Technical data

3 SURFACE PREPARATION AND CHEMI-
CAL PREPAINT SURFACE TREAT-
MENT ........................ 3-1
3.1 SURFACE PREPARATION FOR
PAINTING AND CHEMICAL
PREPAINT SURFACE TREAT-
MENT .................. 3-1
3.1.1 Surface Preparation For Painting . . 3-1
3.1.2 Surface Preparation For Repair or
Over Coating of Damaged Or-
ganic Coating ............. 3-1
3.1.3 Scuff Sanding For Overspraying Ex-
isting Coating Systems On Air-
craft .................... 3-2
3.1.4 Solvent Wiping For Surface Prepara-
tion .................... 3-3
3.1.5 Surface Preparation For MIL-C-
27725/SAE AMS-C-27725 Inte-
gral Fuel Cell Coating ....... 3-5
3.1.6 Reactivation of Newly Applied
Primer or Tiecoat ........... 3-7
3.1.7 Surface Preparation, Unpainted Sur-
faces ................... 3-7
3.1.8 Corrosion Removal, Chemical and
Mechanical ............... 3-7
3.1.9 Preparation for Prepaint Treatment,
Unpainted Surfaces .......... 3-7
3.1.10 Water Break Inspection ......... 3-7
3.1.11 Evidence of Inadequate Cleaning . . 3-8
3.1.12 Corrosion Removal Prepaint Com-
pound, Aluminum .......... 3-8
3.1.13 Prepaint Chemical Corrosion Re-
moval Materials ............ 3-8
3.1.14 Application of MIL-C-38334/SAE
AMS-1640 Solution/Not LOX
Compatible ............... 3-8
3.1.15 Surface Treatment Materials For
Aluminum ................ 3-8
3.1.16 Touch-Up of Damaged Aluminum
Surface Treatment MIL-DTL-
5541 ................... 3-9
3.1.17 No-Rinse Process For Surface Treat-
ment of Aluminum .......... 3-9
3.1.18 Mixing MIL-C-81706/MIL-DTL-
81706 Solution ............ 3-11
3.1.19 Application of MIL-C-81706/MIL-
DTL-81706 Solutions ........ 3-11
3.1.20 Alternate Surface Preparations For
Aluminum Surfaces (PreKote
SP) .................... 3-13
3.1.21 Application of PreKote SP ....... 3-13
3.1.22 Use of PreKote SP on Exterior Sur-
faces Where Paint and Primer
Have Been Removed During
Scuff Sand, Touch-up or Repair . 3-14
3.1.23 Corrosion Removal Solution For
Magnesium ............... 3-15
3.1.24 Surface Treatment Process For Mag-
nesium .................. 3-15
3.1.25 Surface Preparation For Steel ..... 3-16
3.1.26 Masking ................... 3-16
3.1.27 Tack Ragging ............... 3-17
4 PAINTING APPLICATION METHODS . . . 4-1
4.1 GENERAL ................. 4-1
4.2 SPRAY METHODS ........... 4-1
4.2.1 HVLP Spray ................ 4-1
4.2.2 Hot Spray .................. 4-1
4.2.3 Airless Spray ................ 4-2
4.2.4 Air-Assisted Airless Spray ....... 4-2
4.2.5 Electrostatic Spray ............ 4-2
4.3 SPRAY PAINTING EQUIPMENT,
GENERAL ............... 4-2
4.3.1 HVLP Spraying Systems
........ 4-2
4.3.2 Spray Gun, General ........... 4-2
4.3.3 Classes of Spray Guns ......... 4-2
4.3.4 Material Containers ........... 4-3
4.3.5 Air Compressors ............. 4-5
4.3.6 Air Regulators or Transformers . . . 4-5
4.3.7 Air Condensers .............. 4-5
4.3.8 Air Supply ................. 4-5
4.3.9 Hose ..................... 4-5
4.4 SPRAY PAINTING ........... 4-5
4.4.1 Gun Techniques .............. 4-5
4.4.2 Gun Adjustments ............. 4-11
4.4.3 Painting Difficulties and Remedies . 4-12
4.5 CLEANING AND MAINTE-
NANCE ................. 4-22
4.6 MECHANICAL PAINT GUN
WASHER ................ 4-23
5 PAINTING OPERATIONS FOR AIRCRAFT
AND EQUIPMENT ............... 5-1
5.1 GENERAL ................. 5-1
5.2 SAFETY AND HEALTH ASPECTS
OF PAINTING ............ 5-1
5.2.1 Respiratory Protection .......... 5-3
5.3 SPRAY BOOTHS AND PAINTING
AREAS, GENERAL ......... 5-3
5.4 PAINT BOOTH TYPES ........ 5-3
5.4.1 Dry-Type Booth .............. 5-3
5.4.2 Air-Water Wash Type Booth ..... 5-3
5.4.3 Cleaning and Maintenance ....... 5-4
5.4.4 Part and Equipment Painting Opera-
tions .................... 5-4
5.5 AIRCRAFT PAINTING OPERA-
TIONS .................. 5-4
5.5.1 Depot Level Aircraft Painting Opera-
tions .................... 5-4
5.5.2 Field Level Aircraft Painting Opera-
tions .................... 5-5
TO 1-1-8
TABLE OF CONTENTS - CONTINUED
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