Glosss. AkzoNobel Aerospace Coatings. Product Group. Alumigrip Base Coat on. base. Characteristics. Coat clear. coat system.

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1 Base Coat Product Group Characteristics Components Product Information Base Curing Solution Activator Options High Solids Polyurethane Topcoat - Base Coat is a 3-component, high solids, durable, polyurethane base coat, formulated to exceed the performance and appearance requirements of the general aviation (GA) industry. The Base Coat should be used with Clear Coat as part of a base coat / clear coat system. - Designed to meet the rigorous requirements of the MIL-PRF specification. - Base coat / clear coat system helps reduce cycle time. - Low VOC; high solids technology. - Resistant to military and commercial aircraft fluids. - Solvent resistant. Base Coat (4400GXXXXX) CS4904 A4955 (Solid colors cool temperatures) A4956 (Solid colors standard) A4957 (Solid colors warm temperatures) See application recommendations, page 3. Specifications Qualified Product List AkzoNobel Aerospacee Coatings Hawker Beechcraft Certification BS The complete qualified product list (QPL) can be found at: Surface Conditions Cleaning - Surface pretreatment is an essential part of the painting process. - Base Coat is compatible with most commonly used aerospace primers, however we advise to use the following primers / surfacers: - 10P (Europe only) - Observe the recoatability times of the relevant primer. - Apply Base Coat on clean primer. Remove oil, grease and other contamination prior to application. Page 1 of 5

2 Base Coat Surface Conditions Cleaning Continued - Recondition aged primers or topcoats with e.g. Scotch-Brite Type A very fine to a uniform matt surface. - Remove dust with e.g. tack rags just prior to application of Base Coat Instruction for Use Mixing Ratio (volume) 2 parts 1 part 1 part Base Coat (4400GXXXXX) CS49044 A4955, A4956, or A4957 Induction Time - Allow products to acclimatize to room temperature beforee use. - Stir or shake Base Coat thoroughly until the product is uniformly homogenized before adding the curing solution. - Add the CS4904 and stir the catalyzed mixture thoroughly. - Add the A4955, A4956, or A4957activator and stir the activated mixture again thoroughly. 15 minutes Initial Spraying Viscosity (25º ºC/77ºF) seconds Signature Zahn-Cup 2 Pot Life (25º ºC/77ºF) Viscosity measurements are provided as guidelines only and are not to be used as quality control parameters. Certified information is provided by certification documentation available on request hours, depending on color. Dry Film Thickness (DFT) micron (μm) mils Page 2 of 5

3 Base Coat Application Recommendations Conditions Activator Options: A4955 Temperature: F/18 24 C A F/21 27 C A F / 26 C Relative Humidity: 15 55% 20 60% 60% Equipment Number of coats : Hiding Flash Time: minutes minutes minutes The quality of the application of all coatings will be influenced by the spray equipment chosen and the temperature, humidity, and air flow of the paint application area. When applying the product for the first time, it is recommended that test panels be prepared in order to identify the best equipment settings to be used in optimizing the performance and appearance of the coating. Base coat may be applied in conditions outside of the limits shown above. Care must be excercised to ensure a satisfactory result. Please contact your local representative to determine the proper application techniques and choice of activators when environmental conditions fall outside of the recommendedd range. Air mm nozzle orifice HVLP mm nozzle orifice LP Electrostatic mm nozzle orifice Air Electrostatic in. nozzle orifice Apply a single uniform wet coat (1. 0 mils wet) of Base Coat, flash minutes depending on the activator used, followed by a box coat. Repeat this process until desired film thickness is achieved (using flash times listed above). The total box coats should achieve the required dry layer thicknesss of micron (μm) ( mils). Some colors may require a slightly higher film thickness to achieve full hide. Cleaning of Equipment TR-19 or MEK for conventional spray equipment. Physical Properties Drying Times (25 +/- 2ºC / 77 +/- 2ºF, 55 +/- 5% RH) Dry to dust free Dry to tape Full cure minutes 1 2 hours 7 days Page 3 of 5

4 Base Coat Theoretical Coverage Dry Film Weight Volatile Organic Compounds Gloss (60º) Dry times will vary depending combinations of temperature, humidity and airflow m 2 per liter ready to apply at 25.4 μm dry film thicknesss 778 ft 2 per US gallon ready to apply at 1.0 mil dry film thickness 39.7 g/m 2 / 25.4 μm lbs/ft 2 /1.0 mil Max g/l Max. 3.5 lb/gal 85 max GU Color Various Flash-point Base Coat (Solid colors) *Refer to MSDS (see note) 4904 (CS4904) 102 F / 39 C 4955 (A4955) 4956 (A4956) 4957 (A4957) *Refer to Material Safety Data Sheet (MSDS) for each individual base component for specificc flashpoint data. Storage Shelf life 5-38 C ( F) Store the product dry and at a temperature between 5ºC and 38ºC (40 ºF and 100ºF) per specification. Store in the original unopened containers. Storage temperature may vary per OEM specification requirements. Refer to container label for specific storage life information. 24 months per commercial specification. Shelf life may vary due to OEM specification requirements. Refer to container label for specific shelf life information. Page 4 of 5

5 Base Coat Safety Precautions Comply with all local safety, disposal and transportation regulations. Check the Material Safety Data Sheet (MSDS) and label of the individual products carefully before using the products. The MSDSs are available on request. Issue date: November 2011 (supersedes August 2011) - FOR PROFESSIONAL USE ONLY IMPORTANT NOTE The information in this data sheet is not intended to be exhaustivee and is based on the present state of our knowledge and on current laws: any person using the product for any purpose other than that specifically recommended in the technical data sheet without first obtaining written confirmation from us as to the suitability of the product for the intended purpose does so at his own risk. It is always the responsibility of the user to take all necessary steps to fulfill the demands set out in the local rules and legislation. Always read the Material Dataa Sheet and the Technical Data Sheet for this product if available. All advice we give or any statement made about the product by us (whether in this data sheet or otherwise) is correct to the best of our knowledge but we have no control over the quality or the condition of the substrate or the many factors affecting the use and application of the product. Therefore, unless we specifically agree in writing otherwise, we do not accept any liability whatsoever for the performance of the product or for any loss or damage arising out of the use of the product. All products supplied and technical advice given is subject to our standard terms and conditions of sale. You should request a copy of this document and review it carefully. The information contained in this data sheet is subject to modification from time to time in the light of experience and our policy of continuous development. It is the user's responsibility to verify that this data sheet is current prior to using the product. Brand names mentioned in this data sheet are trademarks of or are licensed to AkzoNobel. Scotch-Brite is a registered trademark of 3M Corporation Page 5 of 5