1、*.% i , MIL-C-2747 0 = 9999906 0512517 5 I NOT MEASUREMENT SENSITIVE I MIL-C-82747(OS) 27 January 1988 MILITARY SPECIFICATION COATING, POLYURETHANE CLEAR, SAFFLOWER OIL MODIFIED ALKYD This specification is approved for use within the Naval Sea Systems Command, Department of the Navx and is available
2、 for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers a white airdrying, safflower oil, mcdified polyurethane alkyd resin coating (see 6.1). 1.2 Classification. The coating shall be of the following two types: Type I Type II Coating pack
3、aged in open cans Coating packaged in aerosol cans 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these docume
4、nts shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SPEC I FI CATI O NS Federal lT-T-291 PPP-P-1892 STAN DARDS Federal FED-STD-141 FED-STD-313 FED-STD-595 Thinner, Paint, Volatile Spirit
5、s (Petroleum-Spirits) Paint, Varnish, Lacquer and Related Materials; Packaging, Packing and Marking of Paint, Varnish, Lacquer and Related Materials; Methods of Inspection, Sampling and Testing Material Safety Data Sheets, Preparation and Submission of Colors Beneficial comments (recommendations, ad
6、ditions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commaning Officer, Naval Ordnance Station, Standardization Branch (ZJO), Indian Head, Maryland 20640-5000, by using the self-addressed Standardization Document Improvement Proposal (DD F
7、orm 1426) appearing at the end of this document or by letter. AMSC: NIA 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-C-2747 0 m 9999906 0532538 7 m t e.
8、4 MI L-C-82747(OS) M War y MIL-STD-105 Sampling Procedures and Tables for Inspection by Attributes MIL-STD-129 Marking for Shipment and Storage 2.1.2 Other Government publication. The following other Government publication forms a part of this specifi- cation to the extent specified herein. Unless o
9、therwise specified, the issue shall be that in effect on the date of the solicitation. DeDartment of Labor Code of Federal Regulations, Title 29 Patt 1910, Occupational Safety and Health Standards (Application for copies should be addressed to the Superintendent of Documents, U.S. Government Printin
10、g Office, Washington, DC 20402.) (Copies of specifications, standards, and publications required by contractors in connection with specific acquisi- tion functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Other publications. The following docu
11、ments form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless otherwise specified, the issues of the documents not listed in
12、the DODISS shall be the issue of the nongovernment documents which is current on the date of the solicitation. PUBLICATIONS American Society for Testing and Materials (ASTM) C 346 Standard Test Method for 45-Deg Specular Gloss of Ceramic Materials D 56 Standard Test Method for Flash Point by Tag Clo
13、sed Tester (DoD adopted) D 185 Standard Test Method for Coarse Particles in Pigments, Pastes and Paints (DoD adopted) D 563 Standard Test Method for Phthalic Anhydride Content of Alkyd Resins and Resin Solutions (DoD adopted) . Standard Test Methods for Preparation of Steel Panels for Testing Paint,
14、 Varnish, Lacquer, and Related Products (DoD adopted) D 609 D 968 Standard Test Methods for Abrasion Resistance of Organic Coatings by the Falling Abrasive Tester (DoD adopted) D 1210 Standard Test Methods for Fineness of Dispersion of Pigment Vehicle Systems (DoD adopted) D 1308 Standard Test Metho
15、ds for Effect of Household Chemicals on Clear and Pigmented Organic Finishes (DoD adopted) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A% I MIL-C-82747 BO m 999990b 0532539 9 m MI L-C-82747(OS) D 1475 Standard Test Method for Paint, Varnish, La
16、cquer and Related Products, Density of (DoD adopted) D 1640 Standard Test Methods for Drying, Curing or Film Formation of Organic Coatings at Room Temperature (DoD adopted) D 1737 Standard Test Methods for Elongation of Attached Organic Coatings with Cylindrical Man- drel Apparatus (DoD adopted) 0 2
17、372 Standard Method of Separation of Vehicle From Solvent-Reducible Paints D 2697 Standard Test Method for Volume Nonvolatile Matter in Clear or Pigmented Coatings (DoD adopted) D 2794 Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deforma- tion (Impact) D 3335 Stand
18、ard Test Method for Lcw Concentrations of Lead, Cadmium, and Cobalt in Paint by Atomic Absorption Spectroscopy (DoD adopted) D 3359 D 3363 Standard Methods for Adhesion by Tape Test Measuring (DoD adopted) Standard Test Method for Film Hardness by Pencil Test (Application for copies should be addres
