1、1 - . _ Beneficial comments (recommendations, additions, deletions) and any pertinent Naval Air Engineering Center, Lakehurst, NJ 08733-5100, by using the self-addressed Standardi zatioti Document Iinprovement Proposal (DD Forni 1426) appearing at the end of this document or by lette.r-, data which
2、may be of use in iinproving this docuiiient should be addressed to: Systems Engineering and Standardization Departinent (Code 531, I ? I NOT MEASUREMENT SENSTTIVE I MIL-C-81945B(AS 10 March 1989 MI L-C-81945A(AS ) 2 June 1980 - -. _ _ - _ . SUPERS ED I NG MILITARY SPECIFICATION COATING COMPOUNDS, WE
3、APON INSULATION, INTUMESCENT This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is availAble for use by all Departments and Agencies of the Departinent of Defense. 1. SCOPE 1.1 Scope. This specification covers intumescent coatings for the exterior su
4、rfaces of aircraft ordnance to provide protection froin high-flux thermal environments. The composition of this mixture shall not contain any carcinogenic properties capable of contaminating the environment or endangering huinan heal th. 1.2 Classification. Coating compounds shall be of the followin
5、g types as specified herein: Type I - Coating for spray appl ication Type II - Coating for hand trowelled application and u manufacture of intumescent sheet materials Type III - Intumescent sheet materials The coating compounds may be provided as multi-component systems (res curing agent), or as sin
6、gle component systems. The intiiinesceiit sheet materials are provided as solid sheets for gluing to the object to be protected. 2. APPLICABLE DOCUMENTS e in the n and 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications arid standards form a part of this docume
7、nt to the extent specified herein. otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Unless Licensed by Information Handling Service
8、sSPECIFICATIONS FEDERAL L-P- 1 040 Plastic Sheets and Strips (Polyvinyl Fluoride) QQ-A- 2 50 / 5 Aluminum Alloy Alclad 2024, Plate and Sheet QQ-A-250/11 Aluminum Alloy 6061, Plate and Sheet PPP-D-711 PPP-D-729 PPP-P-704 MILITARY MIL-C-5541 MI L-T-5624 MI L-A-8625 MIL-P-23377 MIL-L-23699 MI L-C-8 1 7
9、06 MIL-C-83286 MI L-C-85285 STANDARDS FEDERAL FED-STD-141 FED-STD-313 FED-STD-406 - -_ Drum: Metal, Shipping, Steel, Lightweight. (55 Gallon) Drums, Shipping and Storage, Steel, 55 Gallon (208 Liters) Pails, Metal: (Shipping, Steel, 1 Through 12 Gallons) Chemical Conversion Coatings on Aluminum and
10、Aluminum Alloys Turbine Fuel, Aviation, Grades JP-4 and JP-5 Anodic Coatings, for Aluminum and Aluminum Alloys Primer Coatings: Epoxy-Polyamide, Chemical and Solvent Resistant Lubricating Oil, Aircraft Turbine Engines, Synthetic Base Chemical Conversion Materials for Coating Aluminum and Aluminum Al
11、loys Coating, Urethane, Aliphatic Isocyanate, for Aerospace Appl i cations Coating, Polyurethane, High-Solids Paint, Varnish, Lacquer and Related Materials; Methods of Inspection, Sampling and Testing Material Safety Data Sheets; Preparation and Submission of Plastics: Methods of Testing 2 I License
12、d by Information Handling ServicesNIL-C-L7LiSB 80 m 7779706 OLL0760 7 m MIL-C-81945B(AS) STANDARDS (Continued) MILITARY MIL-STD-105 Sampling Procedures and Tables for Inspection by Attributes MIL-STD-129 Marking for Shipment and Storage MI L-STD-147 Palletized Unit Loads MI L-STD-8 1 O MI L-STD-1648
13、 MIL-STD-2098 Environmental Test Methods and Engineering Gui del i nes Criteria and Test Procedures for Ordnance Exposed to an Aircraft Fuel Fire Ordnance Preparation and Application of Intumescent Sheet, Type III (Unless otherwise indicated, copies of federal and military specifications and standar
14、ds are availble from the Naval Publications and Forms Center (Attn: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) 2.1.2 Other Government documents and publications. The following other Government documents and publications form a part of this document to the extent specified herein. Unles
15、s otherwise specified, the issues are those cited in the solicitation. CODE OF FEDERAL REGULATIONS 29 CFR 1910.1200 Material Safety Data Sheet; Preparation and Submission of 49 CFR 171-178 Regulations for the Transportation of Hazardous Mater i al s (Application for copies of the Code of Federal Reg
16、ulations (CFR) should be addressed to the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.) DEPARTMENT OF THE NAVY WR-50 Warhead Safety Tests, Minimum for Air, Surface and Underwater Launched Weapons 2.2 Non-Government publications. The following documents form a p
17、art of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOO adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issue of the
