05 05 16 POWDER COATINGS-2020 version.pdf

FLNI 200729B 05 05 16 - 1

POWDER COATINGS

SECTION 05 05 16 - POWDER COATINGS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Shop applied, powder coating applied to aluminum surfaces as specified in Section

11 62 18, Wind Chime Assemblies.

2. Chime assemblies and factory applied coatings are Government furnished. Contractor will be responsible for field touchup of damaged finishes in accordance with requirements described in Article 3.6, Field Touchup.

1.2 REFERENCES

A. American Society for Testing and Materials (ASTM):

1. ASTM B 117 – Practice for Operating Salt Spray (Fog) Apparatus.

2. ASTM D 522 – Test Methods for Mandrel Bend Test of Attached Organic Coatings.

3. ASTM D 523 – Test Method for Specular Gloss.

4. ASTM D 714 – Test Method for Evaluating Degree of Blistering of Paints.

5. ASTM D 968 – Test Methods for Abrasion Resistance of Organic Coatings by Falling

Abrasive.

6. ASTM D 1400 – Test Method for Nondestructive Measurement of Dry Film Thickness of

Nonconductive Coatings Applied to a Nonferrous Metal Base.

7. ASTM D 1654 – Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments.

8. ASTM D 1730 – Practices for Preparation of Aluminum and Aluminum-Alloy Surfaces for Painting.

9. ASTM D 2247 – Practice for Testing Water Resistance of Coatings in 100% Relative

Humidity.

10. ASTM D 2794 – Test Method for Resistance of Organic Coatings to the Effects of Rapid

Deformation (Impact).

11. ASTM D 3359 – Test Methods for Measuring Adhesion by Tape Test.

12. ASTM D 3363 – Test Method for Film Hardness by Pencil Test.

13. ASTM D 3451 – Practices for Testing Polymeric Powders and Powder Coatings.

14. ASTM D 4214 – Test Method for Evaluating Degree of Chalking of Exterior Paint Films.

15. ASTM D 5382 – A Guide to Evaluation of Optical Properties of Powder Coatings.

16. ASTM D 5861 – Guide to Significance or Particle Size Measurements of Coating

Powders.

17. ASTM D 6441 – Test Methods for Measuring the Hiding Power of Powder Coatings.

B. American Architectural Manufacturer’s Association (AAMA):

1. AAMA 2604-05 – Voluntary Specification, Performance Requirements and Test

Procedures for High Performance Organic Coatings on Aluminum Extrusions and Panels.

C. International Organization for Standardization (ISO):

1. ISO 1519 - Paints and varnishes - Bend test (cylindrical mandrel).

2. ISO 1520 - Paints and varnishes - Cupping tests.

FLNI 200729B 05 05 16 - 2

3. ISO 2409 - Paints and varnishes - Cross-cut test.

4. ISO 2815 - Paints and varnishes - Buchholz indentation test.

1.3 ACTION SUBMITTALS

Provide the following information if the basis of design product is not proposed for use by the

Fabrication Contractor.

A. Data:

1. Coating manufacturer published literature.

2. Submit manufacturer's application instructions for each product specified.

3. Submit full records of all products to be used. List each product in relation to finish formula and include the following:

a. Product type and use.

b. Manufacturer's product number.

c. Color numbers or descriptions.

d. Manufacturer's Material Safety Data Sheets (MSDS).

B. Samples: Submit 6 in. x 6 in. samples of each finish color and texture to be used on the project applied on aluminum q-panels.

1.4 INFORMATIONAL SUBMITTALS

A. Certification: Letter from the coating formulator to verify his acceptance of the applicator.

Provide written notification of approval by a formulator prior to application of the finish.

B. Quality control submittals:

1. Tests: During production, test on a daily basis on each shift for compliance with these

Specifications, and in compliance with applicable standards.

2. Certificate: Submit certification that all materials have been applied in accordance with the coating manufacturer’s recommendations.

