Section 09905 Structural Metal Primer/Finish

DaimlerChrysler Construction Standards 12/17/04

SECTION 09905 – STRUCTURAL METAL PRIMER/FINISH

PART 1 - GENERAL

0.1 SUMMARY

A. This Section includes surface preparation and shop painting (or post fabrication painting) of primer/finish coatings on structural metals.

0.2 DEFINITIONS

A. Types of Defects 1. Physical: Conditions of the coating surface that will affect performance. 2. Visual: Aberrations in the coating surface that do not affect performance, but detract from a smooth, even surface.

B. Shop Painting: Painting of surfaces before delivery to construction site. This coating is usually applied after fabrication.

0.3 SYSTEM DESCRIPTION

A. Performance Requirements 1. Owner’s intent is to reduce the types of hazardous and potentially hazardous materials in Owner’s facilities. This includes risk to employees and the environment for initial and maintenance exposures, and final disposal. a. Products used shall not contain heavy metal compounds, including lead and chromates. b. Refer to DaimlerChrysler document ETI-102. 2. This coating will perform as finish coat. a. Visual defects, such as cloudiness, spotting, holidays, laps, brush marks, runs, sags, or ropiness that can be seen from 15 feet under installed lighting conditions are not acceptable.

0.4 SUBMITTALS

A. Product data for coating system.

B. Manufacturer's Representative report immediately after each shop visit shall faxed to the Owner’s Representative.

0.5 QUALITY ASSURANCE

A. Applicator Qualifications: Applicator must be able to demonstrate successful application of these coatings consistently and to the satisfaction of the coating manufacturer and Owner before coating application for this Work is started.

B. Source Limitations: Coating and coating manufacturer must be on Owner’s lists of coatings approved for use and vendors of good standing.

C. Manufacturer's Representative Inspection/Assistance: Coating manufacturer Owner will engage a qualified independent testing agency to perform preconstruction testing indicated below. Retesting of materials failing to meet specified requirements shall be done at Contractor's expense.

STRUCTURAL METAL PRIMER/FINISH 09905 - 1 of 4 DaimlerChrysler Construction Standards 12/17/04

0.6 DELIVERY, STORAGE, AND HANDLING

A. Store materials to receive and that have received coating off the ground. 1. Wash materials that become soiled or otherwise defaced. 2. Repair or replace damaged materials as directed.

B. Handle coated materials in a manner to prevent damage to coating. Prepare for transportation to the site to protect against damage to the coating or accumulation of road dirt, erosion or deterioration.

0.7 PROJECT CONODITIONS

A. Environmental Requirements: From four hours before coating application until completion of application, the ambient and steel surface temperature shall be not less than 50 deg F, also not less 5 deg F above dewpoint.

PART 2 - PRODUCTS

0.1 MANUFACTURERS' REPRESENTATIVES

A. ICI Paints World Group (ICI) 1. Bob Benson, phone 248-853-0007 2. Kevin Lastacy, phone 616-335-3259

B. PPG Industries, Inc. (PPG) 1. Ken Hartland, cell 248-521-6659 2. Tom Orlando, cell 248-521-4751 3. Tom Krynski, phone 313-417-9982

C. Sherwin-Williams Company (S-W) 1. Dick Gauthier, phone 248-541-3466, ext. 369; cell phone 248-830-0890 2. Carl Sabo, phone 216-566-3034; fax 216-566-2775

0.2 MANUFACTURERS AND PRODUCTS

A. Interior, General Use 1. Products: a. ICI: 4160 Structural Primer b. PPG: 97-680 Universal Metal Primer c. S-W: Steel Spec Universal FD Primer/Finish (B50WW8) 2. Color: White per DaimlerChrysler Color Standard NPVP N 9.5.

B. Exterior Trestle Steel: Polyamide epoxy primer having DFT of not less than 4.0 mils 1. Product: a. ICI: Devran 205 Universal Epoxy Primer b. PPG: 97-145 Series Pitt-Guard Direct-to-Rust Epoxy Mastic Coating c. S-W: Recoatable Epoxy Primer 2. Color: Gray acceptable to Owner's Representative.

C. Slip-Critical Joints: Use at locations indicated to provide slip class A or B in accordance with AISC specification for structural joints using ASTM A 325 or A 490 bolts and Appendix A. 1. Sherwin-Williams Company: Recoatable Epoxy Primer - B67WJ5000/B67H5 2. Color: Tan or similar as standard with manufacturer and acceptable to Owner's Representative.

D. Asphaltic Paint: Use at areas of structural steel columns that will be embedded in concrete floor slabs. 1. Two component, polyamide-cure type coating applicable to immersed steel. Provide either PPG Industries, Inc, 97-640 Series Coal Cat Resinous Cured Coat Tar Epoxy Coating or a comparable product by the following: a. ICI Paints World Group b. Sherman-Williams Company

0.3 SOURCE QUALITY CONTROL

A. Before Beginning Coating Work: Manufacturer’s Representative shall visit each shop where coating is to be done and assist Applicator as follows: 1. Review Applicator's proposed equipment, procedures, and conditions with Owner’s Representative and metal fabricator. 2. Assist Applicator in revising these plans for successful application of coating.

B. During Coating Work: Manufacturer’s representative shall return to each shop where coating is being peformed. 1. Frequency: One visit per week during coating operations. 2. Observe coating operations and assist Applicator in making any revisions that would increase the success of coating application.

PART 3 - EXECUTION

0.1 COATING APPLICATION PROCEDURE

A. Surface Preparation 1. Clean surfaces to be coated. Remove deleterious materials, including rust, mill scale, spatter, slag, and flux deposits. Comply with coating manufacturer's recommendations; as a minimum surface preparation shall be in compliance with the following Structural Steel Painting Council (SSPC) specifications: a. SSPC-SP6 “Commercial Blast Cleaning”

B. Apply asphaltic paint after steel erection, but prior to placement of concrete slab, to the base of structural steel columns embedded in concrete slab. Application shall also encapsulate base plate and anchor bolts.

C. Coating Application 1. Just Before Application a. Wipe surfaces to be coated to remove loose dust and other debris. b. Apply tape or masking film to surfaces that will receive high-strength bolted slip- critical connections. 2. Application: Apply coating according to manufacturer’s instructions and at rate recommended by coating manufacturer to provide required dry film thickness. a. Minimum Dry Film Thickness: 3.0 mils, but not less than thickness recommended by coating manufacturer. b. Use coating application method that results in full coverage of joints, corners, edges, and exposed surfaces. c. Stripe coat (double coat) corners, crevices, bolts, welds, and sharp edges.

D. Curing or Drying 1. Work with coating manufacturer’s representative to optimize drying and curing conditions. 2. Protect newly coated surfaces from dust and contaminants.

0.2 REPAIR

A. Immediately after erection, clean field welds, bolted connections, and abraded coating areas according to SSPC SP-2 “Hand Tool Cleaning.”

B. When ambient temperature is 50 deg F and rising, unless otherwise required by coating manufacturer, apply touch-up coating to exposed areas using same materials and color as used for shop coating. Apply coating by brush to provide a minimum dry film thickness of 3.0 mils.

END OF SECTION

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