MIL-HDBK-lll0
Page
6.2.2
Cementitious Surfaces....................... 74
6.3
Recommendations By Substrate................ 74
6.3.1
Wood........................................ 74
6.3.2
Concrete/Masonry............................ 76
6.3.3
Steel....................................... 76
6.3.3.1
Specific Surface Preparation Requirements
for Coatings for Steel...................... 77
6.3.4
Galvanized and Inorganic-Zinc Primed Steel.. 77
6.3.5
Aluminum and Other Soft Metals.............. 78
6.4
Standards for Condition of Substrates....... 78
6.4.1
Unpainted Steel............................. 78
6.4.2
Nonferrous Unpainted Substrates............. 79
6.5
Standards for Cleanliness of Substrates..... 79
6.5.1
Standards for Cleaned Steel Surfaces........ 79
6.5.1.1
SSPC and NACE Definitions and Standards..... 79
6.5.1.2
Job-Prepared Standard....................... 79
6.5.1.3
Pictorial Standards for Previously Painted
Steel....................................... 79
6.5.2
Standards for Cleaned Nonferrous Metals..... 80
6.5.3
Previously Coated Surfaces.................. 80
6.6
Recommendations for Paint Removal........... 81
6.7
Methods of Surface Preparation.............. 81
6.7.1
Abrasive Blasting........................... 81
6.7.1.1
Types of Abrasive Blasting.................. 82
6.7.1.2
Conventional Abrasive Blasting Equipment.... 84
6.7.1.3
Abrasive Properties......................... 87
6.7.1.4
Abrasive Types.............................. 88
6.7.1.5
Selection................................... 91
6.7.1.6
Inspection.................................. 91
6.7.1.7
Procedures/General Information.............. 92
6.7.2
Acid Cleaning............................... 92
6.7.2.1
Concrete.................................... 94
6.7.3
Chemical Removal of Paint................... 94
6.7.4
Detergent Washing........................... 95
6.7.5
Hand Tool Cleaning.......................... 95
6.7.6
Heat........................................ 95
6.7.7
Organic Solvent Washing..................... 96
6.7.8
Power Tool Cleaning......................... 96
6.7.9
Steam Cleaning.............................. 97
6.7.10
Water Blast Cleaning........................ 97
6.7.10.1
Equipment................................... 98
7.1
Introduction................................ 99
7.2
Paint Storage Prior to Application.......... 99
7.3
Preparing Paint for Application............. 99
7.3.1
Mixing...................................... 99
7.3.1.1
Mixing Two-Component Coatings...............100
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