1、 NOT MEASUREMENT SENSITIVE MIL-A-46106B 11 December 1989 SUPERSEDING MIL-A-46106A 18 September 1970 MILITARY SPECIFICATION ADHESIVE-SEALANTS, SILICONE, RTV, ONE-COMPONENT This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This spe
2、cification covers three groups of one-part, room-temperature-vulcanizing: (RTV), silicone adhesive-sealants which cure to durable, rubber adhesive-sealants upon reaction with moisture in the air. This specification also covers primers (see 6.1.3) for use with the silicone adhesive-sealants. 1.1.1 Li
3、mitations. The silicone adhesive-sealants covered by this specification have the following limitations: a. Silicone adhesive-sealants in Groups I, II and III are not fuel-resistant. b. Adhesive-sealants in each group liberate corrosive acid during cure and shall not be used on or near avionic, elect
4、rical, electronic equipment or corrosive-sensitive metals. c. None of these adhesive-sealants are low weight loss, or low volatile condensable types. 1.2 Classification. 1.2.1 Groups of silicone adhesive-sealants. The silicone adhesive-sealants shall be classified into groups according to their inte
5、nded use and outstanding property (see 6.1 and 6.2): Group I - General purpose Group II - High strength Group III - High temperature Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Director, U.S
6、. Army Laboratory Command, Materials Technology Laboratory, ATTN: SLCMT-MEE, Watertown, MA 02172-0001 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC No. F4847 FSC 8040 DISTRIBUTION STATEMENT A Approved for public rel
7、ease; distribution unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-4bLObB 80 m 777770b Olr4b730 m MIL-A-46106B 1.2.2 Types of silicone adhesive-sealants, Each group of silicone adhesive-sealants shall be subdivided into types as foll
8、ows (see 6.1 and 6.2): Type I - Thixotropic paste Type II - Self-leveling liquid 1.2.3 Pr-imer. The primer (if required) shall be as recommended by the manufacturer of the silicone adhesive-sealant (see 6.1.3). 1.2.4 Designation. The silicone adhesive-sealants shall be designated as follows: (see 6.
9、5) Example: M46106 1 1 A B C Container size Type Identification Group Identification Specification Identification 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to t
10、he extent specified herein. Unless 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). SPECIFICATIONS FEDERAL QQ-A-250/4 - Aluminum Al
11、loy 2024, Plate and Sheet PPP-B-566 - Boxes, Folding, Paperboard PPP-B-601 - BOX, Wood, Cleated-Plywood PPP-B-636 - BOX, Shipping, Fiberboard PPP-B-676 - Boxes, Set-up PPP-C-96 - Can, Metal, 28 Gage and Lighter PPP-C-2020 - Chemicals, Liquid, Dry and Paste, Packaging of PPP-D-705 - Drum, Shipping an
12、d Storage, Steel, 16 and 30 Gallon PPP-D-729 - Drums, Shipping and Storage, Steel, 55 Gallon PPP-D-732 - Drum, Metal, 55 Gallon Reconditioned, (For Shiprnent PPP-P-704 - Pails, Metal: (Shipping, Steel 1 through 12 Gallon) PPP-T-1637 - Tubes, Shipping, Collapsible Capacity (208 Liters of Noncorrosive
13、 Materials). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-4bLObB 80 m 7777906 0146731 b m MIL-A-46106B STANDARDS FEDERAL FED-STD-313 - Material Safety Data Sheets, Preparation and the Submission of MILITARY . MIL-STD-105 - Sampling Procedu
14、res and Tables for Inspection by Attributes MIL-STD-129 - Marking for Shipment and Storage MIL-STD-130 - Identification, Marking of U.S. Military Property MIL-STD-147 - Palletized Unit Loads MIL-STD-1190 - Minimum Guidelines for Level C Preservation, Packing and Marking (Unless otherwise indicated,
15、copies of federal and military specifications, standards, and handbooks are available from the Naval Publications and Forms Center, (ATTN: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) - 2.2 Non-Government publications. The following documents form a part of this specification to the exte
16、nt specified herein. Unless otherwise specified, the issues of the documents which are DoD 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 issues of the documents cited in the solicita
