1、_ SAE Technical Standards 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 infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AMS3102 AEROSPACE MATERIAL SPECIFICATION AMS3102 Issued 2017-02 Sealing Compound, Polythioether
5、 Rubber Fast Curing, Light Weight (Specific Gravity 0.78, max.) for Integral Fuel Tanks and General Purpose, Intermittent Use to 360 F (182 C) RATIONALE New specification for polythioether sealing compounds with a specific gravity of 0.72 to 0.78. 1. SCOPE 1.1 Form This specification covers a fuel-r
6、esistant polythioether sealing compound with low specific gravity, supplied as a two-component system which cures at room temperature. 1.2 Application This sealing compound intended useage includes sealing aircraft integral fuel tanks, fillets and fastener seals and faying surface seals as well as i
7、nitial sealing of faying surfaces, overcoating fasteners, pressure barriers, sealing joints and seams, for service from -80 to 320 F (-62 to 160 C), with short-term recurring exposure (approximately 6 hours) up to 360 F (182 C) but usage is not limited to such applications. This product is not recom
8、mended for use on aircraft windshields or canopies or other applications where crazing or degradation of plastic components may occur. Sealing compound must be applied at temperatures above 50 F (10 C), but will cure at lower temperatures. 1.3 Classification Sealing compounds covered by this specifi
9、cation are classified by method of application and application times as follows: Class B - Suitable for application by extrusion gun or spatula. Available with the following application times in hours: B-1/2 B-2 1.4 Safety - Hazardous Materials Shall be in accordance with AS5502 (1.1). SAE INTERNATI
10、ONAL AMS3102 Page 2 of 13 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is speci
11、fied. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Can
12、ada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2629 Fluid, Jet Reference AMS3020 Oil, Reference, for “L” Stock Rubber Testing AMS3021 Fluid, Reference, for Testing Di-Ester (Polyol) Resistant Material AMS3277 Sealing Compound, Polythioether Rubber Fast Curing for Integral Fuel Tanks and Gene
13、ral Purpose, Intermittent Use to 360 F (182 C) AMS4045 Aluminum Alloy Sheet and Plate, 5.6Zn - 2.5Mg - 1.6 Cu - 0.23 Cr, 7075: (-T6 Sheet, -T651 Plate), Solution and Precipitation Heat Treated AMS4911 Titanium Alloy, Sheet, Strip, and Plate, 6Al - 4V, Annealed AMS5516 Steel, Corrosion-Resistant, She
14、et, Strip, and Plate, 18Cr - 9.0Ni (SAE 30302), Solution Heat Treated AMS-C-27725 Coating, Corrosion Preventative, for Aircraft Integral Fuel Tanks for Use to 250 F (121 C) AS5127 Aerospace Standard Test Methods for Aerospace Sealants Methods for Preparing Aerospace Sealant Test Specimens AS5127/1 A
15、erospace Standard Test Methods for Aerospace Sealants Two-Component Synthetic Rubber Compounds AS5502 Standard Requirements for Aerospace Sealants and Adhesion Promoters 2.2 U.S. Government Publications Copies of these documents are available online at http:/quicksearch.dla.mil. MIL-PRF-23377 Primer
16、 Coatings: Epoxy High Solids MIL-PRF-85285 Coating, Polyurethane, Aircraft and Support Equipment MIL-PRF-85582 Primer Coatings, Epoxy, Waterborne 2.3 PRI Publications Available from Performance Review Institute, 161 Thorn Hill Road, Warrendale, PA 15086-7527, Tel: 724-772-1616, www.pri-network.org.
