1、INCH-POUND MIL-PRF-32239 3 May 2007 PERFORMANCE SPECIFICATION COATING SYSTEM, ADVANCED PERFORMANCE, FOR AEROSPACE APPLICATIONS This specification is approved for use by all Departments and Agencies of the Department of Defense 1. SCOPE 1.1 Form. This specification establishes the requirements for co
2、ating systems having high durability to be used in finishing aircraft exterior surfaces. These coating systems normally are comprised of a surface treatment, a primer, and a topcoat and include a chemical stripper and a cleaning compound for topcoat washing. 1.2 Application. Systems are qualified fo
3、r use on external surfaces of military aircraft but are not limited to such application. If the coating systems qualified to this specification are to be used on other than external surfaces, further testing will be required for the specific application. 1.3 Classification. The systems under this sp
4、ecification consist of the following types, classes, and grades. Type 1: Coating system containing chromium compounds. Type 2: Coating system, chromium free. Class 1: Standard Flexibility Coating System Class 2: High Flexibility Coating System Grade 1: Standard Pigmented Coating System Grade 2: Low
5、IR Pigmented Coating System Comments, suggestions, or questions on this document should be addressed to ASC/ENOI, 2530 Loop Road West, Wright-Patterson AFB OH 45433-7101 or emailed to Engineering.Standardswpafb.af.mil. Since contact information can change, you may want to verify the currency of this
6、 address information using the ASSIST Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 8010 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32239 1.4
7、Colors. Coating systems should be furnished in all colors and gloss ranges as designated in the current issue of FED-STD-595. Colors not in FED-STD-595 should be furnished as specified by the procuring activity. 1.5 Safety-hazardous materials. While the materials, methods, applications, and processe
8、s described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe, proper use and disposal of any hazardous mater
9、ials and to take necessary precautionary measures to ensure the health and safety of all personnel involved. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other se
10、ctions of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification
11、, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in
12、 the solicitation or contract. FEDERAL STANDARDS FED-STD-141 Paint, Varnish, Lacquer and Related Materials: Methods of Inspection, Sampling and Testing FED-STD-313 Material Safety Data, Transportation Data, and Disposal Data for Hazardous Materials Furnished to Government Activities FED-STD-595 Colo
13、rs used in Government Procurement: FED-STD-595/36118 Gray, Lusterless (para 3.6.1) FED-STD-595/13538 Yellow Gloss (para 3.6.5) FED-STD-595/12197 Orange, Gloss (para 3.6.5) FED-STD-595/11136 Red, Gloss (para 3.6.5) FED-STD-595/17925 Miscellaneous, Gloss (para 4.5.1 e) FED-STD-595/36173 Gray, Lusterle
14、ss (para 6.3.1) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32239 DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-C-8507 Coating, Wash Primer (Pretreatment) for Metals, Applications of (for Aeronautical Use) Inactive for New Design MIL-C-8514
15、(ASG) Coating Compound, Metal Pretreatment, Resin-Acid MIL-PRF-23699 Lubricating Oil, Aircraft Turbine Engines, Synthetic Base. MIL-PRF-83282 Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base, Aircraft. MIL-PRF-85285 Coating: Polyurethane, Aircraft and Support Equipment MIL-PRF-85570 Clean
16、ing Compounds, Aircraft, Exterior MIL-PRF-87937 Cleaning Compounds, Aerospace Equipment DEPARTMENT OF DEFENSE STANDARDS MIL-STD-129 Military Marking for Shipment and Storage (Copies of these documents are available online via http:/assist.daps.dla.mil/quicksearch or from the Standardization Document
17、 Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the is
18、sues of these documents are those cited in the solicitation or contract. Code of Federal Regulations 29 CFR 1910.1200 Occupational Safety and Health Standards: Material Safety Data Sheets; Preparation and Submission (Copies are available from the Superintendent of Documents, U.S. Government Printing
19、 Office, North Capitol E1-2001 ASTM G 155 Standard Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials (DoD Adopted) ASTM D 522 Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings (DoD Adopted) ASTM D 523 Standard Test Method for Specular Glos
