A 320 SRM 51-21-11 APLICATION OF PROTECTIVE TREATMENT TO METAL PARTS

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Customer : ENV Type : A320 Rev. Date : Nov 01, 2016 51-21-11 Application of Protective Treatment to Metal Parts Manual : SRM Selected effectivity : ITEM NOMENCLATURE QTY MATERIAL/REMARKS - Cleaning agent - Material No. 11-003 or 11-026 (Refer to CML) 2 ALODINE 1200 or ALOCROME - Material No. 13-002 (Refer to CML) 1200 3 Concentrated nitric acid - 4 Containers - Stainless steel or acid-resistant material 5 Masking tape - 6 Cotton cloth - 7 Soft-bristle brushes - Fiber-bristled or nylon 8 Hot-air dryer - 9 SCOTCH-BRITE pads - - ALODINE 1000 or 1500 - Material No. 13-003 (Refer to CML) - ALODINE PEN 1132 - Material No. 13-005 (Refer to CML) - SCOTCH-BRITE pads Type A fine - Local purchase (d) Application of Chemical Conversion Coating by Brushing 1 Preparation of Brush Solution NOTE: Use either Material No. 13-002 (CCC yellow) or 13-003 (CCC colorless) in accordance with the areas to be repaired. Use pretreatment for painting (Material No. 13-003 ) on: - unpainted parts - non-painted area around static ports - parts where electrical bonding is required - when required in specific repair procedure a Mix the powder (Material No. 13-002 or 13-003 )) with deionized water in a plastic or stainless steel container at room temperature. NOTE: Use the applicable proportions as follows: Material No. 13-002 (ALODINE 1200 or ALOCROME 1200) The proportion to mix is 22 to 30 g in 1 liter of demineralized water. Contact time is 3 to 5 minutes. Material No. 13-003 (ALODINE 1000 or 15000) The proportion to mix is: For ALODINE 1500 10 to 11 g in 1 liter of demineralized water. Contact time is 1 to 3 minutes. For ALODINE 1000 3 to 3.8 g in 1 liter of demineralized water. Contact time is 2 to 5 minutes. NOTE: Refer to Chapter 01-01-18 for the definition of demineralized water. b Allow the solution to stand for a minimum of 1 hour before use. NOTE: You can disregard small amounts of insoluble material which may appear. 2 Preparation Prior to Application a Mask all surfaces so that no solution can pass into adjacent splices, seams or voids. NOTE: Surfaces which are painted, anodized or have been previously treated with the product (Material No. 13-002 or 13-003 ) need not to be masked. b Abrade the surface to be treated with SCOTCH-BRITE pads. Print Date: December 29, 2016 Page 4 of 29 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
Customer : ENV Type : A320 Rev. Date : Nov 01, 2016 51-21-11 Application of Protective Treatment to Metal Parts Manual : SRM Selected effectivity : c Clean the area with a clean cotton cloth soaked in cleaning agent (Material No. 11-003 or 11-026 ). 3 Application WARNING: MATERIALS SOAKED IN CHEMICAL CONVERSION SOLUTION (MATERI- AL NO. 13-002) CONSTITUTE A FIRE HAZARD. a Apply the solution onto the surface of the metal with a brush or lint-free cloth or by immersion procedure. Keep the surface moist by successive applications until a golden yellow film is obtained for Material No. 13-002 or an iridescent film is obtained for Material No. 13-003 . Darker powdery deposits will result in poor paint adhesion. CAUTION: CAUTION: DO NOT ALLOW THE APPLIED FILM TO BECOME DRY BEFORE IT IS RINSED WITH WATER. WHEN YOU RINSE AND DRY THE SOFT NEW COATING, EXERCISE CARE NOT TO DAMAGE THE FILM. b c d CAUTION: Rinse the area thoroughly with demineralized running clean water (minimum 2 minutes). Dry off the area with hot (maximum 60° C (140° F)), oil free low-pressure air. Apply the required paint coatings as soon as possible but within 16 hours (Refer to Chapter 51-23-11 ). WEAR PROTECTIVE EQUIPMENT AND OBEY MANUFACTURER’S INSTRUCTIONS. (e) Application of Chemical Conversion by Pen NOTE: The use of ALODINE PEN 1132 (Material No. 13-005 ) is a non-electrolytic process driedin-place coating. It can be used as an alternative to pretreatment for painting (Material No. 13-002 ) for small touch-up repairs not exceeding 20000 mm² (31 in²). 1 Preparation prior to application a b Mask all the surfaces so that no solution can pass into adjacent splices, seams or voids. NOTE: Anodized areas or areas already treated with ALODINE PEN 1132 (Material No. 13-005 ) need not to be masked. Abrade the surface to be treated with SCOTCH-BRITE pads. c Clean the area with a clean cotton cloth soaked in cleaning agent (Material No. 11-003 or 11-026 ). d 2 Application a b Dry the surface. Activation of the pen Remove the cap, hold the pen with the felt tip downwards. Press the tip of the pen against a cotton cloth. This will open the valve, allowing ALODINE 1132 to reach the application tip. A new unit should charge in 30 to 45 seconds. When the ALODINE wets the tip and the cotton cloth, release pressure. Unit is ready to use. The tip shall be not excessively wet prior to its use. Apply ALODINE 1132 to the part with firm, smooth, even and continues strokes. Overlap each stroke by 50% to ensure full coverage. Print Date: December 29, 2016 Page 5 of 29 © AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A 320 SRM 51-21-11 APLICATION OF PROTECTIVE TREATMENT TO METAL PARTS

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