1、MIL-R-23LIbLA 73 9999906 OLL3Lb 8 H -59 -07 MIL-R-23461A(SH) 26 June 1987 SUPERSEDING MIL-R-23461(SHIPS) 28 November 1962 (See 6.7) MILITARY SPEC IF1 CAT ION RESIN COMPOUND, THERMOSETTING, ROOM TEMPERATURE CURING, FOR METAL COATING This specification is approved for use within the Naval Sea Systems
2、Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for unpigmented, thermosetting, room temperature curing resin with associate curing agents to be used for convolutely
3、, or spirally wound fibrous glass reinforced coatings on steel, aluminum and gun metal for corrosion protection. 1.2 Classification. The resin shall be furnished in the following types, as specified (see 6.2.1). 2. 2. Type I Type II - Resin for coating aluminum. Type III - Resin for coating gun meta
4、l. - Resin for coating steel. APPL. ICABLE DOCUMENTS 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 documents shall be those listed
5、in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Comman
6、der, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document i or by letter. AMsC N/A FSC 9330 DISTRIBUTION STATEMENT A Approved for public re
7、lease; distribution unlimited THIS DOCUMENT CONTAINS 32 -PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIFICATIONS FEDERAL QQ-A-250/9 - Aluminum Alloy 5456, Plate and Sheet. QQ-C-390 - Copper Alloy Castings (Including Cast Bar). PPP-B-585
8、 - Boxes, Wood, Wirebound. PPP-B-591 - Boxes, Shipping, Fiberboard, Wood-Cleated. PPP-B-601 - Boxes, Wood, Cleated-Plywood, PPP-B-621 - Boxes, Wood, Nailed and Lock-Corner. PPP-B-636 - Boxes, Shipping, Fiberboard. PPP-B-640 - Boxes, Fiberboard, Corrugated, Triple-Wall. PPP-B-676 - Boxes Setup. PPP-C
9、-96 - Cans, Metal, 28 Gage and Lighter. PPP-C-186 - Containers, Packaging and Packing for Drugs, Chemicals, and Pharmaceuticals. PPP-P-1892 - Paint, Varnish, L.acquer, and Related Materials; Packaging, Packing, and Marking of. MIL-L-10547 - Liners, Case, and Sheet, Overwrap; Water-Vaporproof MIL-S-1
10、7726 - Sand, Sandblast. MIL-S-22698 - Steel Plate and Shapes, Weldable Ordinary Strength MILITARY or Waterproof, Flexible. and High Strength: Hull Structure. STANDARDS FEDERAL FED-STD-313 - Material Safety Data Sheets Preparation and the Submission of. MIL ITAKY MIL.-STD-105 - Sampling Procedures an
11、d Table for Inspection By MIL-STD-129 - Marking for Shipment and Storage. Attributes. 2.1.2 Government publication. The following Government publication forms a part of this specification to the extent epeciiPd herein. Unless otherwise specified, the issue shall be that in effect on the date of the
12、solicitation. DEPARTMENT OF TRANSPORTATION (DOT) Code of Federal Regulations (CFR) 49 CFR 71-78 - Interstate Commerce Commission Rules and Regulations for Transportation of Explo- sives and Other Dangerous Articles. (Application for copies should be addressed to the Superintendent of Documents, Gove
13、rnment Printing Office, Washington, DC 20402.) (Copies of specifications, standards, and publications required by contractors in connection with specific acquisition functions should be obtained rom the contracting activity ok as directed by the contracting activity.) Provided by IHSNot for ResaleNo
14、 reproduction or networking permitted without license from IHS-,-,-MIL-R-234bLA 93 7777706 OLL83L L 9 MIL-R-23461A(SH) o - I a o 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents w
15、hich are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS shall be the issue of the nongovernment documents which is current on the date of the solicitation, AMERICAN SOCIETY FOR T
16、ESTING AND MATERIALS (ASTM) D 1639 - Standard Test Method for Acid Value of Organic Coating D 1652 - Standard Test Method for Epoxy Content of Epoxy Resins. D 1963 - Standard Test Method for Specific Gravity of Drying Materials. (DoD adopted) (DoD adopted) Oils, Varnishes, Resins, and Related Materi
17、als at 25/25 OC D 2583 - Standard Test Method for Indentation Hardness of Rigid G 62 - Standard Test Methods for Holiday Detection in Pipeline Plastics by Means of a Barco1 Impressor. Coatings. (DoD adopted) (Application for copies should be addressed to the American Society for Testing and Material
18、s, 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 Freight Traffic Association, Inc., ATA TRAFFIC Dept., 2200 Mill Road, Alexandria, VA 22314.) S
