1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and enginee ring sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefr
2、om, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invit es your written comments and suggestions.Copyright 1998 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.
3、S.A.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-7161 FAX: (724) 776-0243TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS: http:/www.sae.org400 Commonwealth Drive, Warrendale, PA 15096-0001AEROS PACE MATERIAL SPECIFIC ATIONSubmitted for recognition as an American National
4、 StandardAMS 1376BIssued JAN 1978Revised OCT 1992Reaffirmed MAY 1998Superseded by AMS 1376ARemover, Epoxy PaintAcid-Type, ThickenedFOREWORDChanges in this reaffirm are format/editorial only.1. SCOPE:1.1 Form: This specification covers a paint remover in the form of a liquid.1.2 Application: This pro
5、duct has been used typically for removing amine-cured, epoxy coating systems from aluminum alloys, but usage is not limited to such applications. This product is not intended for use on aircraft engine components or other high strength steel parts with hardness of 48 HRC or higher.1.3 Precautions: P
6、aint remover covered by this specification is toxic and contains ingredients harmful to skin and eyes. Information on necessary precautions to be followed when using this paint remover is provided in 5.1.4. This paint remover contains acidic material which may cause hydrogen embrittlement. This pain
7、t remover should not be used on magnesium.1.4 Safety - Hazardous Materials: While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in suc
8、h use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.AMS 1376B SAE AMS 1376B- 2 -2. APPLICABLE DOCUMENTS:The following publ
9、ications form a part of this specification to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order.2.1 SAE Publications:Available from SAE, 400 Commonwealth Drive, Warr
10、endale, PA 15096-0001.AMS 2470 Anodic Treatment of Aluminum Alloys, Chromic Acid ProcessAMS 2473 Chemical Treatment of Aluminum Alloys, General Purpose CoatingAMS 2825 Material Safety Data SheetsAMS 4037 Aluminum Alloy Sheet and Plate, 4.4Cu - 1.5Mg - 0.60Mn (2024; -T3 Flat Sheet, -T351 Plate), Solu
11、tion 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 Alloy Sheet and Plate, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075; -T6 Sheet, T651 Plate), Solution and Precipitation
12、Heat 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 4911 Titanium Alloy Sheet, Strip, and Plate, 6A1 - 4V, AnnealedMAM 4911 Titanium Alloy Sheet, Strip, and Plate, 6A1 - 4V, Anneale
13、d (Metric)2.2 ASTM Publications:Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM D 1193 Reagent WaterASTM F 483 Total Immersion Corrosion Test for Aircraft Maintenance ChemicalsASTM F 1110 Sandwich Corrosion Test2.3 U.S. Government Publications:Available from DODSSP,
14、 Subscription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.VV-W-95 Wax, Paraffin, TechnicalPPP-C-1337 Container, Composite (Steel Drum with Polyethylene Inserts)PPP-P-1892 Paint, Varnish, Lacquer, and Related Materials; Packaging, Packing, and Marking ofPPP-STD-141 Pai
15、nt, Varnish, Lacquer, and Related Materials, Methods of Inspection, Sampling and TestingMIL-D-6998 Dichloromethane, TechnicalMIL-T-23397 Tape, Pressure-Sensitive Adhesive, for Masking During Paint Stripping OperationsAMS 1376B SAE AMS 1376B- 3 -2.3 (Continued):MIL-STD-105 Sampling Procedures and Tab
16、les for Inspection by Attributes MS-24694 Screw, Machine, Flat Countersunk Head, 100 Deg, Structural, Cross Recessed, UNC-3A and UNF-3AAN315 Nut, Plain, AirframeAN960 Washer, Flat3. TECHNICAL REQUIREMENTS: 3.1 Material: Shall be a thixotropic paint remover consisting of organic solvents, evaporation
17、 retarders, wetting agent, and other ingredients to provide a product meeting the requirements of 3.2. The acid active ingredient shall be an organic acid or acids.3.1.1 Toxicity: The product shall be free from chemicals and solvents which may prove dangerously corrosive or may produce vapors in suc
18、h concentration as to become a medical hazard to personnel when used in accordance with manufacturers recommendation for its intended purpose. Contains dichloromethane and organic acids. May be fatal if swallowed; may cause skin burns. Do not use in confined spaces.3.2 Properties: The paint remover
19、shall conform to the following requirements; tests shall be performed in accordance with specified test methods on the product supplied:3.2.1 Consistency: The paint remover shall flow to a point between 160 and 230 mm in two minutes, determined in accordance with 4.5.1. The remover shall be of such
