

The period of performance for this project shall be for 150 days from the date of contract award and after new window project in completed (excludes Headquarters as window project is completed). Work at the

Flamingo Wastewater Treatment Plant, Main Headquarters Building, Pine Island Maintenance Office, and

Bill Robertson Center shall start no earlier than July 1st, 2021 and shall need to be completed by Dec

31st, 2021. Work on this project shall be completed between the hours of 7:00 AM and 5:00 PM.

Early Morning, weekend and National Holiday Hours: No hours will be permitted without consent of the

Contracting Officer (CO) or Contracting Officer’s Representative (COR).

Bid option sites:

• Pine island Carpenter/AC shop o Approximately 5,618 sq ft of building footprint o Paint open bay area and ceiling

• Pine island Supply building

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5.0 COATING REQUIREMENTS

• Must meet or exceed the specifications listed in attachment entitled “Benjamin Moore Paint

Specifications”

6.0 SUBMITTALS

The Contractor is required to submit all shop drawings and material submittals for the contract within 10 working days after issue of the Notice of Award or as directed by the Contracting Officer. Data shall be collected into a single submittal for each element. Submit a minimum of 1 copy of all data for each submittal.

Prior to start or to start of any work, the contractor shall submit the following:

• Schedule of work

• Detailed schedule of values cost breakdown in accordance with the general outline of work as detailed above

• Accident Prevention Plan, Emergency Action Safety Plan, and Fall Protection Plan to be submitted to the Contracting Officer (CO) or Contracting Officer’s Representative (COR)

7.0 TRAVEL

Contractor shall be responsible for all travel related expenses for this project, including mobilization of equipment, tools, materials, manpower, lodging, meals, and per diem.

8.0 CONTRACTING OFFICER

Chad Williams

Interior Region 2- South Atlantic Gulf

40001 State Road 9336

Homestead, FL 33034

(305) 242-7798 Office chad_williams@nps.gov

9.0 PROGRESS/COMPLIANCE

The government requires the following from the contractor in order to monitor progress and ensure compliance.

• Contractor shall provide a schedule in the form of a graph or chart which shows the proposed work schedule for the various aspects of the work. The schedule should include beginning and ending dates for each aspect or phase of the work, in order to track the progress of the contract work.

• The contractor shall provide onsite supervision of the contract work, including work that may be accomplished through the use of subcontractors. The onsite supervisor shall be the contact and liaison with the National Park Service.

• A final inspection and testing of all systems installed will be accomplished by representatives of the contractor and the National Park Service. This inspection will serve as final

OF FOUR BUILDINGS Page 6 determination of the completion and workability of the contract work. Final payment will not be made without a final inspection resulting in final acceptance of the work by the National

Park Service.

10.0 EXTERIOR PAINTING LOCATIONS:

Everglades National Park

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Pine Island District

Pine Island Headquarters Building

40001 State Road 9336 Homestead, Florida 33034

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Pine Island Maintenance Yard

40001 State Road 9336 Homestead, Florida 33034

Flamingo District

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Flamingo Waste Water Treatment Plant

1 Flamingo Way Flamingo, Florida 33034

PRODUCT SPECIFICATIONS:

SECTION 09 91 13 - EXTERIOR PAINTING

PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. NOT USED

1.2 SUMMARY

A. Section includes surface preparation and the application of paint systems on exterior substrates.

1.2 DEFINITIONS

A. MPI Gloss Level 1: Not more than five units at 60 degrees and 10 units at 85 degrees, according to ASTM D 523.

B. MPI Gloss Level 3: 10 to 25 units at 60 degrees and 10 to 35 units at 85 degrees, according to ASTM D 523.

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C. MPI Gloss Level 4: 20 to 35 units at 60 degrees and not less than 35 units at 85 degrees, according to ASTM D 523.

D. MPI Gloss Level 5: 35 to 70 units at 60 degrees, according to ASTM D 523.

E. MPI Gloss Level 6: 70 to 85 units at 60 degrees, according to ASTM D 523.

F. MPI Gloss Level 7: More than 85 units at 60 degrees, according to ASTM D 523.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product. Include preparation requirements and application instructions.

1. Include printout of current "MPI Approved Products List" for each product category specified, with the proposed product highlighted.