19、OCIETY OF AUTOMOTIVE ENGINEERS (SAE) AMs 3824 - Cloth, Type “E“ Glass, Finished for Resin Laminates (Application for copies should be addressed to the Society of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 15096.) UNIFORM CLASSIFICATION COMMITTEE AGENT Uniform Freight Classifi
20、cation Ratings, Rules and Regulations (Application for copies should be addressed to the Uniform classification Committee Agent, Tariff Publication Officer, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) (Nongovernment standards and other publications are normally available from the organ
21、izations which prepare or which 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 text of this specification and the references cited herein (except for associated
22、detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3 . Provided by IHSNot for ResaleNo reproduction
23、or networking permitted without license from IHS-,-,-3. REQUIREMENTS I 3.1 First article. When specified in the contract or purchase order, a sample shall be subjeczed to first article inspection (see 4.3 and 6.4). 3.2 Materials, The materials used in the manufacture of the resin and curing agents s
24、hall be entirely suitable for the purpose intended. shall be of the epoxy or polyester (including vinyl-ester) thermosetting, room temperature curing type. by air. applicable metal, The resin Curing of the finished surface shall be uninhibited The component materials of the resin shall be not corros
25、ive to the 3.2.1 Toxicity. The material shall have no adverse effect on the health of personnel when used or its intended purpose (see 4.8). pertinent to this effect shall be referred by the contracting activity to the appropriate departmental medical service who will act as an advisor to the contra
26、cting activity. Questions 3.2.2 Form, The resin shall be in a form suitable for impregnating glass cloth reinforcement and shall be free from foreign matter. Unless otherwise apecified (see 6.2.1), materials supplied shall constitute a resin system which include8 the resin and the specific curing ag
27、ent or agents or fillers required to meet the requirements stated herein. the curing agents shall be packaged in unit quantities as required to react with unit quantities of resin as ordered. Unless otherwise specified (see 6.2.1), 3.2.3 Chemical-type. The manufacturer shall designate the general ch
28、emical type of resin (polyester, vinyl-ester or epoxy) on the instruction sheet specified in 3.8 and on the resin container. 3.3 Code number. The manufacturer shall designate each resin system by a code number which shall be used to identify the resin and curing agents as a - system, The manufacture
29、rs code number shall appear on the instruction sheet and on the label of the resin container. Any changes in the components or manufacturing procedures shall necessitate resubmission for inspection and a new code number shall be assigned. The code number may include trade name if desired. 3.4 Specif
30、ic gravity, acid number (polyesters), and epoxide equivalent (epoxies). The specific gravity, acid number (of polyester resins), and epoxide equivalent (of epoxy resins) of the liquid uncatalyzed resin shall be determined in the tests of 4.3. The manufacturer shall provide limiting manufacturing tol
31、erance values within which these properties can be controlled (see 4.3). These. values shall be considered requirements of this specification for quality conformance inspection (see 4.4.2). 3.5 Resin system properties, The resin with its specific curing system shall conform to the property values sp
32、ecified in 3.5.1, 3.5.2 and 3.5.3. Properties apply to resin types I, II and III. The resin system shall be capable of curing, with a tack-free surface, within 24 hours at room temperature. 3,S.l Drainage or minimum viscoclty. A 0.030 inch film of catalyzed resin a when applied and tested as specifi
33、ed in 4.6.1.1 shall take no less than 5 minutes 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a - 1 a a Gel time MIL-R-23461A 73 = 7977706 OLL8320 T = MIL.-R-23461A( SH) Temperature 73 P 2F 90 P 2F 30 minutes, minimum 18 minutes, minimum 6 hours,
34、 maximum to drain a distance of 1 inch. problem (see 6.2.1), such as covering items that can be rotated, the drainage requirement may be replaced by a minimum viscosity value of 1500 centipoise at 72 degrees Fahrenheit (OF). 3.5.2 Viscosity. specified in 4.6.1.2 shall be no greater than 25,000 centi