17、tion (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM A366 - ASTM D149 - ASTM D150 - ASTM D257 - ASTM D412 - ASTM D573 - ASTM D624 - ASTM D746 - ASTM D903 - ASTM D1084 - ASTM D2240 - (Application Philadelphia, PA Steel, Carbon, Cold-Rolled Sheet, Commercial Quality Dielectric Breakd
18、own Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies A-C Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulating Materials D-C Resistance or Conductance of Insulating Materials Rubber Properties in Tension Rub
19、ber-Deterioration in an Air Oven Rubber Property-Tear Resistance Brittleness Temperature of Plastics and Elastomers by Impact Peel or Stripping Strength of Adhesive Bonds Viscosity of Adhesives Rubber Property-Durometer Hardness for copies should be addressed to ASTM, 1916 Race Street, 19103. ) (Non
20、government standards and 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 informational services). 3 Provided by IHSNot for ResaleNo reproduction or networking perm
21、itted without license from IHS-,-,-OFFICIAL CLASSIFICATION COMMITTEE Uniform Freight Classification Rules. (Application for copies should be addressed to the Uniform Classification Committee, 202 Union Station, 516 West Jackson Boulevard, Chicago, IL 60606). NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATIO
22、N, INC. National Motor Freight Classification . (Application for copies should be addressed to the American Trucking Association, Inc., 1616 P Street, N.W., Washington, DC 20036). 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, t
23、he text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified in the contract or purchase order, samples shall be subjected to first article ins
24、pection as specified in 4.2.1. The responsibility for the performance of the first article inspection shall be as specified by the procuring activity (see 6.2.1). 3.2 Material. 3.2.1 Silicone adhesive-sealant. The silicone adhesive-sealant shall be supplied in the Group and Type as specified (see 6.
25、2.1) and shall vulcanize at room temperature (see 4.5.2.2) to produce a rubber adhesive-sealant which meets the physical and electrical properties of this specification. 3.2.2 Primer. When required each manufacturer of silicone adhesive-sealant shall supply a suitable primer which shall be furnished
26、 with the product. The manufacturer shall certify that the primer, when used with his adhesive meets the requirements for primer within this specification, particularly the peel strength requirement in table II. 3.3 Properties. 3.3.1 Uncured silicone adhesive-sealant. The uncured silicone adhesive-s
27、ealant shall meet the requirements of table I. 3.3.1.1 Storage life. The uncured silicone adhesive-sealants and primers shall meet all the requirements of this specification after 6 months of storage for the primer and 12 months of storage for the adhesive-sealant from date of shipment. Silicone adh
28、esive-sealant that meets the requirements of extrusion rate or viscosity (as applicable) (3.3.1) , tensile strength (3.3.2.11, elongation (3.3.2.1) and peel strength (3.3.2.1) may be considered to meet the storage life requirements when tested after storage as specified in 4.2.1.4 . 4 Provided by IH
29、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-46106B TABLE I. Properties of the uncured silicone adhesive-sealants. r I L- . Properties Group I Type I Type II Total solids (percent 1 Application rate (grams/min) 92 min 92 min 100 min N/A - 1, Flow (inches)
30、 0.75 max N/A I Viscosity (poises) N/A 150- 550 Tack free time 1.0 max 1.0 max (hours) 1/ - N/A = Not appl-icable I Re( Group II Type 1 92 min 40 min 0.75 max N/A 1.0 max irements Group III Type I Type II 92 min 92 min 100 min N/A 0.75 max N/A N/A 150- 550 1.0 max 1.0. max Test laragraph 4.2.2.1 4.2
31、.2.2 4.2.2.3 4.2.2.4 4.2.2.5 3.3.2 Cured silicone adhesive-sealant. 3.3.2.1 Physical properties. The physical properties of the cured silicone adhesive-sealants shall be as specified in table II. 3.3.2.1.1 Heat resistance. The cured silicone adhesive-sealants for Group I and Group II, after exposure
32、 for 168 5 4 hours (7 days roup II 300 (250) - 1724 25 TABLE IIIb. Heat resistance - hydrolytic stability requirements. (See 3.3.2.1.1a) r Property Elongation j percent, min i Tensile strength (psi) min kPa min I Hardness 1 Shore A, min Requirements Group III Type”1 bype II 300 150 (175) 1034 1206 (
