1、COMPOUND, CORROSION PREVENTIVESoft Film, Thixotropic, Cold Application-AMS 3077Issued 10-1-88AEROSPACEMATERIALSPECIFICATIONSAESAEThe Engineering SocietyFor Advancing MobilityLand Sea Air and Space400 COMMONWEAL DRIVE, WARRENDALE, PA 15096Submitted for recognition as an American National Standard1. S
2、COPE:1.1 Form: This specification covers a ready-mixed thixotropic compound in theform of a stable film-forming compound suitable for application by brushingor spraying.1.2 Application: To provide long-term protection of aircraft structures.1.3 Classification: Compound covered by this specification
3、is classified asfollows:Class I UndyedClass II Dyed1.3.1 Unless a specific class is specified, either Class I or Class II may besupplied.1.4 Safety-Hazardous Materials: While the materials, methods, applications, andprocesses described or referenced in this specification may involve the useof hazard
4、ous materials, this specification does not address the hazardswhich may be involved in such use. It is the sole responsibility of theuser to ensure familiarity with the safe and proper use of any hazardousmaterials and to take necessary precautionary measures to ensure the healthand safety of all pe
5、rsonnel involved.2. APPLICABLE DOCUMENTS: The following publications form a part of thisspecification to the extent specified herein. The latest issue of AerospaceMaterial Specifications and Aerospace Recommended Practices shall apply. Theapplicable issue of other documents shall be as specified in
6、AMS 2350.SAE Technical Board Rules provide that “This report is published by SAE to advance the state of technical and engineering sciences.The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringementarising therefrom,
7、is the sole responsibility of the user.“Copyright 1988 Society of Automotive Engineers, Inc. Printed in U.S.A.All rights reserved.AMS documents are protected under United States and international copyright laws. Reproduction of these documents by anymeans is strictly prohibited without the written c
8、onsent of the publisher.SAEAMS 3077 Page 22.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale,PA 15096.2.1.1 Aerospace Material Specification:AMS 1425 - Deicing/Anti-Icing Fluid, Aircraft, Ethylene-Glycol BaseAMS 1526 - Cleaner for Aircraft Exterior Surfaces, Water-Miscible,
9、 PressureSpraying TypeAMS 2350 - Standards and Test MethodsAMS 2473 - Chemical Treatment for Aluminum Alloys, General Purpose CoatingAMS 2475 - Protective Treatments, Magnesium AlloysAMS 2820 - Aerosol PackagingAMS 2825 - Material Safety Data SheetsAMS 3808 - Tape, Adhesive, Pressure-Sensitive Maski
10、ngAMS 4037 - Aluminum Alloy Sheet and Plate, 4.4Cu - 1.5Mg - 0.60Mn(2024; -T3 Flat Sheet, -T351 Plate), Solution Heat TreatedAMS 4041 - Aluminum Alloy Sheet and Plate, Alclad, 4.4Cu - 1.5Mg - 0.60Mn(Alclad 2024 and 1-1/2% Alclad 2024-T3 Flat Sheet; 1-1/2%Alclad 2024-T351 Plate)AMS 4045 - Aluminum Al
11、loy Sheet and Plate, 5.6Zn - 2.5Mg - l.6Cu - 0.23Cr(7075; -T6 Sheet, T651 Plate), Solution and PrecipitationHeat TreatedAMS 4049 - Aluminum Alloy Sheet and Plate, Alclad, 5.6Zn - 2.5Mg -1.6Cu - 0.23Cr (Alclad 7075; -T6 Sheet, -T651 Plate),Solution and Precipitation Heat TreatedAMS 4165 - Aluminum Al
12、loy Extrusions, 4.4Cu - 1.5Mg - 0.60Mn(2024-T3511), Stress-Relief Stretched and StraightenedAMS 4376 - Magnesium Alloy Plate, 3.OA1 - l.OZn (AZ31B-H26), Cold Rolledand Partially AnnealedAMS 5040 - Steel Sheet and Strip, 0.15 max Carbon, Deep Forming Grade2.1.2 Aerospace Recommended Practices:ARP1511
13、 - Corrosion of Low-Embrittling Cadmium Plate by AircraftMaintenance Chemicals2.2 ASTM Publications: Available from American Society for Testing andMaterials, 1916 Race Street, Philadelphia, PA 19103.ASTM B117 - Salt Spray (Fog) TestingASTM D56 - Flash Point by Tag Closed TesterASTM D1193 - Reagent