20、consistency that a smooth, even coating can be applied by brushing, flowing, or spraying onto, and will adhere to, the vertical surface of test panels and painted surfaces of aircraft for sufficient time for the remover to be effective.3.2.2 Flammability: The paint remover shall not continue to burn
21、 longer than three seconds after removal of the flame, determined in accordance with 4.5.2.3.2.3 Effect on Metallic Surfaces: 3.2.3.1 Sandwich Corrosion: Specimens shall pass the sandwich corrosion test, determined in accordance with ASTM F 1110.AMS 1376B SAE AMS 1376B- 4 -3.2.3.2 Total Immersion Co
22、rrosion: The product shall neither produce evidence of pitting of the panels nor cause a weight change of any panel greater than 0.4 mg/cm 2 per 24 hours, determined in accordance with ASTM F 483 on the following test panels.AMS 4037 Aluminum Alloy, anodized as in AMS 2470AMS 4041 Aluminum AlloyAMS
23、4045 Aluminum Alloy, anodized as in AMS 2470AMS 4049 Aluminum AlloyAMS 4911 or MAM 4911 Titanium Alloy3.2.3.3 Dissimilar Metal Corrosion: There shall be no significant discoloration or evidence of corrosion, determined in accordance with 4.5.3.3.2.4 Storage Stability: 3.2.4.1 Short- Term: The paint
24、remover shall not cake, clot, gel, or separate after being stored, undisturbed, at 25 C 5 (77 F 9) for six days in a darkened area. The remover shall not polymerize or show significant changes in physical appearance.3.2.4.2 Extended: Paint remover, stored as in 4.5.4, shall show no visible evidence
25、of deterioration. It shall, after storage, meet all other technical requirements. After being examined as in 4.5.4 for short-term stability, the paint remover shall completely lift the finish from test panels prepared and tested in accordance with 4.5.5.3.2.5 Paint Stripping Efficiency: The paint re
26、mover, tested in accordance with 4.5.5, shall remove at least 90% of the paint from the exposed surface within 60 minutes at 24 C 3 (75 F 5).3.2.5.1 Relative Stripping Efficiency: Shall be equal to, or better than, that of the control formula of 4.5.5, measured as the time to produce equal percentag
27、es of stripping or as the percentage of panel area stripped in equal lengths of time.3.2.6 Rinsability: The loosened paint and spent remover shall be easily removed by water rinsing, determined in accordance with 4.5.6. If residues or noticeable water breaks occur, they shall not adversely affect th
28、e drying or adhesion of an applied paint system.3.2.7 Refinishing Properties of Stripped Surfaces: Following stripping and wiping clean, using cloths saturated with methyl ethyl ketone or other suitable solvent, the paint remover shall leave a surface suitable for refinishing, determined in accordan
29、ce with 4.5.7.3.2.8 Volatility: Shall be equal to, or less than, the volatility of distilled water, determined in accordance with 4.5.8.AMS 1376B SAE AMS 1376B- 5 -3.3 Quality: Paint remover, as received by purchaser, shall be homogenous, uniform in consistency, suitable for spraying, brushing, or f
30、lowing application, and free from skins and lumps and from foreign materials detrimental to usage of the paint remover.4. QUALITY ASSURANCE PROVISIONS: 4.1 Responsibility for Inspection: The vendor of the product shall supply all samples for vendors tests and shall be responsible for performing all
31、required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to the requirements of this specification.4.2 Classification of Tests: 4.2.1 Acceptance Tests: Tests for consistency (3.2.1), flammability (3.2.2), tota
32、l immersion corrosion (anodized aluminum alloys only) (3.2.3.2), short-term storage stability (3.2.4.1), paint stripping efficiency (3.2.5), rinsability (3.2.6), and volatility (3.2.8) are acceptance tests and shall be performed on each lot.4.2.2 Preproduction Tests: Tests for all technical requirem
33、ents are preproduction tests and shall be performed prior to or on the initial shipment of the remover to a purchaser, when a change in ingredients and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirmatory testing to be required.4.2.2.1 For direct U.S. Military procure
34、ment, substantiating test data and, when requested, preproduction test material shall be submitted to the cognizant agency as directed by the procuring activity, contracting officer, or request for procurement.4.3 Sampling and Testing: Shall be in accordance with the following; a lot shall be all pa