2. Indicate VOC content.

B. Sustainable Design Submittals:

1. Product Data: For paints and coatings, indicating VOC content.

C. Samples for Initial Selection: For each type of topcoat product.

D. Product List: Cross-reference to paint system and locations of application areas.

Use same designations indicated on Drawings and in schedules. Include color designations.

1.4 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Paint: 5 percent, but not less than 1 gal. of each material and color applied.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Store materials not in use in tightly covered containers in well-ventilated areas with ambient temperatures continuously maintained at not less than 45 deg F.

1. Maintain containers in clean condition, free of foreign materials and residue.

2. Remove rags and waste from storage areas daily.

1.6 FIELD CONDITIONS

A. Apply paints only when temperature of surfaces to be painted and ambient air temperatures are between 50 and 95 deg F.

B. Do not apply paints in snow, rain, fog, or mist; when relative humidity exceeds 85 percent; at temperatures less than 5 deg F above the dew point; or to damp or wet surfaces.

PART 2 – PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited

OF FOUR BUILDINGS Page 11 to, the following:

1. Benjamin Moore & Co.

2. PPG Paints.

3. Sherwin-Williams Company (The).

B. Products: Subject to compliance with requirements, provide product listed in the Exterior

Painting Schedule for the paint category indicated.

2.2

PAINT, GENERAL

A. MPI Standards: Products shall comply with MPI standards indicated.

B. Material Compatibility:

1. Materials for use within each paint system shall be compatible with one another and substrates indicated, under conditions of service and application as demonstrated by manufacturer, based on testing and field experience.

2. For each coat in a paint system, products shall be recommended in writing by topcoat manufacturers for use in paint system and on substrate indicated.

C. VOC Content: For field applications, paints and coatings shall comply with

VOC content limits of authorities having jurisdiction and the following VOC content limits:

1. Flat Paints and Coatings: 50 g/L.

2. Nonflat Paints and Coatings: 50 g/L.

3. Dry-Fog Coatings: 150 g/L.

4. Primers, Sealers, and Undercoaters: 100 g/L.

5. Shellacs, Pigmented: 550 g/L.

6. Shellacs, Clear: 730 g/L.

7. Pretreatment Wash Primers: 420 g/L.

8. Zinc-Rich Industrial Maintenance Primers: 100 g/L.

9. Rust-Preventive Coatings: 100 g/L.

D. Colors: To be selected by NPS.

2.3 SOURCE QUALITY CONTROL

A. Testing of Paint Materials: The Contracting Officer reserves the right to invoke the following procedure:

1. The Contracting Officer will engage the services of a qualified testing agency to sample paint materials. Contractor will be notified in advance and may be present when samples are taken. If paint materials have already been delivered to Project site, samples may be taken at Project site. Samples will be identified, sealed, and certified by testing agency.

2. Testing agency will perform tests for compliance with product requirements.

3. The Contracting Officer may direct Contractor to stop applying paints if test results show materials being used do not comply with product requirements.

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Contractor shall remove noncomplying paint materials from Project site, pay for testing, and repaint surfaces painted with rejected materials. Contractor will be required to remove rejected materials from previously painted surfaces if, on repainting with complying materials, the two paints are incompatible.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and conditions, with Applicator present, for compliance with requirements for maximum moisture content and other conditions affecting performance of the Work.

B. Maximum Moisture Content of Substrates: When measured with an electronic moisture meter as follows:

1. Concrete: 12 percent.

2. Masonry (Clay and CMUs): 12 percent.

3. Wood: 15 percent.

4. Portland Cement Plaster: 12 percent.

C. Portland Cement Plaster Substrates: Verify that plaster is fully cured.

D. Exterior Gypsum Board Substrates: Verify that finishing compound is sanded smooth.

E. Verify suitability of substrates, including surface conditions and compatibility, with existing finishes and primers.

F. Proceed with coating application only after unsatisfactory conditions have been corrected.

1. Application of coating indicates acceptance of surfaces and conditions.

3.2 PREPARATION

A. Comply with manufacturer's written instructions and recommendations in "MPI

Architectural Painting Specification Manual" applicable to substrates and paint systems indicated.

B. Remove hardware, covers, plates, and similar items already in place that are removable and are not to be painted. If removal is impractical or impossible because of size or weight of item, provide surface-applied protection before surface preparation and painting.

