A. Cured coatings may be brought to a high metallic polish by burnishing with a stiff-bristle brush, with a very soft brass wire brush or with a soft cloth buffing wheel.
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51-21-161 Page 702 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 15/73
DECORATIVE PAINT SYSTEM - CLEANING/PAINTING
1. General
A. This subject contains procedures for all approved BMS 10-72 decorative paint system; refer to par. 3 for a listing.
B. Procedures are also given for paint systems not described by BMS 10-72. Refer to par. 4.
C. If removable drain valves are installed, remove valves before painting (Ref 51-41-13).
2. Equipment and Materials
A. Finishes (Ref 20-30-41)
(1)
Primer - BMS 10-11, Type 1 (yellow and green)
(2)
Primer - BMS 10-79
(3)
Exterior Decorative Paint System - BMS 10-72
(4)
Exterior Decorative Enamel - BMS 10-60, type II
B. Spray equipment
C. Abrasives (Ref 20-30-51)
(1)
Scotchbrite pads
(2)
Abrasive paper, 400 grit or finer, and 280 grit or finer
D. Tack rags
E. Cheesecloth
F. Solvents - Final Cleaning of Metal Prior to Painting (Series 84) (Ref AMM/SOPM 20-30-84); Final Cleaning of Solvent Resistant Organic Coatings Prior to Painting (Series 86) (Ref AMM/SOPM 20-30-86)
G. Masking tape (Ref 20-30-51)
H. Stripper - Turco 5351 (Ref 20-30-31)
3. BMS 10-72 Decorative Paint Systems
WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
A. BMS 10-72, Type 1, (Bastic Finch Wash Primer, Intermediate Primer and Enamel)
(1)
Prepaint clean and pretreat surface (Method 1)(Ref 51-21-21 Cleaning/Painting).
(2)
Apply decal markings as necessary.
(3)
Apply wash primer 364-1 per par. 5 and 6.
(4)
Apply intermediate primer 463-6-5 per par. 5 and 6.
(5)
Apply enamel topcoat 463-3 and 663-3 per par. 7 and 8. For 783-3 metallic enamel colors, refer to par. 9.
B. BMS 10-72, Type I (U.S. Paint Wash Primer, Intermediate Primer and Enamel)
(1)
Prepaint clean and pretreat surface (Method 1)(Ref 51-21-21, Cleaning/Painting).
(2)
Apply decal markings as necessary.
(3)
Apply wash primer C22Y-7245 per par. 5 and 6.
May 01/98 51-21-171 Page 701 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(4)
Apply intermediate primer AA92-I-6 per par. 5 and 6.
(5)
Apply enamel topcoat AA92 per par. 7 and 8. For metallic enamel colors, refer to par. 9.
C. BMS 10-72, Type I (U.S. Paint Wash Primer, U.S. Paint Intermediate Primer and Finch Enamel)
(1)
Prepaint clean and pretreat surface (Method I) (Ref 51-21-21, Cleaning/Painting).
(2)
Apply decal markings as necessary.
(3)
Apply wash primer C22Y-7245 per par. 5 and 6.
(4)
Apply intermediate primer AA92-I-6 per par. 5 and 6.
(5)
Apply enamel topcoat 643-3 and 663-3 per par. 7 and 8. For 683-3 metallic enamel colors, refer to par. 9.
D. BMS 10-72, Type I (Sterling Wash Primer, Intermediate Primer and Enamel)
(1)
Prepaint clean and pretreat surface (Method I) (Ref 51-21-21, Cleaning/Painting).
(2)
Apply decal markings as necessary.
(3)
Apply wash primer M3225 per par. 5 and 6.
(4)
Apply intermediate primer U-1000 per par. 5 and 6.
(5)
Apply enamel topcoat U-10XX-3 per par. 7 and 8. For metallic enamel colors, refer to par.
9.
E. BMS 10-72, Type II (Alodine 1000 or 1200, BMS 10-11 Primer and Finch Enamel)
(1)
Prepaint clean and pretreat surface (Method II) (Ref 51-21-21, Cleaning/Painting).
(2)
Apply decal markings as necessary.
(3)
Apply BMS 10-11 primer, Finch 463-6-5, per par. 5 and 6.
(4)
Apply enamel topcoat 643-3 and 663-3 per par. 7 and 8. For 683-3 metallic enamel colors, refer to par. 9.
F. BMS 10-72, Type III (Alodine 1000 or 1200, BMS 10-79, Type II Primer and Finch Enamel)
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