W DOC AIRBUS | AMM A320F

Repair of the Paint Coat on Components


TASK 25-20-00-370-006-A
Repair of the Paint Coat on Components


WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
2
CLOTH-EMERY (GRADE 320 - 400)
No specific
2
GAGE-THICKNESS, PAINT BORER 518
No specific
2
GUN - AIR SPRAY, STANDARD PAINT
No specific
2
NOZZLE DIA 1.5 MM (1/16 IN)
No specific
2
PAPER - MASKING
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.04BAM6)
Pore Filler Polyurethane-- - Furnishing
(Material No.04JMD9)
Top Coat Polyurethane-- Decorative Furnishing
(Material No.05RDA1)
Adhesive Film Tape-Masking - -
(Material No.08BBD1)
Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 24-42-00-861-001-A
Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A
De-energize the Ground Service Network Supplied from the External Power
TASK 25-13-00-370-001-A
Painting of the Internal Cockpit Surfaces
3. Job Set-up
Subtask 25-20-00-860-056-A
A. Aircraft Maintenance Configuration
   (1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
   (2) If necessary, remove the component you will repair from the aircraft (refer to the related AMM chapter).
4. Procedure
Subtask 25-20-00-370-066-A
A. Repair of the Paint Coating of the Internal Cockpit Surfaces
   (1) For the repair of the cockpit internal paint-coatings refer to (Ref. AMM TASK 25-13-00-370-001).
Subtask 25-20-00-370-067-A
B. Repair of the Paint Coating of Cabin Glass-reinforced Plastic Components
NOTE: The procedure that follow agrees with the JAR/FAR. 25.853 heat release/smoke density component repairs to the passenger compartment.
NOTE: The procedure is approved for the repair of surfaces smaller than 24 in.2 (154.84 cm2).
   (1) Clean the component with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
   (2) Apply PAPER - MASKING and Adhesive Film Tape-Masking - - (Material No.05RDA1) to the adjacent components and areas.
   (3) Make the surface smooth with a CLOTH-EMERY (GRADE 320 - 400).
   (4) Clean the surface with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a Textile-Lint free Cotton - (Material No.14SBA1) .
   (5) If necessary use pore filler Pore Filler Polyurethane-- - Furnishing (Material No.04BAM6) to make the surface smooth:
     (a) Apply the pore filler several times to optimize the surface.
     (b) Let the pore filler Pore Filler Polyurethane-- - Furnishing (Material No.04BAM6) time to cure.
     (c) Make the painted surface smooth with a CLOTH-EMERY (GRADE 320 - 400).
     (d) Clean the smooth surface with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a Textile-Lint free Cotton - (Material No.14SBA1) .
   (6) Prepare a mixture for a smooth finish:
     (a) Mix the top coat Top Coat Polyurethane-- Decorative Furnishing (Material No.04JMD9) with hardener and thinner.
NOTE: Obey the reaction and the pot life time, before you use the mixture.
NOTE: For A318/A319/A320/A321, only these top coats are permitted: ALEXIT FST 404-12, ALEXIT FST 346-55, FRS40 and FR2/55.
     (b) The temperature must be between 15 DEG.C (59.00 DEG.F) and 30 DEG.C (86.00 DEG.F), relative humidity 35-75% .
     (c) For a smooth finish apply the mixture in 1-2 cross coats with a GUN - AIR SPRAY, STANDARD PAINT and a NOZZLE DIA 1.5 MM (1/16 IN).
     (d) The coat thickness of a smooth finish must be between 0.05 mm (0.0020 in.) and 0.1 mm (0.0039 in.). Measure the thickness of the paint layer with the GAGE-THICKNESS, PAINT BORER 518, or equivalent.
NOTE: The smooth finish is dust dry after 15 minutes, transport dry after 25 minutes, and fully dry after 7 days at room temperature.
   (7) Prepare a mixture for a textured finish.
     (a) Mix the top coat Top Coat Polyurethane-- Decorative Furnishing (Material No.04JMD9) with hardener and thinner.
NOTE: Obey the reaction and the pot life time, before you use the mixture.