33、150) 20 N/A Application. These one-component adhesive-sealants require moisture from the air to cure. When they are used, the following are required: (1) Good ventilation during cure. (2) Full cure before enclosure (7 days minimum for thicknesses up to (3) Sufficient moisture to complete cure. (4) M
34、aximum thickness of 1/4 inch (6.0 mm). (5) Maximum glueline o 1/2 inch (12.0 mmlwhen used between (g 1 Batch number 1/4 inch) . non-porous substrates. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Shelf life expiration Mark for identification in
35、accordance with MIL-STD-130 including military part number (see 6.5) 3.4.2 Primer. a) Manufacturers primer identification. b) Instructions for storage and storage life. c) Instructions for use. d) Toxicity warning (if required) e) NOTE: THIS PRIMER IS INTENDED FOR USE WITH MANUFACTURERS ADHESIVE-SEA
36、LANT DESIGNATION ONLY. 3.4.3. Additional marking. Each unit container of primer shall be marked as follows: “CAUTION: APPLY ONLY IN A WELL VENTILATED AREA, KEEP AWAY FROM HEAT, SPARKS AND OPEN FLAME“. 3.5 Toxicity. The silicone adhesive-sealant and primer shall have no adverse effect on the health o
37、f personnel when used for its intended purpose. Questions pertinent to this effect shall be referred by the contracting activity to the appropriate departmental medical service who will act as advisor to the contracting agency, A material safety data sheet will be submitted in accordance with proced
38、ures outlined in FED-STD-313. 3.6 Workmanship. The uncured silicone adhesive-sealant furnished under this specification shall be uniform in quality and consistency and shall be free of aggIomerates or foreign particles. The cured adhesive-sealant shall present an appearance of smooth homogeneity. Th
39、ere shall be no other defect present which might render the end product unsuitable for its intended purpose. The primer shall be homogeneous with clear, non-cloudy appearance and contain no foreign matter. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified
40、in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) 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 p
41、erformance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requ
42、irements. 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5, The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specificatio
43、n shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
44、 IHS-,-,-MIL-A-46LObB 80 7777706 0146737 7 MIL-A-46106B as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to a
45、ccept defective material. 4.2. Classification of tests. Tests for the silicone adhesive-sealants shall be classified as follows: a. First article tests (see 4.2.1) b. Lot acceptance tests (4.2.2) 4.2.1 First article tests. First article tests shall be conducted on the first article sample (see 3.1 a
46、nd 6.2.1.d) at the discretion of the procuring activity (see 6.2). If a lot should fail a first article test, no further lot will be accepted until the supplier has presented sufficient evidence to show that the condition which caused the failure has been corrected. The first article tests shall con
47、sist of all tests of this specification, namely, the tests specified in tables IV and V. 4.2.1.1 Brittle temperature. Samples of uncured silicone adhesive-sealant shall be prepared as specified in 4.5.1. The silicone adhesive-sealant shall be allowed to cure for a minimum of 72 2 4 hours (3 daYs + 4
48、 hours) at 74O + 4.50F (23.30 t 2.5OC) and 50 2 5 percent relative humidity. Modified T-50 specTmens shall be die punched from the pads. Tests shall be in accordance with procedure B of ASTM Method D746. The brittle point should be that temperature stated in table II or below. 4.2.1.2 Resistance to
49、heat. Specimens of the silicone adhesive-sealants prepared as specified in 4.5.1 and cured as specified in 4.5.2.2 shall be oven aged as specified in ASTM D573 for the duration and temperature as specified in 3.3.2.1.1. At the end of the exposure time the test specimens shall be brought to and tested at 74 + 4.5OF (23.30 + 2.5OC) and 50 2 5 percent relative humidity for-compliance witE the requirements of 3.3.2.1.1 TABLE IV. Additional tests for comp
