SPEC_3-_09901.pdf

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PAINTING

SECTION 09901

PAINTING

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes surface preparation and field painting of exposed exterior items and surfaces.

1.2 SUBMITTALS

A. Product Data: For each product indicated.

PART 2 - PRODUCTS

2.1 PAINT MATERIALS, GENERAL

A. Colors: As selected by Contracting Officer (CO) from manufacturer's full range.

2.2 PREPARATORY COATS

A. Exterior Primer:

1. Ferrous-Metal and Aluminum Substrates: Rust-inhibitive metal primer.

2.3 EXTERIOR FINISH COATS

A. Exterior Alkyd Enamel:

1. Sherwin Williams B54 Series Industrial Enamel oil/alkyd paint or approved equal.

PART 3 - EXECUTION

3.1 APPLICATION

A. Surface Preparation: Clean and prepare surfaces to be painted according to manufac-turers written instructions for each particular substrate condition and as specified.

1. Ferrous Metals: Clean ungalvanized ferrous-metal surfaces that have not been shop coated; remove oil, grease, dirt, loose mill scale, and other foreign sub-stances. Use solvent or mechanical cleaning methods that comply with SSPC's recommendations.

2. Galvanized Surfaces: Clean galvanized surfaces with nonpetroleum-based sol-vents so surface is free of oil and surface contaminants. Remove pretreatment from galvanized sheet metal fabricated from coil stock by mechanical methods.

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PAINTING

B. Material Preparation:

1. Stir material before application to produce a mixture of uniform density. Stir as required during application. Do not stir surface film into material. If necessary, remove surface film and strain material before using.

C. Sand lightly between each succeeding enamel coat.

3.2 EXTERIOR PAINT SCHEDULE

A. Ferrous Metal:

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

a. Primer: Exterior ferrous-metal primer (not required on shop-primed items).

b. Finish Coats: Exterior semi-gloss acrylic enamel for ferrous and other metals.

B. Zinc-Coated Metal:

1. Acrylic Finish: Two finish coats over a galvanized metal primer.

a. Primer: Exterior galvanized metal primer.

b. Finish Coats: Exterior semi-gloss acrylic enamel for ferrous and other metals.

END OF SECTION 09901