14、WaterASTM D1568 - Sampling and Chemical Analysis of Alkylbenzene SulfonatesASTM D2196 - Viscosity Measurements and Rheological Properties ofNon-Newtonian Materials by Rotational (Brookfield) ViscometerASTM F483 - Total Immersion Corrosion Test for Aircraft MaintenanceChemicalsASTM F484 - Stress Craz
15、ing of Acrylic Plastics in Contact with Liquid orSemi-Liquid CompoundsASTM F502 - Effects of Cleaning and Chemical Maintenance Materials onPainted Aircraft SurfacesASTM F519 - Mechanical Hydrogen Embrittlement Testing of Plating Processesand Aircraft Maintenance ChemicalsASTM G34 - Exfoliation Corro
16、sion Susceptibility in 2XXX and 7XXX SeriesAluminum Alloys (EXCO Test)SAEAMS 3077Page 32.3.U.S. Government Publications: Available from Commanding Officer, NavalPublications and Forms Center, 5801 Tabor Avenue, Philadelphia, PA 19120.2.3.1 Federal Specifications:O-A-76 - Acetic Acid, Glacial, Techni
17、calO-H-765 - Hydrochloric Acid, TechnicalO-N-350 - Nitric Acid, Technical0-S-598 - Sodium Hydroxide, TechnicalO-T-620 - 1,1,1-Trichloroethane, TechnicalP-D-680 - Dry Cleaning SolventTT-N-95 - Naphtha, AliphaticTT-T-291 - Thinner, Paint, Mineral Spirits, Regular and Odorless2.3.2 Military Specificati
18、ons:MIL-C-16173 - Corrosion Preventive Compound, Solvent Cutback,Cold ApplicationMIL-P-23377 - Primer Coating, Epoxy Polyamide, Chemical and SolventResistantMIL-P-25690 - Plastic Sheet and Parts, Modified Acrylic Base, Monolithic,Crack Propagation Resistant2.3.3 Military Standards:MIL-STD-290 - Pack
19、ing of Petroleum and Related Products2.3.4 USAF ANA Standards:AN 310 - Nut, Plain, Castellated, AirframeAN 960 - Washer, Flat2.4 National Aerospace Standards: Available from National StandardsAssociation, Inc., 1321 Fourteenth Street, N.W., Washington, DC 20005.NAS 1304 - Bolt, Shear, Hexagon HeadNA
20、S 6304 - Bolt, Hex Head, Close Tolerance, A286, Short Thread, SelfLocking and Non-LockingNAS 6404 - Bolt, Hex Head, Close Tolerance, 6Al-4V, Titanium Alloy, ShortThread, Self Locking and Non-Locking2.5 ANSI Publications: Available from American National Standards Institute,Inc., 1430 Broadway, New Y
21、ork, NY 10018.ANSI B46.1 - Surface Texture3. TECHNICAL REQUIREMENTS:3.1 Material: The composition of the compound shall be optional with themanufacturer but should contain film-forming compounds, corrosioninhibitors, and petroleum solvents. However, the compound shall contain notmore than 1.5% aroma
22、tics and no chlorinated hydrocarbons.SAEAMS 3077 Page 43.2 Properties: The compound shall conform to the following requirements; testsshall be performed in accordance with specified test methods on the productsupplied in concentrated form:3.2.1 Flash Point: Shall be not lower than 43C (109F), determ
23、ined inaccordance with ASTM D56.3.2.2 Sprayability: The compound shall be sprayable, tested in accordance withMIL-C-16173 except that the compound shall be held at 15C 3 (59F 5)and that the sprayed panel shall be dried at the same temperature.3.2.3 Viscosity: The compound shall exhibit a non-Newtoni
24、an flow behavior andshall evince no sags, when tested in accordance with 4.5.7.3.2.4 Storage Stability: The compound shall meet all requirements of thisspecification at any time within one year from date of receipt bypurchaser when stored in closed containers between +40 and 20C (+104and 4F).3.2.5 T
25、ransparency: When Type I compound is applied by a wet film applicator ata thickness of 25 m 5 (0.001 inch 0.0002) (dry) and dried for24 hours 1 on a sheet of glass and the glass placed directly on thisspecification text, the text shall be legible.3.2.6 Removability: The compound, applied in accordan
