SAE AMS 3381-2014 Sealing Compound Aircraft Firewall Non-Silicone《非硅制飞机防火墙的密封化合物》.pdf
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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 theref
2、rom, 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 2014 SAE InternationalAll rights reserved. No part of this publi
3、cation 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: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS3381AEROSPACE MATERIAL SPECIFICATIONAMS3381Issued 2014-05Superseding MIL-S-38249Sealing Co
5、mpound, Aircraft Firewall, Non-SiliconeRATIONALEThis document replaces MIL-S-38249 (cancelled in 1997) for flame-resistant, non-silicone, elastomeric compounds for sealing of firewall structure. AS5127/2 Class C is referenced for flame resistance requirements. AMS3374 supersedes MIL-S-38249 for sili
6、cone compounds.1. SCOPE1.1 FormThis specification covers non-silicone synthetic rubber sealing compounds curing to elastomeric materials.1.2 ApplicationThese products are used primarily for sealing aircraft firewall structures against passage of air, vapors, and flames but usage is not limited to su
7、ch applications. The sealing compounds are effective at all temperatures from -65 to 400 F (-54to 204 C) and are able to withstand flash temperatures of up to 2000 F (1093 C). Sealants qualified to this specification are defined as flame tolerant in accordance with AS5127/2 and are able to prevent f
8、lame penetration from incidental exposure to smaller fires. Users should evaluate their specific flame-resistance requirements prior to specifying any firewall sealing compound.1.3 ClassificationNone1.4 Safety - Hazardous MaterialsShall be in accorrdance with AS5502 (1.1).2. APPLICABLE DOCUMENTSShal
9、l be in accordance with AS5502 (2.).2.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.AMS2629 Fluid, Jet ReferenceAMS3021 Fluid, Reference for Testing Di-Ester
10、(Polyol) Resistant MaterialSAE INTERNATIONAL AMS3381 Page 2 of 7AMS4911 Titanium Alloy Sheet, Strip, and Plate, 6Al-4V, AnnealedAMS5517 Steel, Corrosion Resistant, Sheet and Strip, 18Cr-8Ni (SAE 30301), Cold Rolled, 125 ksi (862 MPa) Tensile StrengthAMS-QQ-A-250/5 Aluminum Alloy Alclad 2024, Plate a
11、nd Sheet AS1241 Fire Resistant Phosphate Ester Hydraulic Fluid for AircraftAS5127 Aerospace Standard Test Methods for Aerospace Sealants; Methods for Preparing Aerospace Sealant Test SpecimensAS5127/1 Aerospace Standard Test Methods for Aerospace Sealants, Two-Component Synthetic Rubber CompoundsAS5
12、127/2 Test Methods for Aerospace Firewall Sealant Flame PenetrationAS5502 Standard Requirements for Aerospace Sealants and Adhesion Promoters2.2 PRI PublicationsAvailable from Performance Review Institute, 161 Thornhill Road, Warrendale, PA 15086-7527, Tel: 724-772-1616, or www.pri-network.org.PD200
13、0 Governance and Administration of an Industry Managed Product Qualification ProgramPD2001 Manufacturer Request for Product Approval and Qualification ProcessPD2103 Aerospace Quality Assurance, Product Standards, Qualification Procedure, SealantsPRI-QPL-AMS3381 Products Qualified under AMS33813. TEC
14、HNICAL REQUIREMENTS3.1 MaterialsThe basic ingredients shall not contain silicone compounds. The base compound and curing agent shall possess sufficient color contrast to permit easy identification of an unmixed or incompletely mixed sealing compound.3.2 Date of PackagingShall be in accordance with A
15、S5502 (3.1).3.3 Toxicological FormulationsShall be in accordance with AS5502 (3.2).3.4 QualityShall be in accordance with AS5502 (3.3).3.5 Shelf LifeShelf life of sealing compounds shall be a minimum of 12 months from date of packaging when stored below 80 F (27 C).3.6 PropertiesShall conform to the
16、 following requirements and test methods shown in Table 1.SAE INTERNATIONAL AMS3381 Page 3 of 7TABLE 1 - PROPERTIESProperty Requirement Test Procedures (paragraph)3.6.1 Nonvolatile Content, min 65% AS5127/1 (5.1)3.6.2 Flow, max 1.5 in (38 mm) AS5127/1 (5.5.1)3.6.3 Application Time, min, not less tha
17、n 15 grams/minute shall be extruded1.5 hrs AS5127/1 (5.6.2)3.6.4 Tack-Free Time, hours, max 24 hrs AS5127/1 (5.8)3.6.5 Specific Gravity, max 1.5 AS5127/1 (6.1)3.6.6 Standard Cure Time, (to reach 30Durometer A), max48 hrs AS5127/1 (6.2)3.6.7 Resistance to Thermal Rupture, max deformation, AS5127/1 (7
18、.2)13.6.7.1 Oven air aging at 400 10 F (204 5C), 50.5psi (34kPa),15minutes0.125 inch (3.2 mm)No blistering or sponging3.6.7.2 Room temp test of 2000 F Flame-tested panel, max deformation0.125 inch (3.2 mm)3.6.8 Low Temperature Flexibility No cracking, checking, or loss ofadhesionAS5127/1 (7.6.1)13.6
19、.9 Oil Resistance No loss of adhesion, softening, blistering or reversionAMSXXXX (4.5.1)3.6.10 Corrosion Resistance No loss of adhesion, softening, blistering or leaching of the sealing compound or corrosion of the panel under the sealant.AMSXXXX (4.5.2)3.6.11 Flame Resistance Sealing compound shall
20、 not burn through to panel and shall not continue to burn after a flame exposure of 15 minutesAS5127/2 (8)3.6.12 Peel Strength, min,Cohesive failure, min10 lbs/in (1750 N/m)100%AS5127/1 (8.1)23.6.13 Repairability Adhere, shall meet 3.6.12 requirement AS5127/1 (8.2)33.6.14 Storage Stability3.6.14.1 A
21、ccelerated StorageFlow Application TimeTack-free TimeStandard Cure TimeSame as 3.6.2Same as 3.6.3Same as 3.6.4Same as 3.6.6AS5127/1 (9.1)43.6.14.2 Long Term StorageApplication TimeTack-free TimeStandard Cure TimeSame as 3.6.3Same as 3.6.4Same as 3.6.6AS5127/1 (9.2)1Test control specimens only, no AM
22、S2629 exposure requirement.2Test using 2 each AMS-QQ-A-250/5 aluminum alloy anodized per AS5127 (6.3), AMS4911 titanium alloy and AMS5517 stainless steel panels only. Test control specimens and specimens aged in air at 400 10 F (204 5 C) for 72 hours 1.3Omit AMS2629 fluid soak from panel preparation
23、.4Use AS5127/1 (9.1) for sealing compound material conditioning only.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionShall be in accordance with AS5502 (4.1).4.1.1 Source InspectionShall be in accordance with AS5502 (4.1.1)4.2 Classification of TestsShall be in accordance with AS5502
24、 (4.2).SAE INTERNATIONAL AMS3381 Page 4 of 74.2.1 Qualification TestsShall be in accordance with AS5502 (4.2.1). Any changes in ingredients and/or processing of an adhesion promoter used to qualify sealing compounds shall require retesting of all technical requirements in Table 1 which rely on the u
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