19、sed to the American Society for Testing and Materials, 1916 Race St., Philadelphia, Pa. 19103.) a - Chemical Specialties Manufacturers Association (CSMA) Publication CSMA Aerosol Guide Method for Pressure Measurement in Metal Aerosol Containers (Application for copies should be addressed to Chemical
20、 Specialties Manufacturers Association, Inc., 1001 Con- necticut Avenue NW, Washington, DC 20036.) National Motor Freight Traffic Association, Inc., Agent National Motor Freight Classification (Application for copies should be addressed to the National Motor Freight Traffic Association, Inc., ATA TR
21、AFFIC Dept., 2200 Mill Road, Alexandria, VA 22314.) Uniform Classification Committee, Agent Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riverside Plata, Chicago, Illinois 60606.) (Nongovernment standards and
22、 other publications are normally available from the organizations which prepare or which distribute the documents. These documents also may be available in or through libraries or other informa- tional services.) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
23、from IHS-,-,-o MIL-C-82747 80 m 999990b 0532520 5 m -3 MI L-C-82747(0S) 2.3 Order of Precedence. In the event of a conflict between the text of this specification and the references cited herein, (except for associated detail specifications, specification sheets or MS standards), the text of this sp
24、ecifi- cation shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regula- tions unless a specific exemption has been obtained. 0 3. REQUIREMENTS 3.1 General. The coating material, for both type I and type II, shall consist of a safflower oil modified po
25、lyurethane alkyd resin, thinners conforming to TT-T-291, dryers and antiskinning agents as required to meet the requirements of this specification. 3.2 Qualitative requirements. 3.2.1 Condition in container. The coating material after premixing the pigment dispersion shall be a homogene- ous pigment
26、ed liquid free from sedimentation, thickening and deterioration. 3.2.2 Appearance and color. The coating material shall be homogeneous and shall match white color chip, number 17875 conforming to FED-STD-595. 3.2.3 Chemical resistance. The dried film shall show no discoloration, change in gloss, bli
27、stering, softening, swelling, loss of adhesion or other visible defects. 3.2.4 Dilution stability. When thinned as specified, the coating shall remain stable and uniform, showing no precipitation, curdling or separation. 3.2.5 Odor. The odor of the coating material in the container or during applica
28、tion shall not be noxious. 3.2.6 Working properties. The coating material shall be a freely working product with acceptable leveling proper- ties, that is, no seeds, runs, streaks or brush marks. 3.2.7 Type II propellant. The propellant shall be a hydrocarbon or a blend of hydrocarbons and halogenat
29、ed hydrocarbons as required to assure that the coating conforms to the requirements as specified herein. When tested as specified in 4.5.1.2.1, neither vinyl chloride nor chlorofluorocarbons 11, 12, 114, or 115 shall be present. 3.2.8 Type II dispenser. 3.2.8.1 Container. The container shall be a co
30、mmercial type metal pressure container, generally known as an aerosol container, of such construction as to assure acceptance of the finished package by common carriers oper- ating in interstate commerce, The capacity of the container shall be sufficient to contain the specified net contents of the
31、product with outage in accordance with generally recognized safe commercial practice. Each container shall be labeled as stated in 5.3.2. 3.2.8.2 Dispensing valve. The valve shall have a spray head which can be removed without releasing pres- sure from the aerosol. The valve shall have a metering or
32、ifice accessible to cleaning with a common pin after removal of the spray head. The removable spray head shall contain orifices of such dimensions as to produce spraying properties as required in 3.2.8.5. The lower end of the dip tube shall have a maximum clearance of 9.5 millimeters (3/8 inch) from
33、 the bottom of the rim of the can after storage for one week in the product (which allows for swelling of the tube). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-6 . e MIL-C-Z747 0 W 9999906 0532523 7 W MI L-C-82747(OS) 3.2.8.3 Agitation. Each d