1. After completing painting operations, use workers skilled in the trades involved to reinstall items that were removed. Remove surface-applied protection.

C. Clean substrates of substances that could impair bond of paints, including dust, dirt, oil, grease, and incompatible paints and encapsulants.

1. Remove incompatible primers and reprime substrate with compatible primers or apply tie coat as required to produce paint systems indicated.

2. Clean using methods recommended in writing by paint manufacturer, but not less than SSPC- SP1 Solvent Cleaning.

D. Concrete Substrates: Remove release agents, curing compounds, efflorescence, and chalk. Do not paint surfaces if moisture content or alkalinity of surfaces to be painted

OF FOUR BUILDINGS Page 13 exceeds that permitted in manufacturer's written instructions.

E. Steel Substrates: Remove rust, loose mill scale, and shop primer if any. Clean using methods recommended in writing by paint manufacturer but not less than the following:

1. SSPC-SP 2 Hand Tool Cleaning.

2. SSPC-SP 3 Power Tool Cleaning.

3. SSPC-SP 11 Power Tool Cleaning to Bare Metal.

F. Shop-Primed Steel Substrates: Clean field welds, bolted connections, and areas where shop paint is abraded. Paint exposed areas with the same material as used for shop priming to comply with SSPC-PA 1 for touching up shop-primed surfaces.

G. Wood Substrates:

1. Scrape and clean knots. Before applying primer, apply coat of knot sealer recommended in writing by topcoat manufacturer for exterior use in paint system indicated

2. Sand surfaces that will be exposed to view and dust off.

3. Prime edges, ends, faces, undersides, and backsides of wood.

4. After priming, fill holes and imperfections in the finish surfaces with putty or plastic wood filler. Sand smooth when dried.

3.3 APPLICATION

A. Apply paints according to manufacturer's written instructions and recommendations in

"MPI Architectural Painting Specification Manual."

1. Use applicators and techniques suited for paint and substrate indicated.

2. Paint surfaces behind movable items same as similar exposed surfaces.

Before final installation, paint surfaces behind permanently fixed items with prime coat only.

3. Paint both sides and edges of exterior doors and entire exposed surface of exterior door frames.

4. Paint entire exposed surface of window frames and sashes.

5. Do not paint over labels of independent testing agencies or equipment name, identification, performance rating, or nomenclature plates.

6. Primers specified in painting schedules may be omitted on items that are factory primed or factory finished if acceptable to topcoat manufacturers.

B. Tint undercoats same color as topcoat but tint each undercoat a lighter shade to facilitate identification of each coat if multiple coats of same material are to be applied. Provide enough difference in shade of undercoats to distinguish each separate coat.

C. If undercoats or other conditions show through topcoat, apply additional coats until cured film has a uniform paint finish, color, and appearance.

D. Apply paints to produce surface films without cloudiness, spotting, holidays, laps, brush marks, roller tracking, runs, sags, ropiness, or other surface imperfections. Cut in sharp lines and color breaks.

E. Painting Fire Suppression, Plumbing, HVAC, Electrical, Communication, and

Electronic Safety and Security Work:

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1. Paint the following work where exposed to view:

a. Equipment, including panelboards.

b. Uninsulated metal piping.

c. Uninsulated plastic piping.

d. Pipe hangers and supports.

e. Metal conduit.

f. Plastic conduit.

3.4 CLEANING AND PROTECTION

A. At end of each workday, remove rubbish, empty cans, rags, and other discarded materials from Project site.

B. After completing paint application, clean spattered surfaces. Remove spattered paints by washing, scraping, or other methods. Do not scratch or damage adjacent finished surfaces.

C. Protect work of other trades against damage from paint application. Correct damage to work of other trades by cleaning, repairing, replacing, and refinishing, as approved by

Contracting Officer, and leave in an undamaged condition.