35、poises at 50F. For applications where drainage is not a The viscosity of the catalyzed resin when measured as 3.5.3 Gel time. The gel time of the catalyzed resin shall be as specified in table I when measured as.specified in 4.6.1.3. Resin type Me tal- I Steel II Aluminum III Gun metal TABLE I. Gel
36、time requirements. Impact strength, ft-lb (minimum) at standard conditions - 2/ 0.3 2.0 10.0 3.6.1 Impact strength. The impact strength of glass reinforced resin coatings on steel, aluminum and gun metal shall be as specified in table II when applied and tested as specified in 4.6.2.1. Metal 2cyEe S
37、pecifications Steel Type II MIL.-S- 2 2 6 9 8 Gun metal QQ-C-3 90 Aluminum Temper H321 QQ-A-250/9 2/ See 4.5.1. - 3.6.2 Peel strength. The peel strength of glass reinforced resin coatings on metal substrates shall be as shown in table III when applied and tested as specified in 4.6.2.2. Provided by
38、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-R-2346LA 73 997990b OLL8321 I 9 MIL-R-23461A(SH) Minimum value , (pounds) after 14 days immersion in salt water - 21 14 14 14 TABL.E III. Peel strength requirements. Maximum allowable percent decrease after im
39、mersion from value obtained after 48 hour cure at standard conditions 31 30 percent 30 percent 30 Dercent: Resin type I II LIZ i/ Metal- Steel Aluminum Gun metal i/ - i/ See 3.6.1, Note - - Dry value - Wet value - 21 See 4.5.2 31 Percent decrease = - Dry value 3,6,2.1 Porosity. When tested as specif
40、ied in 4.6.2.1.3, no pinholes shall be detected 011 tho 1-1/2 by 1 inch test area of peel strength specimens (prepared as specified in 4.6,2.2) before and after immersion in salt water. 3,6,2,2 Corrosion. There shall be no evidence of corrosion as determined iii 4.7 on the 1-1/2 by 3-1/2 inch bond t
41、est area of steel, aluminum and gun metal specimens after the 14 day immersion period in salt water. 3.6.2.3 Barcol hardness. When tested as specified in 4.6.2.1.5, the average Barcol hardness shall not differ from the manufacturers recommended value by more than 10 percent greater or 5 percent less
42、. exceeded, the manufacturer shall provide data to resolve the issue and to demonstrate that his recommended hardness is accurate and adequate, If these limits are 3.7 Storage life, - The storage life at standard conditions (see 4.5.1) of the, uncatalyzed resin and related catalyst or hardener shall
43、 be at least 6 months. After storage in commercial containers other than glass, for this period, the resin system, when catalyzed, shall meet all of the requirements of this specification, 3.8 instruction sheet. The manufacturer shall provide an instruction sheet for each resin and curing agent syst
44、em. contain the following information: The instruction sheet shall (a) Chemical type of resin, type number (I, II or III), and manufac- (b) turers code number (see 3,2,2). Maximum usable storage life of the resin (uncatalyzed), and gel time or pot life of the catalyzed resin at various tempera- ture
45、s, required percentage and type of curing agent or agents, and minimum and maximum percent of curing agents allowed. (c) (d) Curing characteristics of the system, including minimum curing Recommended mixing and reinforcement impregnating procedures. temperature, curing times at minimum temperature a
46、nd at elevated ambient temperature (90 to 100F) and Barcol hardness of the adequately cured system. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-234blA 73 = 7777706 0338322 3 MIL-R-2346 1A (SHI 1 e a (e) Any other pertinent information on st
47、orage and handling of the resin, cautions on toxicity and precautions to be taken in handling the resin and curing agents. system. (f) The instruction sheet shall pertain only to a single resin 3.9 Material safety data sheet. The contracting activity shall be provided a material safety data sheet (M
48、SDS) at the time of contract award. The MSDS is form OSHA-20 and found as part of FED-STD-313. The MSDS shall be included with each shipment of the material covered by this specification. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or
49、 purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection require- ments specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the spec