26、ce with 4.5.1, shall beremovable at room temperature by light rubbing with TT-N-95 naphtha,P-D-680 solvent, or TT-T-291 mineral spirits after the test panel has beenexposed to 80C 5 (176F 9) for 24 hours 1.3.2.7 Corrosion of Metal Surfaces:3.2.7.1 Total Immersion Corrosion: The fluid shall neither s
27、how evidence ofcorrosion nor cause a weight change of any test panel greater than0.1 mg/cm2per 24 hours, determined in accordance with ASTM F483.Discoloration is not acceptable.Test PanelsAMS 4041 Aluminum AlloyAMS 4049 Aluminum AlloyAMS 4376 Magnesium Alloy, discromate treated according to AMS 2475
28、AMS 5040 Carbon Steel3.2.7.2 Low-Embrittling Cadmium Plate: Test panels, coated with low-embrittlingcadmium plate, shall not show a weight change greater than 0.1 mg/cm2per 24 hours, determined in accordance with ARP1511.3.2.8 Hydrogen Embrittlement: The compound shall be non-embrittling, determined
29、in accordance with ASTM F519, Type 1a, 1c, or 2a. The compound shall betested as if it was a cleaner; the bars and rings shall be cadmium platedusing low-embrittlement cadmium cyanide bath.SAEAMS 3077Page 53.2.9 Effect on Painted Surfaces: The fluid shall neither decrease the paintfilms hardness by
30、more than one pencil hardness level nor shall itproduce any streaking, discoloration, or blistering of the paint film,determined in accordance with ASTM F502.3.2.10 Effect on Plastics: The compound shall not craze, stain, or discolorMIL-P-25690 stretched acrylic plastic, determined in accordance wit
31、hASTM F484.3.2.11 Odor: The compound shall neither have any characteristic odor nor shallit have a detectable odor 24 hours after application on an open surfacewhen heated to 90 5 (194F 9).3.2.12 Toxicity: When used as recommended by the manufacturer, the compoundshall not be toxic to personnel.3.2.
32、13 Low-Temperature Adhesion: No flaking shall be observable at 40C 3(-40F 5) when tested in accordance with MIL-C-16173 except thatspecimens shall be prepared according to 4.5.1.3.2.14 High-Temperature Adhesion: The compound, heated in a draft-free ovento 90C 5 (194F 9) for 4 hours 0.25 shall not fl
33、ow on a verticaltest panel prepared as in 4.5.1.3.2.15 Water Displacement: No corrosion or discoloration shall be visible onpanels, tested in accordance with 4.5.3.3.2.16 Penetration: No panel shall show lower penetration than 30 mm whentested in accordance with 4.5.2. Average of three tests shall b
34、e 35 mmor greater.3.2.17 Resistance to Fluids: Panels, prepared in accordance with 4.5.1, shallshow no sign of compound removal upon visual inspection after halfimmersion in the following fluids for the time specified:- ASTM D1193, Type IV, water 14 days- AMS 1526 Cleaning Compound, at use concentra
35、tionrecommended by manufacturer 4 hours- AMS 1425 Deicing Fluid, diluted 1:1 by volumewith ASTM D1193, Type IV, water 24 hours3.2.17.1 All tests shall include at least three panels and shall be performed at25C 5 (77 9).3.2.17.2 After immersion, the panels shall be rinsed with water, driedvertically
36、for 1 hour at 25C 5 (77F 9), and inspected for removalof compound.3.2.18 Resistance to Chemicals: Panels, prepared in accordance with 4.5.1 andtested in accordance with 4.5.4, shall show no sign of corrosion;discoloration is acceptable.SAEAMS 3077 Page 63.2.19 Corrosion Prevention:3.2.19.1 No apprec
37、iable attack shall be visible, either on the panels or on thebolts, nuts, or washers after 400 hours for panel No. 1 and 120 hoursfor panel Nos. 2 and 3, determined in accordance with 4.5.5.3.2.19.2 No appreciable attack shall be visible on AMS 4045 aluminum alloypanels, determined in accordance wit