NOTE: For A318/A319/A320/A321, only these top coats are permitted: ALEXIT FST 404-12, ALEXIT FST 346-55, FRS40 and FR2/55.
     (b) The temperature must be between 15 DEG.C (59.00 DEG.F) and 30 DEG.C (86.00 DEG.F), relative humidity 35-75%.
     (c) For a textured finish apply the mixture in 1-4 cross coats with a GUN - AIR SPRAY, STANDARD PAINT and a NOZZLE DIA 1.5 MM (1/16 IN).
     (d) The coat thickness of a textured finish must be between 0.03 mm (0.0012 in.) and 0.09 mm (0.0035 in.). Measure the thickness of the paint layer with the GAGE-THICKNESS, PAINT BORER 518, or equivalent.
NOTE: The textured finish is dust dry after 20 minutes, transport dry after 8 hours, and fully dry after 7 days at room temperature.
     (e) If necessary you can make the cure faster when you add heat 60 DEG.C (140.00 DEG.F) to the surface.
NOTE: The textured finish is then transport dry after 40 minutes and fully dry after 12 hours.
   (8) Remove the masking tape and the masking paper from the adjacent components or areas.
Subtask 25-20-00-370-068-A
C. Repair of the Paint Coating of Thermoplastic Components and Aluminum Parts in the Cabin
NOTE: The procedure that follow agrees with the JAR/FAR 25.853 heat release/smoke density component repairs to the passenger compartment.
NOTE: The procedure is approved for repair of surfaces smaller than 24 in.2 (154.84 cm2).
   (1) Clean the component with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a Textile-Lint free Cotton - (Material No.14SBA1) .
   (2) Apply PAPER - MASKING and Adhesive Film Tape-Masking - - (Material No.05RDA1) to the adjacent components and areas.
   (3) Make the surface smooth with a CLOTH-EMERY (GRADE 320 - 400).
   (4) Clean the surface with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
   (5) If necessary use pore filler Pore Filler Polyurethane-- - Furnishing (Material No.04BAM6) to make the surface smooth.
     (a) Apply the pore filler several times to optimize the surface.
     (b) Let the pore filler Pore Filler Polyurethane-- - Furnishing (Material No.04BAM6) time to cure.
     (c) Make the painted surface smooth with a CLOTH-EMERY (GRADE 320 - 400).
     (d) Clean the smooth surface with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a Textile-Lint free Cotton - (Material No.14SBA1) .
   (6) Prepare a mixture for a textured finish:
     (a) Mix the top coat Top Coat Polyurethane-- Decorative Furnishing (Material No.04JMD9) with hardener and thinner.
NOTE: Obey the reaction and the pot life time, before you use the mixture.
NOTE: For A318/A319/A320/A321, only these top coats are permitted: ALEXIT FST 404-12, ALEXIT FST 346-55, FRS40 and FR2/55.
     (b) The temperature must be between 15 DEG.C (59.00 DEG.F) and 30 DEG.C (86.00 DEG.F), relative humidity 35-75%.
     (c) For a textured finish apply the mixture in 1-4 cross coats with a GUN - AIR SPRAY, STANDARD PAINT and a NOZZLE DIA 1.5 MM (1/16 IN).
     (d) The coat thickness of a textured finish must be between 0.03 mm (0.0012 in.) and 0.09 mm (0.0035 in.). Measure the thickness of the paint layer with the GAGE-THICKNESS, PAINT BORER 518, or equivalent.
NOTE: The textured finish is dust dry after 20 minutes, transport dry after 8 hours and fully dry after 7 days at room temperature.
     (e) If necessary you can make the cure faster when you add heat 60 DEG.C (140.00 DEG.F) to the surface.
NOTE: The textured finish is then transport dry after 40 minutes and fully dry after 12 hours.
   (7) Remove the masking tape and the masking paper from the adjacent components or areas.
5. Close-up
Subtask 25-20-00-860-057-A
A. Close Access
   (1) If necessary, install the component in the aircraft (refer to the related AMM chapter).
   (2) Make sure that the work area is clean and clear of tools and other items.
   (3) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
[Rev.10 from 2021] 2026.03.31 23:29:57 UTC