Browse Topic: Adhesives and sealants

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Requirements Extract for AS5127D Aerospace Standard Test Methods for Aerospace Sealants Methods for Preparing Aerospace Sealant Test SpecimensSA-DIG-000025/1/2026
This digital standard is a requirements extract of AS5127D Aerospace Standard Test Methods for Aerospace Sealants Methods for Preparing Aerospace Sealant Test Specimens. This file contains a general requirements extraction as well as files that are optimized for use with Doors Classic, Siemens Polarian, and PTC.
REPAIR SLEEVE, PRIMARY WIRE INSULATION DAMAGE, ELECTRIC, PERMANENT, ENVIRONMENT RESISTANT, 150 °C MAXIMUM OPERATING TEMPERATURE AS6224/1A (Current)10/7/2025
This specification covers detail requirements of side enterable insulation damage replair sleeve with adhesive lining.
AE-8C2 Terminating Devices and Tooling Committee
Aerospace Standard Test Methods for Aerospace Sealants Methods for Preparing Aerospace Sealant Test SpecimensAS5127D (Current)6/26/2024
This standard describes the accepted methods used for preparing aerospace sealant test specimens for qualification and quality conformance or acceptance testing. AS5127/1 and AS5127/2 are to be used in conjunction with this document and the applicable AMS specifications.
AMS G9 Aerospace Sealing Committee
Influence of Rotorcraft Gearbox Lubricants on the Relative Adhesive Wear of Rolling Element Bearing Material PairsF-0079-2023-181445/16/2023
Jr., Carl, Sadinski, Robert, Hullenbaugh, Gretchen
Relative Adhesive Wear Performance of Rolling Element Bearings Material PairsF-0078-2022-176025/10/2022
ABSTRACT
Sadinski, Robert, Hager(Jr.),  Carl, Prock,  Dave
Adhesion Promoter for Polysulfide Sealing CompoundsAMS3100E (Current)10/19/2021
This specification covers adhesion promoters in liquid form for use with aerospace sealing compounds.
AMS G9 Aerospace Sealing Committee
Insulating Component, Molded, Electrical, Heat Shrinkable, Connector and Cable Accessory, Sealing Strain Relief, General Specification ForAS5258A (Current)10/13/2021
This specification covers connector and cable accessory heat shrinkable, electrical insulating, molded components fabricated from various polymer based compositions. These components are intended for use as connector and cable accessory components to provide strain relief, electrical insulation, and environmental sealing.
AE-8C1 Connectors Committee
Sealing Compound, Topcoat, Fuel Tank, Buna-N TypeAMSS4383C (Current)6/29/2021
This specification covers one type of one-component, air-drying protective coating which cures at room temperature.
AMS G9 Aerospace Sealing Committee
Sealing Compound, Non-Curing, Fluorosilicone Groove Injection Temperature and Fuel ResistantAMS3376D (Current)6/1/2021
This specification covers a permanently mastic, non-curing fluorosilicone sealing compound in the form of a paste.
AMS G9 Aerospace Sealing Committee
Temporary Protective Coating and RemoverAMS7202 (Current)5/13/2021
This specification establishes requirements for a temporary protective coating (TPC) intended to protect aluminum surfaces from damage and corrosion. This specification also establishes requirements for an alkaline remover used to strip the specified TPCs.
AMS G8 Aerospace Organic Coatings Committee
Surface Tolerant Adhesives for Bonded Airframe StructuresF-0077-2021-168955/10/2021
ABSTRACT
Sharifi, Majid, Tandon, Gyaneshwar, Brown, Ian, Jordan, Delaney
Unidirectional Carbon Fiber Tape Epoxy Repair Prepreg, Vacuum Curing Part 5 - Material Specification for Unidirectional Carbon Fiber Tape Epoxy Prepreg for Repair and Film Adhesive for Repair, 120 to 145 °C (250 to 290 °F) CuringAMS6885/5 (Current)2/22/2021
AMS6885/5 is the Material Specification (MS) which defines the requirements of a unidirectional carbon fiber tape epoxy repair prepreg capable of curing under vacuum for repair of carbon fiber reinforced epoxy structures. It also defines the requirements of an epoxy film adhesive to be applied in a co-bonding process with the prepreg for solid laminate and sandwich bonding.