17、PD2103 Aersopace Quality Assurance, Product Standards, Qualification Procedure, Sealants PRI-QPL-AMS3102 AMS3102 Qualified Products Listing SAE INTERNATIONAL AMS3102 Page 3 of 13 2.4 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 1942
18、8-2959, Tel: 610-832-9585, www.astm.org ASTM D792 Standard Test Method for Density and Specific Gravity (Relative Density) of Plastics by Displacement 3. TECHNICAL REQUIREMENTS 3.1 Materials The basic ingredient shall be synthetic rubber, made from liquid polythioether and derivations thereof. The s
19、ealing compound shall cure by the addition of a separate curing agent to the base compound and shall not depend on solvent evaporation for curing. The curing agent shall possess sufficient color contrast to the base compound to permit easy identification of an unmixed or incompletely mixed sealing c
20、ompound. Neither the base compound nor the cured sealing compound shall be red or pink in color. No glass fillers shall be used. 3.2 Date of Packaging Shall be in accordance with AS5502 (3.1). 3.3 Toxicological Formulations Shall be in accordance with AS5502 (3.2). 3.4 Quality Shall be in accordance
21、 with AS5502 (3.3). 3.5 Shelf Life Shelf life shall be a minimum of 9 months from the date of packaging when stored at 60 to 80 F (16 to 27 C). Material may be retested for shelf life extension per 4.3.3. 3.5.1 Premixed and Frozen Material Premixed and frozen material shall have a minimum storage li
22、fe of 42 days at -80 F (-62 C) or lower from date of mix/freeze. The date of mix/freeze shall be within the shelf life of the unmixed material. Recommendations for longer storage lives at other temperatures may be provided by the manufacturer. 3.6 Properties The base compound and the curing agent, w
23、hen mixed in accordance with manufacturers instructions and cured in accordance with 4.5.4.5, shall conform to all requirements shown in Table 1, determined in accordance with the specified test methods. SAE INTERNATIONAL AMS3102 Page 4 of 13 Table 1 - Properties Paragraph Property Requirement Test
24、Procedures (Paragraph) 3.6.1 Nonvolatile Content, by weight, minimum 95% AS5127/1 (5.1)3.6.2 Viscosity of Base Compound AS5127/1 (5.3) Class B (Use No. 7 spindle at 2 rpm) 9000 to 18000 poises WR3DV 3.6.3 Flow, maximum Class B 0.75 inch (19.0 mm) AS5127/1 (5.5.1) 3.6.4 Application Time, min AS5127/1
25、 (5.6) Class B - From the beginning of mixing, not less than 10 grams per minute shall be extruded. B-1/2 B-2 1/2 hour 2 hours AS5127/1 (5.6.2) 3.6.5 Tack-Free Time (Measured from beginning of mixing), hours, maximum B-1/2 B-2 3 hours 8 hours AS5127/1 (5.8) 3.6.6 Standard Cure Time (max time to reac
26、h 30 Durometer A), hours, maximum B-1/2 B-2 4 hours 12 hours AS5127/1 (5.9) 3.6.7 Specific Gravity (Note 1) 0.72 to 0.78 AS5127/1 (6.1) or ASTM D792 Method B (Using hexane) 3.6.8 Heat Reversion Resistance The sealant shall not revert to a liquid or paste-like consistency, nor shall it become brittle
27、 or lose adhesion AS5127/1 (6.5) 3.6.9 Hydrolytic Stability, minumim 30 Durometer A AS5127/1 (6.6) 3.6.10 Shaving and Sanding No tearing or rolling of the sealant; smooth finish AS5127/1 (6.7) 3.6.11 Paintability No separation from sealant AS5127/1 (6.8) 3.6.12 Weathering No cracking, chalking, peel
28、ing, or loss of adhesion AS5127/1 (6.9) 3.6.13 Chalking Slight AS5127/1 (7.1) 3.6.14 Resistance to Thermal Rupture, maximum Oven air aging at 320 F (160 C), 10 psi (69 kPa), 30 minutes 0.156 inch (3.96 mm) No blistering or sponging AMS3102 (4.6.1) and AS5127/1 (7.2) 3.6.15 Weight Loss 2 panels in AM
29、S2629 Type 1 / 3% saltwater; (All at 140 F (60 C) for 7 days) 20 lbf/in (3503 N/m)/ 100% cohesive failure AS5127/1 (8.1) and AMS3102 (4.6.3) 3.6.22.2 Long Term Storage AMS3102 (4.6.5) and AS5127/1 (9.2) 3.6.22.2.1 Application Time Same as 3.6.4 3.6.22.2.2 Tack-Free Time Same as 3.6.5 3.6.22.2.3 Stan
30、dard Cure Time Same as 3.6.6 NOTE 1: Due to the low density of AMS3102 sealant, test specimens may need to be held submerged with a metal wire or paper clip to prevent flotation. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection Shall be in accordance with AS5502 (4.1). 4.1.1 Source
31、Inspection Shall be in accordance with AS5502 (4.1.1). 4.1.2 Sampling Shall be in accordance with AS5502 (4.1.2). 4.2 Classification of Tests Shall be in accordance with AS5502 (4.2). 4.2.1 Qualification Tests Shall be in accordance with AS5502 (4.2.1). 4.2.1.1 Qualification Requirements for Class B
32、-2 Class B-2 shall be the first material that is qualified for each supplier of sealing compound. Class B-2 sealing compound shall be tested for, and shall meet all technical requirements of this specification with the exception of requirements unique to other application times of the sealing compou