20、s (DoD Adopted) ASTM D 1200 Standard Test Method for Viscosity by Ford Viscosity Cup (DoD Adopted) ASTM D 2243 Standard Test Method for Freeze-Thaw Resistance of Water-Borne Coatings (DoD Adopted) ASTM D 2244 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrument
21、ally Measured Color Coordinates (DoD Adopted) ASTM D 2247 Testing Coated Metal Specimens at 100 Percent Relative Humidity. (DoD Adopted) ASTM D 2794 Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact) (DoD Adopted) ASTM D 2803 Metal, Organic Coatings on, Filiform Corrosion Re
22、sistance of, (DoD adopted) ASTM D 2805 Hiding Power of Paints (DoD Adopted) ASTM D 3335 Low Concentrations of Lead, Cadmium, and Cobalt in Paint by Atomic Absorption Spectroscopy (DoD Adopted) ASTM D 3359 Standard Test Methods for Measuring Adhesion by Tape Test 5Provided by IHSNot for ResaleNo repr
23、oduction or networking permitted without license from IHS-,-,-MIL-PRF-32239 ASTM D 3363 Standard Test Method for Film Hardness by Pencil Test (DoD Adopted) ASTM D 3718 Standard Test Method for Low Concentrations of Chromium in Paint by Atomic Absorption Spectroscopy (DoD Adopted) ASTM D 3960 Volatil
24、e Organic Content (VOC) of Paints and Related Coatings (DoD Adopted) (Copies of this document are available from ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, Pennsylvania, USA 19428-2959. Order electronic standards online at www.astm.org). ISO Publications ISO 1513 Pain
25、ts and Varnishes - Examination and Preparation of Samples for Testing ISO 4617 Paints and Varnishes - List of Equivalent Terms ISO 4618 Paints and Varnishes - Terms and Definitions for Coating Materials ISO 15528 Paints, Varnishes and Raw Materials for Paints and Varnishes Sampling Copies are availa
26、ble from American National Standards Institute, Inc., 25 West 43rd Street, New York, NY 10036-8002, and International Organization for Standardization (ISO), 1, rue de Varemb, Case postale 56, CH-1211 Genve 20, Switzerland. Order electronic standards online at http:/www.iso.org/iso/en/CatalogueListP
27、age.CatalogueList. 2.5 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obt
28、ained. 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32239 3. REQUIREMENTS 3.1 Qualification. The coating system furnished under this specification shall be products which have been tested and have passed the qualification tests specified
29、herein and have been listed or approved for listing on the applicable qualified products list (QPL) at the time of award of contract (see 6.2). Changes shall not be permitted in the formulation of an approved product unless specific, written approval of the qualifying activity is obtained. 3.2 Mater
30、ials. The coating system shall consist of a surface treatment, a primer, and a topcoat. The coating system shall also include, in the form of COTS products, a chemical stripper and a cleaning compound for topcoat washing. The aforementioned are the minimum products necessary to achieve the performan
31、ce requirements detailed herein. Unicoat systems are acceptable. Composition of the coating system components is not specified, except for the following. 3.2.1 Nonqualification of system components. This specification does not qualify cleaners or chemical strippers. Qualified products for cleaners s
32、hall be selected from the Qualified Products List (QPL) of MIL-PRF-87937, Type IV, or MIL-PRF-85570 Type II. Qualified products for chemical strippers shall be selected from the Warner-Robins ALC Purchase Description (U.S. Air Force), Oklahoma City ALC Purchase Description (U.S. Air Force), or liste
33、d in Technical Order 1-1-8 (U.S. Air Force). 3.3 Coating system components. The coating system, normally comprised of a surface treatment, a primer, and a topcoat, as well as a chemical stripper and a cleaning compound for topcoat washing, shall consist of the minimum number of products necessary to
34、 achieve the performance requirements detailed herein. Unicoat systems are acceptable. Composition of the coating system components is not specified, except for the following. 3.3.1 Restrictions in chemical composition. When tested in accordance with ASTM D 3335, no component of any system element s
35、hall contain cadmium or cadmium compounds, or more than 0.05 percent of lead or lead compounds. Type 2 system components shall not contain chromium or chromium compounds when tested in accordance with ASTM D 3718. 3.3.2 Toxicity. Manufacturers of system components shall certify that any materials su