18、documents cited in the solicitation (see 6.2). Licensed by Information Handling ServicesMIL-C-BLq5B 80 m 9Ob OLL07bL 0 MIL-C-81945B(AS) AMERICAN NATIONAL STANDARDS INSTITUTE . ANSI Z 129.1 (Application for copies should be addressed to the American National Standards Institute, Inc., 1430 Broadway,
19、New York, NY 10018.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) Precautionary Labeling of Hazardous Industrial Chemicals ASTM D 638 Tensile Properties of Plastics ASTM D 1014 ASTM D 1475 ASTM D 1748 ASTM D 21 96 ASTM D 2794 Conducting Exterior Exposure Tests of Paints on Steel Density of Pain
20、t, Varnish, Lacquer, and Related Products Rust Protection by Metal Preservatives in the k Humidity Cabinet Viscosity Measurements and Rheological Properties of Non-Newtonian Materials by Rotational (Brookfield) Viscometer Resistance of Organic Coatings on the Effects of Rapid Deformation (Impact) (A
21、pplication for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC., AGENT National Motor Freight Classification (Application for copies should be addressed to the National Motor Frei
22、ght Traffic, Tariff Order Section, 1616 P Street, N.W., Washington, DC 20036.) UNIFORM CLASSIFICATION COMMITTEE, AGENT Uniform Freight Classif i cation Ru1 es (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.
23、1 (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event of a conflict between the t
24、ext 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 obtained, Licensed by Information Handling ServicesNIL-C-Lqi5B 80 W 9999906 OLL0762 2 M
25、IL-C-81945B(AS) I I i I i i I I I I I I i i I, 3. REQUIREMENTS 3.1 Qualification. The coating compounds furnished under this specification shall be products which are authorized by the qualifying activ.ity for listing on the applicable qualified products list at the time set for opening of bids (see
26、 4.4 and 6.3). Any change in the formulation of a qualified product will necessitate its requalification. The material supplied under contract shall be identical, within manufacturing tolerances, to the product receiving qualification. 0 3.2 Materials. Materials specified herein shall be of such a q
27、uality as to produce products conforming to the requirements of this specification. 3.3 Toxicity. The manufacturer shall certify that the coating compounds contain no substance known to be toxic to the user under normal conditions of usage. Questions pertinent to the effect of these primer coatings
28、on the health of personnel when used for its intended purpose shall be referred by the acquiring activity to the appropriate medical service who will act as adviser to the acquiring activity (see 4.4.2 and 6.2(i). Material Safety Data Sheets shall be prepared and submitted in accordance with FED-STD
29、-313 and shall meet the requirements of 29 CFR 1910.1200. One copy shall accompany the samples being submitted to the qualifying activity for testing (see 4.4.2). 5 3.4 Performance characteristics. 3.4.1 Application. When used according to the manufacturers directions, the coating compounds shall be
30、 usable by the intended application method. 3.4.1.1 Application, Type I. The coating shall be sprayable and yield a minimum dry film thickness per coat of 0.030 inch (0.75 millimeters (mm) on a vertical surface. The coating shall show no streaking, sagging, cracking, or pronounced orange-peel (see 4
31、.7.7.1). The admixed coating shall not gel within 45 minutes. 3.4.1.2 Application, Type II. Type II material shall be easily worked with a putty knife and must be compatible with the manufacturing process used in the preparation of Type III sheet material. Type II materials are used in repairing Typ
32、e I and III materials. The admixed coating shall not gel within 30 minutes. 3.4.1.3 Application, Type III. Type III materials shall be capable of being bonded to the curved surface of ordnance items. 3.4.2 Thermal efficiency. The thermal efficiency of the coating compound shall not be less than 2.0
33、seconds per 0.001 inch (25.4 micrometer (m) to reach a backface temperature of 260C (500F) (see 4.7.8) before and after being subjected to the humidity test of 4.7.14. 3.4.3 Adhesion. Panels coated and tested as specified in 4.7.11, when bent around a mandrel 1 2 0.003 inch (25.4 1: 0.08 mm) in diam
34、eter, shall not exhibit adhesive failure from the epoxy primer or polyurethane topcoat-. Cracking of the coating is acceptable and shall not be cause for rejection. Licensed by Information Handling ServicesMIL-C-L745B 0 7777706 OLL0763 4 W MIL-C-81945B(AS) 3.4.4 Impact resistance. The cured coating