D. At completion of construction activities of other trades, touch up and restore damaged or defaced painted surfaces.

3.5 EXTERIOR PAINTING SCHEDULE

A. Concrete, Stucco, and Masonry Surfaces (Other Than CMU):

1. Surface Preparation: A chemical wash of all mildew prior to pressure cleaning.

a. Chemical Wash: 1 quart of Chlorine Bleach to 3 quarts of water add 1 cup of (TSP) Tri-Sodium Phosphate.

b. Instructions: Add the one quart of bleach to the three quarts of clear cool water then add the one cup of TSP Mix – mix thoroughly. Pour into a

Hudson Sprayer (pump bot tle sprayer). Protect any plants or vegetation in the area, as to not allow the cleaning solution to come in contact with the plants or vegetation. Apply to the (surface) starting at the bottom and working up the side of the building. Allow solution to dwell for 10 minutes. For heavy mildew growth, using a moderately stiff bristle brush to scrub the surface. Do not allow the solution to dry on the surface. Then rise with clear water. Allow the surface to completely dry prior to application of coatings.

c. Pressure wash surfaces at PSI minimum of 4000 using rotating tip, after surface has completely dried from chemical wash.

2. Acrylic Finish: Two finish coats over a primer.

a. Primer: Basis of Design- PPG Paints, 6001 Series Hydrosealer Exterior

Acrylic Bond- ing Primer. Applied Dry Film Thickness: 1.4 mils min.

1) Equals to Basis of Design Primer:

a) Sherwin Williams, Prep Rite B51W00450.

b) Benjamin Moore, Insl-x AP1000.

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b. Exterior High Build Flat Acrylic Finish: Basis of Design- PPG Paints, 4-22XI Series Perma-Crete High Build 100 Percent Acrylic Topcoat.

Applied Dry Film Thickness:

5.0 mils min.

1) Equals to Basis of Design Finish Coat:

a) Sherwin Williams, Loxon XP A24.

b) Benjamin Moore, Texcrete WB Acrylic.

B. Concrete, Stucco, and Masonry (Other Than CMU) Ceilings and Underneath Stairs:

1. Surface Preparation: A chemical wash of all mildew prior to pressure cleaning.

a. Chemical Wash: 1 quart of Chlorine Bleach to 3 quarts of water add 1 cup of (TSP) Tri-Sodium Phosphate.

b. Instructions: Add the one quart of bleach to the three quarts of clear cool water then add the one cup of TSP Mix – mix thoroughly. Pour into a

Hudson Sprayer (pump bot tle sprayer). Protect any plants or vegetation in the area, as to not allow the cleaning solution to come in contact with the plants or vegetation. Apply to the (surface) starting at the bottom and working up the side of the building. Allow solution to dwell for 10 minutes. For heavy mildew growth, using a moderately stiff bristle brush to scrub the surface. Do not allow the solution to dry on the surface.

Then rise with clear water. Allow the surface to completely dry prior to application of coatings.

c. Pressure wash surfaces at PSI minimum of 4000 using rotating tip to remove margin- ally adhered coating where blistering, peeling, and cracking are visible, after surface has completely dried from chemical wash.

2. Acrylic Finish: Two finish coats over a primer.

a. Primer: Basis of Design- PPG Paints, 6001 Series Hydrosealer Exterior

Acrylic Bond- ing Primer. Applied Dry Film Thickness: 1.4 mils min.

1) Equals to Basis of Design Primer:

a) Sherwin Williams, Prep Rite B51W00450.

b) Benjamin Moore, Insl-x AP1000.

b. Exterior High Build Flat Acrylic Finish: Basis of Design- PPG Paints, 4-22XI Series Perma-Crete High Build 100 Percent Acrylic Topcoat.

Applied Dry Film Thickness:

3.2 mils min.

1) Equals to Basis of Design Finish Coat:

a) Sherwin Williams, Loxon XP A24.

b) Benjamin Moore, Texcrete WB Acrylic.

C. Concrete, Stucco, and Masonry (Other Than CMU): Areas of concrete or stucco repair and exposed columns:

1. Surface Preparation: A chemical wash of all mildew prior to pressure cleaning.

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a. Chemical Wash: 1 quart of Chlorine Bleach to 3 quarts of water add 1 cup of (TSP) Tri-Sodium Phosphate.

b. Instructions: Add the one quart of bleach to the three quarts of clear cool water then add the one cup of TSP Mix – mix thoroughly. Pour into a

Hudson Sprayer (pump bot- tle sprayer). Protect any plants or vegetation in the area, as to not allow the cleaning solution to come in contact with the plants or vegetation. Apply to the (surface) start- ing at the bottom and working up the side of the building. Allow solution to dwell for 10 minutes. For heavy mildew growth, using a moderately stiff bristle brush to scrub the surface. Do not allow the solution to dry on the surface. Then rise with clear water. Allow the surface to completely dry prior to application of coatings.

c. Pressure wash surfaces at PSI minimum of 4000 using rotating tip to remove margin- ally adhered coating where blistering, peeling, and cracking are visible, after surface has completely dried from chemical wash.