36、pplied under this specification have no adverse effect on the health of personnel when used for its intended purpose and with the precautions as identified on shipping containers and on the material safety data sheet (see 6.3.3). 7Provided by IHSNot for ResaleNo reproduction or networking permitted
37、without license from IHS-,-,-MIL-PRF-32239 3.4 System component physical requirements. Coating system physical requirements are summarized in Table I. Table I. Physical requirements. Property Requirement Conditioning Test Method Quality 3.4.1 As received in original container ISO 1513 Storage Stabil
38、ity 3.4.2 As received in original container 4.6.1 Accelerated Storage Stability 3.4.3 As received in original container 4.6.2 Freeze/Thaw Stability 3.4.4 As received in original container 4.6.3 VOC content 3.5.1 Primer 340 g/l Topcoat- 420 g/l Mixed, prepared for application 4.6.4 Odor 3.5.2 Mixed,
39、prepared for application 4.6.5 Viscosity/Pot Life 3.5.3 Mixed, prepared for application 4.6.6 Drying Time 3.5.4 Applied on test panels 4.6.7 Wet-Edge 3.5.5 Applied on test panels 4.6.8 3.4.1 Quality. Coating system components taken from original containers as received shall be free from extraneous m
40、atter and show no skinning, gelling, hard settlement or other objectionable properties which will prevent satisfactory application to produce a defect free film. All Materials or Components. Materials or components shall be capable of being reincorporated into a smooth, homogenous, and pourable mixt
41、ure. It shall be free of grit, skin, seeds, lumps, foreign contaminants, and thickening or livering. Pretreatment Powders. System components supplied in powder form shall be uniform in composition and quality, and be free from impurities and other defects that impair usability and adversely affect p
42、erformance when the powder is mixed with water or other materials as specified by the manufacturer under normal agitation in preparation for use. Mixing. All components shall be readily miscible when mixed according to manufacturers instructions. 8Provided by IHSNot for ResaleNo reproduction or netw
43、orking permitted without license from IHS-,-,-MIL-PRF-32239 3.4.2 Storage stability. The contents of each component of the coating system or premixed liquid surface pretreatment, as packaged by the manufacturer, shall meet all requirements of this specification when tested in accordance with 4.6.1.
44、A subset of testing shall be performed using coating system components that have been subjected to the requirements of this paragraph. The subset of requirements and corresponding tests shall be 3.5.3, 3.6.1, 3.6.4, 3.6.6.1, 3.6.7.1, 3.6.8 (MIL-PRF-83282 only). For touch-up and repair kits, contents
45、 of the coating system material or premixed liquid surface pretreatment repackaged by manufacturers approved packaging companies shall meet all the requirements of this specification after one year minimum indoor storage from date of repackaging, where the daily temperature of the ambient air is mai
46、ntained between 35 to 95 F (1.7 to 35 C). 3.4.3 Accelerated storage stability. Each component of the coating system excluding the system pretreatment, cleaner and chemical stripper shall meet all the requirements of this specification when tested in accordance with 4.6.2. The accelerated storage con
47、ditions shall be 7 days at 1405 F (603 C). A subset of testing shall be performed on the coating samples that have been subjected to the requirements of this paragraph. The subset of requirements and corresponding tests shall be 3.5.3, 3.6.1, 3.6.4, 3.6.6.1, 3.6.7.1, 3.6.8 (MIL-PRF-83282 only). 3.4.
48、4 Freeze/thaw stability. Water based components, excluding the system pretreatment, cleaner, and chemical stripper, as packaged by the manufacturer, shall meet all the requirements specified herein after being subjected to five cycles of freezing and thawing when tested in accordance with 4.6.3. A s
49、ubset of testing shall be performed on the coating samples that have been subjected to the requirements of this paragraph. The subset of requirements and corresponding tests shall be 3.5.3, 3.6.1, 3.6.4, 3.6.6.1, 3.6.7.1, 3.6.8 (MIL-PRF-83282 only). 3.5 Admixed product properties. 3.5.1 VOC content. The maximum VOC content at application of system coatings classified as primers shall be no grea
