spray life to 1/4 hour. 5) Keep the remaining life mixture of 1 hour in a cold box at 50°F.
S 397-034-B00
(8) Let the sealant dry as follows:
Temperature___________ Relative Humidity_________________ Time 75°F 50% 72 Hours
120°F 50% 18 Hours
S 147-011-B00
(9)
Lightly rub the sealant smooth with a fine sandpaper, a cloth (aluminum oxide grit) or a gum rubber buffing wheel.
(10)
Repair the damaged alodine coating if it is necessary.
S 357-033-B00
TASK 51-21-95-307-025-B00
5. Corrosion Preventive Paint Application
______________________________________
A. General
(1)
The corrosion control treatment contains the steps to apply the primer before you apply the EC-843 or EC-843S Corogard or Aeroflex.
(2)
On surfaces that paint stripper can remove to bare metal, apply MIL-C-8514 wash primer and MIL-P-8585 zinc chromate primer.
(3)
On surfaces that paint stripper cannot remove to bare metal, apply BMS 10-11, type 1.
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51-21-95
ALL ú ú B01 Page 708 ú Jul 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
B.
C.
D.
E.
A
737-300/400/500MAINTENANCE MANUAL
Standard Tools and Equipment
(1)
Stainless steel pressure pot liners and mixing equipment
(2)
Metal Sieve - 60 to 80 mesh
(3)
For EC-843, DeVilbiss MBC or JGA gun - EX needle and tip, 30 or 36 air cap or Binks No. 18 gun 66 x 66, SD nozzle assembly, or equivalent. Fluid pressure 10 to 20 psi and 60 to 70 psi atomizaoion air.
(4)
For EC-843S, use a DeVilbiss MBC or JGA gun, FX needle and tip, 704 or 765 air cap, or Binks No. 18 gun 63 x 63, PB nozzle assembly, or equivalent. Fluid pressure 10 to 15 psi and 50 to 55 psi atomization air.
Consumable Materials
(1)
C00638 Primer, MIL-C-8514
(2)
C00057 Primer - Low Temperature Sensitive (Zinc Chromate), MIL-P-8585, color Y
(3)
C00298 Primer - BMS 10-11, Type I
(4)
C00035 Corrosion Resistant Coating- EC-843 (Recommended)
(5)
C00035 Corrosion Resistant Coating - EC-843-S (Recommended)
(6)
C00844 Paint - Aeroflex G12E25 (Optional)
(7)
B00491 Alcohol - Ethyl, MIL-A-6091
(8)
B00000 Alcohol - Butyl, TT-B-846
(9)
B00528 Solvent - Toluene (Toluol), TT-T-548
(10)
B00151 Solvent - Methyl Isobutyl Ketone (MIBK), TT-M-268
(11)
B00192 Solvent - BMS 3-2
(12)
B00316 Solvent - Aliphatic Naphtha, TT-N-95
(13)
B00079 Solvent - Normal Butyl Acetate, TT-B-838
(14)
B00139 Solvent - Lacquer Thinner, TT-T-266a
(15)
B00148 Solvent - Methyl Ethyl Ketone (MEK), TT-M-261
(16)
B00000 Aeroflex Thinner - C25/90S
(17)
G00034 Cloth - Clean and lint-free
(18)
G00382 Paper - Abrasive, Aluminum Oxide, 280-Grit or Finer
(19)
G00876 Paper - Abrasive, Aluminum Oxide, 400-GritReferences
(1)
AMM 51-21-99/701, Decorative Exterior Paint SystemPrepare the Surface
S 377-012-B00
(1)
On surfaces that paint stripper can remove to bare metal, do these steps immediately before you apply the primer:
WARNING: DO NOT GET METHYL ETHYL KETONE (MEK) IN YOUR MOUTH OR
_______ EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM MEK. PUT ON A PROTECTIVE SPLASH GOGGLE AND GLOVES WHEN YOU USE MEK. KEEP MEK AWAY FROM SPARKS, FLAME, AND HEAT. MEK IS A POISONOUS AND FLAMMABLE SOLVENT WHICH CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(a)
Use a clean cloth that is moist with a 1:1 mixture of Toluene and MEK to clean the surface.
(b)
When the cloth gets dirty, change to a clean cloth.
(c)
Dry the surface with a clean, dry cloth.
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