33、nd. 4.2.1.2 Qualification of Subsequent Application Times Once qualification for Class B-2 has been obtained, other application times may be qualified. The formulation for other application times of qualified classes shall be the same as Class B-2 except for minor variations necessary for conformanc
34、e to viscosity and application time requirements. All compounds shall meet all technical requirements of this specification. Other application times of qualified classes need only to be tested to the initial acceptance tests listed in Table 2 or as defined by QPL agency. Any unique qualification tes
35、ts for the sealants application time shall also be tested per PD2103. SAE INTERNATIONAL AMS3102 Page 7 of 13 4.2.2 Initial Acceptance Tests Requirements shown in Table 2 are initial acceptance tests and shall be performed on each batch in accordance with AS5502 (4.2.2.1). Table 2 - Initial acceptanc
36、e tests Test Requirement Paragraph Nonvolatile Content 3.6.1 Viscosity of the Base Compound13.6.2 Flow 3.6.3 Application Time 3.6.4 Tack-Free Time 3.6.5 Standard Cure Time 3.6.6 Specific Gravity 3.6.7 Peel Strength 3.6.20 and 4.6.3.2 1Testing not required on material packaged pre-mixed and frozen (P
37、MF) or in sectionalized containers or small size containers less than eight ounces (235 mL). Testing is required for qualification testing. 4.2.3 Final Acceptance Tests Requirements shown in Table 3 are final acceptance tests and shall be performed on each lot in accordance with AS5502 (4.2.2.2). Ta
38、ble 3 - Final acceptance tests Test Requirement Paragraph Flow 3.6.3 Application Time 3.6.4 Tack-Free Time 3.6.5 Standard Cure Time 3.6.6 4.3 Sampling and Testing Shall be in accordance with AS5502 (4.3). 4.3.1 Qualification Test Samples Sample batches shall be produced using production scaled equip
39、ment. Enough material shall be supplied to perform all required tests. Samples shall be identified as specified herein and below: SEALING COMPOUND, POLYTHIOETHER RUBBER, FAST CURING, LIGHT WEIGHT (SPECIFIC GRAVITY 0.78, MAX.) FOR INTEGRAL FUEL TANK AND GENERAL PURPOSE FOR INTERMITTENT USE TO 360 F (
40、182 C) AMS3102 CLASS _ MANUFACTURERS IDENTIFICATION _ BATCH/LOT NUMBER_ DATE OF PACKAGING _ SHELF LIFE EXPIRATION DATE _ STORE BETWEEN 60 F AND 80 F (16 C AND 27 C) SAE INTERNATIONAL AMS3102 Page 8 of 13 4.3.2 Acceptance Testing Shall be in accordance with AS5502 (4.3.1) 4.3.2.1 Batch and Lot A batc
41、h shall be defined as the quantity of material run through a mill or mixer at one time. A lot shall be defined as material from one batch of each component assembled (packaged) as finished product in one size and/or type of container at the same time. The lot, when used, shall be traceable to the ba
42、tches of base compound and curing agent. 4.3.2.2 Initial and Final Acceptance Tests Sufficent material of each batch shall be prepared for initial and final acceptance testing and shall be packaged in the same type containers that are being procured. After successful completion of the intial accepta
43、nce tests listed in Table 2, the batch shall be released for final packaging. During packaging, test kits from each lot shall be selected at random for final acceptance testing. Final acceptance testing shall be conducted on the final packaged product and consist of those tests outlined in Table 3.
44、4.3.2.3 Final Acceptance Tests for Different Types and/or Size Containers If a batch is being packaged in different types and/or size containers, the final acceptance tests on the lot shall be conducted on each type and/or each size containers. If the sealing compound is being procured under differe
45、nt purchase orders, but the purchase orders call for the same type and size containers, it is only necessary to conduct the final acceptance tests one time. 4.3.3 Shelf Life Surveillance and Extension 4.3.3.1 Shelf-Life Testing The tests to be conducted for shelf-life extensions are listed in Table
46、4. Table 4 - Shelf-life testing Test Requirement Paragraph Viscosity of Base Compound1 3.6.2 Flow 3.6.3 Application Time 3.6.4 Tack-Free Time 3.6.5 Standard Cure Time 3.6.6 Peel Strength 3.6.20 and 4.6.3.2 1Not required for sectional-type containers. 4.3.3.2 Time and Limits of Shelf Life Extensions
47、If tests are being performed at the end of the stated shelf life to update the shelf-life of the sealing compound and all tests passed, then the shelf life may be extended an additional three months. A maximum of three extensions are permissible. 4.4 Approval Shall be in accordance with AS5502 (4.4)
48、. SAE INTERNATIONAL AMS3102 Page 9 of 13 4.5 Test Methods 4.5.1 Standard Tolerances Unless otherwise specified herein, standard tolerances of AS5127 (3) “Standard Tolerances” shall apply. 4.5.2 Standard Conditions Standard laboratory conditions shall be as specified in AS5127 (4). 4.5.3 Standard Heat Cycle When d