35、system (see 4.6) impact resistance when tested as specified in 4.7.13.2 shall not be less than 20 inch-pounds on direct (coated surface) impact. 3.5 Environmental requirements. 3.5.1 Storage stability. After storage in closed containers for six months from the date of manufacture, Type I, II and Typ
36、e III coatings shall conform to the original chemical and physical properties (see 3.6). In addition, Type III coatings shall meet the requirements of 3.4.2, 3.8.1 and 3.8.2 for a period of at least five years. 3.5.2 Lubricating oil resistance. The cured coating compound shall withstand immersion in
37、 oil for a period of 4 hours at a temperature of 60“ 5 2C (140“ 2 4F). blistering, softening or other defects (see 4.7.12). Discoloration shall not be a cause for rejection. Four hours after removal, the coating shall show no 3.5.3 Humidity resistance. The cured coating system (see 4.6) after testin
38、g as specified in 4.7.14, shall have a minimum Shore D hardness of 55 upon removal of the panels from the cabinet (see 4.7.10.2). 3.5.4 Thermal shock resistance. There shall be no eviden.ce of cracking, loss of adhesion, or film deterioration of the coating system (see 4.6) when tested as specified
39、in 4.7.15. 3.5.5 Weather resistance. There shall be no evidence of cracking or coating deterioration after one year exposure as specified in 4.7.16. 3.6 Chemical and physical properties. 3.6.1 Condition in container. 3.6.1.1 Type I and Type II. Components shall mix easily to a smooth homogeneous con
40、dition. There shall be no trace of grit, seeds, skins, or lumps and no evidence of hard or objectionable settling which cannot be readily dispersed. be retained on United States Standard Sieve (USSS) No. 40 (see 4.7.4). No more than 0.1 percent by weight of each component shall 3.6.1.2 Type III coat
41、ings. The intumescent sheets shall bend to conform to the curvature of the ordnance items they are to be applied to and shall have no curling, shrinkage, discoloration,- lumps, or voids that would interfere with their application or effectiveness (see 4.7.6). surface of the Type III coating shall be
42、 covered with .O02 inch thickness of plastic, L-P-1040, Type II, Grade B, Class I. The outside 3.6.2 Hardness. Panels prepared as specified in 4.7.8.1 shall be cured at 23“ 2 3C (73“ 2 5F) and the coating shall conform to the following hardness requirements: Time/Hours Minimum Shore A Hardness 24 48
43、 80 90 6 f- - I I I I O I I I I I I I I ! I Licensed by Information Handling ServicesI I I I I I I 1 I I t I I I I I I I I i I I I I c I I I ! i r - Requirements Characteristics Test Minimum Max i mum Paragraph Viscosity, Centipoi ses 13,000 1 00,000 4.7.1 Density, Pounds per Gallon 11 .o . 11.6 4.7
44、.2 Nonvolatile Content, Percent by Weight 80.0 91 .o 4.7.3 MIL-C-82945B BO 7777906 01107611 6 = MIL-C-81945B(AS) f 3.6.3 Tensile properties. The minimum tensile properties of the coating compound when tested as specified in 4.7.9 shall be as follows: Characteristics Viscosity, Centipoi ses Density,
45、Pounds per Gallon Nonvolatile Content, Percent by Weight Temperature Ultimate Strength Elongation at Break (OC (psi) (percent 1 Requirements Test Mi ni mum Maxi mum Paragraph 13,000 60,000 4.7.1 11.0 11.6 4.7.2 85.0 95.0 4.7.3 -40 2550. O 23 450. O 60 70.0 1.7 3.2 7.0 3.6.4 Type III dimensional prop
46、erties. Size shall be contract or purchase order (see 6.2.l(e. S cifi d in 3.6.5 Color. The components shall be supplied in the manufactured color. When admixed in the ratio specified by the manufacturer, the resultant color of the coating shall range from white to amber. 3.7 Component requirements.
47、 The coating compound furnished under this specification consists of two separately packaged components. Component I shall consist of an epoxy modifier and curing agent, with thermally activated fillers, diluent and a thixotrope. Component II shall consist of an epoxy resin with active fillers, thix
48、otrope and diluent. Component A of Type I shall conform to the requirements specified in 3.6, 3.7 and Table I. Component B of Type I shall conform to the requirements specified in 3.6, 3.7 and Table II. TABLE II. Component B requirements (Type I only). 7 . . Licensed by Information Handling Services
49、MIL-C-17qSB 0 W 7779706 0330765 3.8 Full-scale testing. 3.8.1 Coated ordnance environmental performance. The coating system aDDlied to ordnance items (see 4.6.7) shall Dass the temDerature and humiditv cycl ing, transportation vi bration and abrasion, and aircraft vi bration environmental tests specified in 4.7.17 without evidence of loss of adhesion, blistering, flaking, or cracking to the substrate. “ 3.8.2 Fast cook-off. The ordnance specimen coated as specified in 4.6.7 shall meet the requirements of the fast cook-off test specified in MIL-STD-1648 (se
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