34、ispenser of the pigmented material shall contain one or more agitators capable of dispersing the pigment by normal shaking. The agitators shall be made of materials which shall not react with or contaminate the coating or container. 3.2.8.4 Cover cap. The valve shall be protect from accidental fuwti
35、oning and damage by a rigid cover cap which shall be removable and replaceable. The color of the cover cap shall be an approximate match to the color of the coating in the container. 3.2.8.5 Spraying properties. When tested as specified in 45.2.2.4, the contents of the aerosol container shall be spr
36、ayable when stabilized at temperatures from 15O to 320 Celsius (OC) (600 to 900 Fahrenheit (OF). A minimum of 98 percent by weight of contents shall be sprayable in a pattern such as to deposit a uniform coating on a smooth vertical surface. The film shall dry free of orange peel, sags, specks, or a
37、ny other surface irregularities. Leftover coating of more than 2 percent shall constitute a defect. 3.3 Quantitative requirements. The quantitative requirements for both type I and type II shall be as specified in table I. 3.3.1 Type II quantitative requirements. 3.3.1.1 Net contents. Unless otherwi
38、se specified in the contract or purchase order (see 6.2 and 6.6), each can shall contain a minimum of 360 and a maximum of 454 grams (13-16 avoir. ounces) net weight of contents at the discretion of the contractor, and the unit shall be considered a nominal one-pint can. The contents shall meet the
39、total solids specified in the appropriate column of table II which requires that each can, regardless of net contents, shall have the same minimum amount of solids per can. 3.3.1.2 Pressure. When tested as specified in 45.2.2.3, the aerosol containers shall not burst or show evidence of leakage, dis
40、tortion, or any other defects at an equilibrium pressure which shall not exceed 140 pounds per square inch gauge (pslg) at 55“ f 1C (130“ f PF). Any failure of this test shall be cause for rejection of the batch. 0 3.4 Toxicity. The material shall have no adverse effect on the health of personnel wh
41、en used for its intended purpose in accordance with the Material Safety Data Sheet (MSDS). Questions pertinent to this effect shall be referred by the contracting activity to the appropriate departmental medical service which will act as an advisor to the contracting activity. 3.5 Material Safety Da
42、ta Sheet (MSDS). The contracting activity shall be provided an MSDS at the lime of contract award. The MSDS shall be prepared in accordance with the requirements of 29 CFR 1910.1200(g), Hazard Communication, and included with each shipment. OSHA Form 174 MSDS or a more effective contractor deve- lop
43、ed MSDS format may be used. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-82747 80 W 9999906 0532522 9 W MIL-C-82747(OS) TABLE I. Quantitative requirements for type I and type II. Characteristics Abrasion resistance (literc/mil) Adhesion, d
44、ry film Density (pounds per gallon) Drying time (air dry, 3-mil wet film, 50Yo relative humidity, 7pF) dry-to-touch, minutes set-to-touch, hours harddry, hours Film hardness, pencil Fineness of grind Flash point, OF Flexibllity I/8-lnch (3-mm) mandrel, cracks or chips Forty-five degree specular glos
45、s Impact, ln-lbs Lead, percent Leveling index Non-volatile, percent by volume Non-volatile, percent by weight Phthalic anhydride, weight percent in alkyd vehicle solids Pigment, volume percent in total non-volatile Pigment, weight percent in total non-volatile Sag resistance Index Skinning (48 hours
46、 in W4-inch container) Vehicle, total volume percent in total non-volatile Vehicle, total weight percent in total non-volatile Viscosity, Brookfield Minimum 17 4 9-10 - - - 2H 110 87 80 5 43 59 0.04 16 43 7.0 no skin 69 47 475 - - - Maximum - - 9.40 30 2 12 7 O - - - - 0.005 - 43 61 0.10 18 45 - - 7
47、7 51 525 rest Paragraph 48.2.1 .I 4.5.2.1.2 4.5.2.13 4.5.2.1.4 45.2.15 45.2.1.6 45.2.1.7 45.2.18 45.2.1.9 4.5.2.1.10 4.5.2.1 .ll 45.2.1.12 45.2.1.13 45.2.1 -13 4.5.2.1 .I4 45.2.1 .I5 45.2.1 .I5 45.2.1.16 4.5.2.1.17 4.5.2.1 .I8 45.2.1.18 4.5.2.1.19 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility f
48、or inspection. Unless otherwise specified in the contract or purchase order (see 6.2), the contractor is responsible for the performance of all inspection requirements as specified herein. Except as other- wise specified in the contract or purchase order (see 6.2), the contractor may use his own or
49、any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Govern- ment. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspection
