(e)
Clean the area with a vacuum cleaner to remove the flakes of the used finish and other unwanted material.
S 377-063
(5) If the alodine layer is worn or damaged, you must apply the alodine layer before you apply the new sealant or the finish.
CAUTION: USE ONLY ALODINE 600 TO REPAIR ALUMINUM WING SURFACES.
_______ PRIMER ADHESION PROBLEMS CAN OCCUR IF OTHER ALODINE SOLUTIONS ARE USED.
(a) Apply an alodine layer to the surface with Alodine 600 (SRM 51-20-01).
S 397-066
(6) Repair all of the sealant that you removed or caused damage to when you removed the corrosion (AMM 28-11-00/801).
G. Prepare to Apply the Corrosion Resistant Finish
S 117-067
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. SOLVENTS MAY BE FLAMMABLE OR HARMFUL TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
(1) Make sure that all equipment used to apply the corrosion resistant finish is clean.
(a) If you are not sure that it is clean, clean the equipment with solvent, Series 81 (AMM 20-30-81/201) before you apply the corrosion resistant finish.
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S 117-068
(2) Make sure that all surfaces of the fuel tank where you apply corrosion resistant finish are clean.
(a) If you are not sure a surface is clean, clean the surfaces of the fuel tank with BMS 11-7 solvent before you apply the corrosion resistant finish.
S 557-069
(3) Make sure there are sufficient corrosion resistant materials to apply all of the corrosion resistant finish.
S 557-070
(4) Refer to the Task: Keep and Mix the Corrosion Resistant Finish Correctly, to make sure the corrosion resistant finish was kept correctly and that it was not kept for too much time.
S 957-071
(5) Apply masking tape to these equipment areas: (a) Areas in the fuel tank that are not part of the structure and that are adjacent to the surfaces where you apply the finish (topcoat).
S 377-072
(6) Do not apply corrosion resistant finish to these surfaces: (a) Bonding surfaces (b) Clamps (c) O-ring surfaces (d) Valves (e) Fuel measuring sticks (f) Tank units (g) Compensator units (h) Wire bundles (i) Boost pumps (j) Filler caps
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(k) Other equipment that is not a part of the structure.
H. Apply the Corrosion Resistant Finish (Topcoat)
S 377-073
(1)
Do the procedure, Mix the Corrosion Resistant Finish, in the Task: Keep and Mix the Corrosion Resistant Finish Correctly (Fig. 702).
S 557-074
(2)
Make sure you keep the corrosion resistant finish at 50° to 100°F (10.0° to 37.8°C) with less than 85% relative humidity when you apply it.
S 377-075
WARNING:_______MAKE SURE YOU HAVE A GOOD FLOW OF AIR. OBEY ALL OF THE FIRE PRECAUTIONS WHEN YOU APPLY THE CORROSION RESISTANT FINISH. BAD INJURIES TO PERSONS CAN EASILY OCCUR.
(3) If you apply the corrosion resistant finish (topcoat) with a brush, do these steps:
NOTE: The sealant must be tack-free (AMM 28-11-00/801).
____
(a) Apply a thin layer of corrosion resistant finish (approximately 0.0005 inch) with a soft bristle paint brush.
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