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Preliminary Industry Characterization: Metal Can Manufacturing ...

Source: www.epa.gov
Topic: Metal Industry

Sort Desciption: This section characterizes the metal can manufacturing industry, including facilities,. products, manufacturing and coating processes, sources of HAP ...

Content Inside: Preliminary Industry Characterization: Metal Can Manufacturing--Surface Coating U. S. Environmental Protection Agency Coatings and Consumer Products Group Emission Standards Division Office of Air Quality Planning and Standards Research Triangle Park, NC 27711 September 1998 i TABLE OF CONTENTS Page 1.0 OVERVIEW OF INITIAL MACT DEVELOPMENT PHASE FOR THE METAL CAN MANUFACTURING–SURFACE COATING SOURCE CATEGORY . 1 2.0 SUMMARY OF INITIAL MACT DEVELOPMENT PROCESS 3 2.1 Roundtable Meetings 3 2.2 Site Visits . 4 2.3 Basis of the Preliminary Industry Characterization . 4 3.0 METAL CAN MANUFACTURING--SURFACE COATING SOURCE CATEGORY 4 3.1 Industry Profile 5 3.2 Metal Can Manufacturing and Coating Processes 7 3.2.1 Three-Piece Can Bodies . 8 3.2.2 Two-Piece Can Bodies 10 3.2.2.1 Draw-and-Iron Process 10 3.2.2.1.1 Aluminum beverage cans and 1-piece cans . 10 3.2.2.1.2 Two-piece draw-and-iron steel food cans . 11 3.2.2.2 Draw-Redraw Process 12 3.2.3 Can Ends . 12 3.2.3.1 Aluminum Beverage Cans 12 3.2.3.2 Food can and other sheet-coated ends . 13 ii 3.3 Coatings 13 3.3.1 Coating Technologies . 14 3.3.1.1 Conventional solventborne coatings 19 3.3.1.2 High-solids coatings 19 3.3.1.3 Waterborne coatings 20 3.3.1.4 Ultraviolet radiation-cured (UV-cured) coatings . 21 3.3.1.5 Powder coatings 22 3.3.2 Characteristics of Interior and Exterior Coatings . 22 3.3.2.1 Interior coatings . 23 3.3.2.2 Exterior coatings . 23 3.4 Characterization of HAP Emissions from Metal Can Surface Coating Operations 24 3.4.1 HAP Emissions . 24 3.4.2 HAP Emission Sources and Emission Reduction Techniques 25 3.4.2.1 Coating operations . 26 3.4.2.2 Cleaning operations . 27 3.4.2.3 Can washing operations 27 3.4.2.4 Mixing operations 28 3.4.2.5 Coating/solvent storage 28 3.4.2.6 Wastewater . 28 3.5 Summary of Federal/State/Local Regulations 32 iii 4.0 SUMMARY OF COMMENTS AND EPA RESPONSES . 34 Appendi ...

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