35、int remover manufactured at the same time from the same batches of raw materials and presented for vendors inspection at one time. If paint remover cannot be identified by batch or tank, a lot shall consist of not more than 5000 gallons (18,927 L) offered for delivery at one time.4.3.1 For Acceptanc
36、e Tests: 4.3.1.1 Bulk Quantity: Samples shall be selected in accordance with FED-STD-141 except that the sample shall consist of not less than one gallon (4 L) of paint remover from each lot.4.3.1.2 Filled Containers: A random sample of filled containers shall be selected from each lot in accordance
37、 with MIL-STD-105 at inspection level I to verify conformance to all requirements regarding fill, closure, marking, and other requirements not involving tests.AMS 1376B SAE AMS 1376B- 6 -4.3.2 For Preproduction Tests: As agreed upon by purchaser and vendor.4.4 Approval: 4.4.1 Paint removal shall be
38、approved by purchaser before remover for production use is supplied, unless such approval be waived by purchaser. Results of tests on production remover shall be essentially equivalent to those on the approved sample.4.4.2 Vendor shall use ingredients, manufacturing procedures, and methods of inspec
39、tion on production paint remover which are essentially the same as those used on the approved sample remover. If necessary to make any change in ingredients or in manufacturing procedures, vendor shall submit for reapproval a statement of the proposed changes in ingredients and/or processing and, wh
40、en requested, sample remover. Production remover made by the revised procedure shall not be shipped prior to receipt of reapproval.4.5 Test Methods: Tests shall be conducted as follows; all tests shall be conducted at 24 C 3 (75 F 5) and the relative humidity shall be noted:4.5.1 Consistency: Shall
41、be determined with a Consistometer or equivalent type instrument.4.5.2 Flammability: 4.5.2.1 Preparation of Test Panels: One end of a clean AMS 4037 aluminum alloy panel 0.040 x 4 x 3/4 inch (1.02 x 102 x 19 mm), anodized in accordance with AMS 2470, shall be held at an angle of approximately 45 deg
42、rees. The paint remover shall be poured along the upper edge of the panel allowing the remover to flow freely over the surface. Paint remover settling on the reverse side of the panel shall be wiped clean before proceeding with the test.4.5.2.2 Procedure: A micro-burner flame, 1/8 to 3/16 inch (3.2
43、to 4.8 mm) in height shall be passed, within a two second period, back and forth along the lower edge of the panel. This operation shall be repeated three times at three second intervals. If the paint remover ignites, the burner flame shall be removed and observation made to ascertain whether the re
44、mover continues to burn. The above procedure shall be repeated on another similarly prepared panel except that it shall be placed in an oven for 15 minutes 1 at 45 C 2 (115 F 4). The panel shall then be removed from the oven and subjected to the flame test as above.AMS 1376B SAE AMS 1376B- 7 -4.5.3
45、Dissimilar Metal Corrosion: 4.5.3.1 Preparation of Test Panels: Four test panels, two each of AMS 4041 and AMS 4049 aluminum alloys, shall be prepared as follows; each panel shall be approximately 0.125 x 3 x 4 inches(3.18 x 76 x 102 mm). The two panels of AMS 4041 aluminum alloy shall have holes dr
46、illed as shown in Figure 1. The other two panels of AMS 4049 aluminum alloy shall have holes located as specified in Note 3 of Figure 1. The panels shall be cleaned by immersion for not less than 60 seconds in boiling, reagent grade, isopropanol, rinsed several times in methyl ethyl ketone, and drie
47、d. Dissimilar metal couples shall be assembled as in Figure 2, using a shim of polyethylene 0.010 inch (0.25 mm) in nominal thickness under one corner, with cadmium plated steel screws, nuts, and washers turned finger tight; in forming the couples, care shall be exercised to avoid making fingerprint
48、s on the test panels.4.5.3.2 Procedure: Immerse the coupled panels completely in the paint remover for 60 minutes 5. Remove the couples and place them in an oven, maintained at 38 C 1 (100 F 2), for not less than 48 hours. Remove the panels from the oven and immediately suspend them in a clean desic
49、cator having the lower portion filled with ASTM D 1193, Type IV, water; close the desiccator and maintain it at 25 C 1 (77 F 2), keeping it tightly sealed. After 48 hours, remove the couples from the desiccator, wash each panel with water, and clean the panels with acetone. Examine each panel for pitting, etching, and corrosion products.4.5.4 Extended Storage Stability: One gallon (4 L) of paint remover shall be stored in a glass bottle. The bottle shall be protected from light and stored for six months at 24 C 3 (75 F 5). After storage, the