2. Acrylic Finish: Two finish coats over a Solvent Acrylic Masonry Coating.

a. Primer: Basis of Design: PPG Paints, 4-9110 Perma-Crete Exterior

Solvent Acrylic Masonry Coating. Applied Dry Film Thickness: 8.5 mils min.

1) Equals to Basis of Design Primer:

a) Sherwin Williams, Ultra Crete B46.

b) Benjamin Moore, Tuffcrete CST 5000.

b. Exterior High Build Flat Acrylic Finish: Basis of Design- PPG Paints, 4-22XI Series Perma-Crete High Build 100 Percent Acrylic Topcoat.

Applied Dry Film Thickness:

5.0 mils min.

1) Equals to Basis of Design Finish Coat:

a) Sherwin Williams, Loxon XP A24.

b) Benjamin Moore, Texcrete WB Acrylic.

D. Concrete Steps, Risers, and Landings: Provide the following clear water-repellant system over un- painted concrete.

1. Surface Preparation: A chemical wash of all mildew prior to pressure cleaning.

d. Chemical Wash: 1 quart of Chlorine Bleach to 3 quarts of water add 1 cup of (TSP) Tri-Sodium Phosphate.

e. Instructions: Add the one quart of bleach to the three quarts of clear cool water then add the one cup of TSP Mix – mix thoroughly. Pour into a

Hudson Sprayer (pump bot- tle sprayer). Protect any plants or vegetation in the area, as to not allow the cleaning solution to come in contact with the plants or vegetation. Apply to the (surface) start- ing at the bottom and working up the side of the building. Allow solution to dwell for 10 minutes. For heavy mildew growth, using a moderately stiff bristle brush

OF FOUR BUILDINGS Page 17 to scrub the surface. Do not allow the solution to dry on the surface. Then rise with clear water. Allow the surface to completely dry prior to application of coatings.

f. Pressure wash surfaces at pressures as noted in drawings after surface has completely dried from chemical wash.

2. Acrylic Siloxane Sealer: Two coats.

a. Sealer: Basis of Design- PPG Paints, 4-6100 PERMA-CRETE® Aqua-

Pel™ Clear Water Repellent Speedhide Interior/Exterior Acrylic

Masonry Block Filler. Applied at a coverage rate of 80-100 Sq. ft. /gal.

1) Equals to Basis of Design Sealer:

a) Sherwin Williams, Loxon Siloxane A10T7.

b) Benjamin Moore, Intraguard (WR Meadows).

E. Ferrous Metal: Provide the following finish system over steel beams incorporated with the T Shaped Precast Concrete Ceiling systems. Where abrasive blasting is not practical, power tool cleaning in accordance with SSPC

SP-3.

1. Surface preparation:

a. Pressure cleaning PSI minimum of 4000 using a rotating tip to remove marginally adhered coating where blistering, peeling, and cracking are visible.

b. Rust stains to be removed before prime coat

c. Ferrous metal beams incorporated in precast ceiling system require a minimum of an SSPC-SP3 prep.

2. Acrylic Finish: Two finish coats over a rust-inhibitive primer.

a. Primer: Basis of Design- PPG Paints, 4160 Multiprime Alkyd Metal

Primer. Applied Dry Film Thickness: 2.0 mils min.

1) Equals to Basis of Design Primer:

a) Sherwin Williams, Kromik Primer E41.

b) Benjamin Moore, Super Spec P 06.

b. Exterior High Build Flat Acrylic Finish: Basis of Design- PPG Paints, 4-22XI Series Perma-Crete High Build 100 Percent Acrylic Topcoat.

Applied Dry Film Thickness:

3.2 mils min.

1) Equals to Basis of Design Finish Coat:

a) Sherwin Williams, Loxon XP A24.

b) Benjamin Moore, Texcrete WB Acrylic.

F. PVC Pipes and Conduit:

1. 1. Acrylic Finish: Two finish coats over a universal bonding primer

a. Primer: Basis of Design- PPG Paints, 17-921XI Seal Grip Universal

Primer/Sealer. Applied Dry Film Thickness: 1.6 mils min.