1.5 QUALITY ASSURANCE

A. Applicator qualifications: Applicator shall be approved and licensed by the manufacturer.

B. Standard of acceptance:

1. Final coat to exhibit uniformity of color and uniformity of gloss across full surface area.

2. Quality of coated products to conform to specified requirements.

1.6 HANDLING

A. Limitations: Do not ship to the job site, materials that have not been inspected, tested and marked in the prescribed manner, do not fall within the prescribed color range, or have been rejected by the Contracting Officer.

FLNI 200729B 05 05 16 - 3

1.7 WARRANTY

A. Applicator’s 1-year warranty, covering coating materials, integrity and fade resistance.

PART 2 - PRODUCTS

2.1 MANUFACTURER

A. Polyester resin-based thermosetting powder coating, Series 58, by Tiger Drylac U.S.A., Inc., Interon, Crosslink Powder Coatings, Inc., IFS Coatings, Alesta by Axalta Power Coatings (basis of design) or equal.

2.2 MATERIALS

A. Powder coating: Super Durable Polyester resin-based thermosetting powder, Series 58 High

Performance Architectural Coating meeting AAMA 2604.

B. Primer: As required by manufacturer for substrate material and exposure.

2.3 COLOR

A. Color is Anodic Natura CFA301BA (AR400) as available from Alesta Decorative Powder

Coatings (axalta.com/powder). This color is the color of the coated chime tubes.

2.4 COATING FINISHES

A. Aluminum surfaces:

1. Pre-treat to ASTM D1730 Type B, Method 5 using a multi-stage chromate process or an approved chrome-free pretreatment process approved by powder coating manufacturer.

2. Primer: As selected by manufacturer.

3. Thermosetting Polyester Resin-based Powder:

a. Finish coat: Smooth matte.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine surfaces to be coated for conditions that would adversely affect the permanence and quality of this work.

B. Correct conditions detrimental to the proper and timely completion of this work before proceeding with installation.

FLNI 200729B 05 05 16 - 4

3.2 SURFACE PREPARATION

A. Prepare surfaces to receive the specified finishes in compliance with the coating manufacturer's instructions and these Specifications.

B. Grind welds and castings smooth.

3.3 CLEANING

A. Ferrous metal surfaces shall be blasted to SSPC-SP6, Commercial Blast Cleaning.

B. Surfaces shall be dry, free of debris, oils, dust, or other deleterious materials.

C. Apply pretreatment immediately after cleaning, before surface rust occurs.

D. Pretreatment: Yellow or green chromating or approved chrome-free pretreatment.

3.4 APPLICATION

A. Apply coating systems in accordance with its manufacturer’s instructions and these

Specifications.

B. Prepare and handle coating to prevent deterioration and inclusion of foreign matter.

C. Apply coating only under conditions that will insure finishes free from blemishes and defects.

Leave corners with no undue amount of paint accumulation.

D. Spray application:

1. Provide and maintain equipment that is suitable for intended purpose, capable of properly fluidizing powder coating to be applied.

2. Apply coating materials to clean surfaces to minimum 2.5 - 3.5 mil dry film thickness or as specified by manufacturer.

3. Ensure coating adheres to internal corners and recessed areas.

E. Allow coating to cure as required by manufacturer.

F. Apply additional coats when primer shows through the final finish until the finish is of uniform color and appearance.

G. Completed work shall match approved samples, as determined by the Contracting Officer.

3.5 FIELD QUALITY CONTROL

A. Remove, refinish, or repaint work not complying with specified requirements.

3.6 FIELD TOUCHUP

A. Acrylic lacquer in identical color, supplied by the manufacturer.

FLNI 200729B 05 05 16 - 5

B. Clean damaged area with isopropyl alcohol and allow to completely dry.

C. Touchup materials shall be applied with a brush or air brushed when air and substrate surface temperature is above 50 deg. F, to 1.0 to 1.3 mils DFT.

END OF SECTION 05 05 16