38、h ASTM G34. After cleaning andbefore immersion, the samples shall be sprayed with the compound inaccordance with 4.5.1.2.3.2.19.3 No appreciable attack shall be visible on AMS 4165 aluminum alloypanels, tested in accordance with ASTM G34. After cleaning and beforeimmersion, panels should be sprayed
39、with the compound in accordancewith 4.5.1.2.3.2.20 Properties After Drying in Closed Space: No corrosion shall be visibleon the panel faces, tested in accordance with 4.5.6. Corrosion on theedges shall be ignored.3.3 Quality: The compound, as received by purchaser, shall be uniform inquality and con
40、dition, clean, and free from foreign materials and othercontaminants detrimental to usage of the compound.4. QUALITY ASSURANCE PROVISIONS:4.1 Responsibility for Inspection: The vendor of the compound shall supply allsamples for vendors tests and shall be responsible for performing allrequired tests.
41、 Results of such tests shall be reported to the purchaser asrequired by 4.6. Purchaser reserves the right to sample and to perform anyconfirmatory testing deemed necessary to ensure that the compound conformsto the requirements of this specification.4.2 Classification of Tests:4.2.1 Acceptance Tests
42、: Tests to determine conformance to requirements forsprayability (3.2.2), viscosity (3.2.3), removability (3.2.6), waterdisplacement (3.2.15), and penetration (3.2.16) are classified asacceptance tests and shall be performed on each lot of compound.4.2.2 Periodic Test: Tests to determine conformance
43、 to requirements for flashpoint (3.2.1), transparency (3.2.5), low-temperature adhesion (3.2.13),high-temperature performance (3.2.14), resistance to fluids (3.2.17),resistance to chemicals (3.2.18), corrosion prevention (3.2.19), andproperties after drying in closed space (3.2.20) are classified as
44、periodic tests and shall be performed at a frequency selected by thevendor unless frequency of testing is specified by purchaser.SAEAMS 3077Page 74.2.3 Preproduction Tests: Tests to determine conformance to all technicalrequirements of this specification are classified as preproduction testsand shal
45、l be performed prior to or on the initial shipment of compound toa purchaser, when a change in ingredients and/or processing requiresreapproval as in 4.4.2, and when purchaser deems confirmatory testing tobe required.4.2.3.1 For direct U.S. Military procurement, substantiating test data and, whenreq
46、uested, preproduction test material shall be submitted to thecognizant agency as directed by the procuring activity, contractingofficer, or request for procurement.4.3 Sampling: Shall be in accordance with ASTM D1568; a lot shall be allcompound produced in one continuous manufacturing operation from
47、 the samebatches of raw materials and presented for vendors inspection at one time.4.4 Approval:4.4.1 Sample compound shall be approved by purchaser before compound forproduction use is supplied, unless such approval be waived by purchaser.Results of tests on production compound shall be essentially
48、 equivalent tothose on the approved sample.4.4.2 Vendor shall use ingredients, manufacturing procedures, and methods ofinspection on production compound which are essentially the same as theseused on the approved sample compound. If necessary to make any change iningredients or in manufacturing proc
49、edures, vendor shall submit forreapproval a statement of the proposed changes in ingredients and/orprocessing and, when requested, sample compound. Production compound madeby the revised procedure shall not be shipped prior to receipt ofreapproval.4.5 Test Methods:4.5.1 Preparation of Test Panels:4.5.1.1 The test panels shall be fabricated from AMS 4037 aluminum alloy, 1 x 50x 100 mm (0.040 x 2 x 4 inches). A 2 mm (0.080 inch) diameter hole, forhanging may be located at any fe