1) Equals to Basis of Design Primer:

a) Sherwin Williams, Problock B 51W20.

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b) Benjamin Moore, Fresh Start 023.

b. Finish: Finish coat to match substrate recommendation

G. Galvanized-Metal Substrates:

1. Inspection:

a. Inspect and test for passivation coatings before proceeding to the coating/application phase. Passivation coatings must be removed before application of the coating system. Test with copper sulfate test.

1) Passivation is applied to galvanized steel for the delivery process and protects the zinc on the steel. This type of coating is used to protect galvanized steel when stocked or stored in humid conditions prior to reaching the end customer. The passivating treatment is beneficial for the transportation and storage of galvanized steel;

however, it has also been known to cause coating failures. The treatment is typically colorless and is not readily detectable. It must be removed prior to coating.

2. Copper Sulfate Test Procedure:

a. Prepare a solution by dissolving 20 grams of copper sulfate in one lite

(1000 gams) of distilled water.

b. Solvent wipe a small area pe SSPC-SP1.

c. Sand a small area in the same spot that was just cleaned. Do not sand the entire surface.

d. Using a cotton swab saturated with the copper sulfate solution, apply aswipe to both the sanded and unsanded washed areas.

e. If the sanded and unsanded surfaces turn black at the same and in less than

10 seconds, there is NO passivator on the substrate. A normal cleaning and degreasing is recommended prior to painting.

f. If the unsanded area tuns slower than the sanded area, or not at all, a passivator or stabilizer of some type is present. If neither surface area turns, the surface is probably an alloy of zinc

3. Preparation of Treated or Passivated Surfaces:

a. Remove the treatment by brush blasting per SSPC-SP7.

b. If the above method is prohibited by applicable environmental regulations, mechanical restrictions or cost/economics, chemical etching with phosphoric acid is an option. Chemical etching can leave a powdery residue or may not be able to etch through certain stabilizers, therefore, a test patch is recommended to ensure that the treatment has been removed and proper adhesion can be achieved.

4. Surface Preparation:

a. Remove contaminants by following SSPC SP1 solvent cleaning. Then choose the best method for providing a profile. Service life of coating is in direct proportion to surface preparation. Follow any additional surface preparation guidelines on technical data sheets.

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b. SSPC-SP1 Solvent Cleaning- Removal of visible oil, grease, soil, drawing and cutting compounds, and other soluble contaminants from steel surfaces with solvent, vapor, cleaning compound, alkali, emulsifying agent, or steam.

c. SSPC-SP2 Hand Tool Cleaning- Removes all loose mill scale, loose rust, loose paint and other loose detrimental foreign matte by hand chipping, scraping, sanding and wire brushing.

d. SSPC-SP3 Power Tool Cleaning- Removes all loose mill scale, loose rust, loose paint, and other loose detrimental foreign matter by power wire brushing, power sanding, power grinding, power tool chipping and power tool descaling.

e. SSPC-SP6/NACE 3 Commercial Blast Cleaning: When viewed without magnification, the surface shall be fee of all visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion products and other foreign matter of at least 66-2/3% of unit area, which shall be a square 3 in. x 3 in.

(9 sq. in.). Light shadows, slight streaks, or minor discolorations caused by stains of rust, stains of mill scale, or stains of previously applied coating in less than 33 1/3% of the unit area is acceptable.

5. Coating/Application System:

a. Full Prime Coat: Apply one coat.

1) Basis of Design: PPG Industries, Inc.; AMERLOCK 2 VOC

High Solids Epoxy Coating @ 3.0 to 8.0 mils DFT.

b. Top Coat: Apply one coat with product selected from those below based upon required sheen.

1) Basis of Design: PPG Industries, Inc.; PSX 805 Satin Engineered

Siloxane Coating @ 3.0 to 8.0 mils DFT.

2) Basis of Design: PPG Industries, Inc.; PSX 800 Gloss Engineered

Siloxane Coating @ 3.0 to 7.0 mils DFT.

c. Anti-Skid Additive. Apply per technical data instructions. Typically applied in or on the prime coat of epoxy.

1) Basis of Design: PPG Industries, Inc.; PPG 888 Amercoat Anti-

Skid Aluminum Oxide Non-Skid Aggregate.