AMS CACRC Commercial Aircraft Composite Repair Committee
Induction Cure Test for Metal Bonding AdhesivesJ1851_202101 (Current)1/7/2021
This SAE Recommended Practice defines a procedure for determining the adhesion strength characteristics of heat-cured metal bonding adhesives subjected to induction heating.
Materials, Processes and Parts Council
Electrocoat Compatibilities of Automotive SealersJ1969_202101 (Current)1/7/2021
This SAE Recommended Practice sets forth a method for determining the compatibility of automotive sealers with cathodic electrocoat primer.
Materials, Processes and Parts Council
Overlap Shear Test for Sealant Adhesive Bonding of Automotive Glass Encapsulating Material to Body OpeningJ1836_202101 (Current)1/7/2021
This recommended practice defines a procedure for the construction of a lap shear specimen for the purpose of testing the bondability of an automotive sealant adhesive to the elastomeric material used in automotive encapsulating. The present practice of encapsulating automotive glass is described as molding elastomeric material onto the outer edge of the glass using thermoplastic or thermosetting material that quickly sets in the mold. The glass is removed from the mold with cured elastomeric material bonded to the perimeter of thee glass. This encapsulated glass module can now be bonded with a sealant adhesive into the body opening of a vehicle.
Materials, Processes and Parts Council
Overlap Shear Test for Automotive Type Sealant for Stationary Glass BondingJ1529_202101 (Current)1/7/2021
This SAE Recommended Practice defines a procedure for the construction and testing of glass to metal lap shears for determining shear strength of sealant adhesives for automotive stationary glass bonding. This procedure can also be used for fiber reinforced plastic (FRP) when used in place of metal.
Materials, Processes and Parts Council
Surface Match Verification Method for Pressure Sensitive Adhesively Attached ComponentsJ2215_202101 (Current)1/7/2021
This SAE Recommended Practice applies to evaluation of the conformance match condition existing between two surfaces. Evaluation of this conformance may be especially useful in bonded applications although it may also have relevance to bolted adjacent surface joint conditions. Since good bonding surface conformity is necessary for providing optimal bond performance with pressure sensitive adhesives, the purpose of this document is to provide a method of evaluating the conformance match of the mating surfaces. This document is intended as a guide toward standard practice but may be subject to frequent change to keep pace with experience and technical advances. This should be kept in mind when considering the use of this document. Tool types, materials, application tools, and component contact area evaluation methods are included as part of this document. In most cases a visual evaluation of contact performance may be satisfactory; however, for greater accuracy a measurement tool may be used. When reporting a contact value the mode of evaluation (e.g., visual, measurement tool) should be indicated.
Materials, Processes and Parts Council
Peel Strength of Soft Trim AdhesivesJ1679_202101 (Current)1/7/2021
This SAE Recommended Practice shall be used to determine the peel strength achieved by an adhesive when used to bond various decorative, flexible substrates such as cloth supported vinyl or carpet, to rigid (steel), semi-rigid (SMC plastic), or other similar substrates.
Materials, Processes and Parts Council
Sealing Compound, Flame Resistant, Non-SiliconeAMS3381B (Historical)10/14/2020
This specification covers non-silicone synthetic rubber sealing compounds supplied as a two-component system that cures at room temperature.
AMS G9 Aerospace Sealing Committee
Sealing Compound, Polysulfide (T) Rubber, Fuel Resistant, Non-Chromated Corrosion Inhibiting for Intermittent Use to 360 °F (182 °C)AMS3265F (Current)9/9/2020
This specification covers polysulfide rubber sealing compounds containing only non-chromated corrosion inhibitors, supplied as a two-component system which cures at room temperature.
AMS G9 Aerospace Sealing Committee
REPAIR SLEEVE, PRIMARY WIRE INSULATION DAMAGE, ELECTRIC, PERMANENT, ENVIRONMENT RESISTANT, 150 °C MAXIMUM OPERATING TEMPERATUREAS6224/1 (Historical)8/17/2020
AE-8C2 Terminating Devices and Tooling Committee
New Coating Process Lights Porous Electronics and SensorsTBMG-373648/1/2020
Researchers have shown how to coat glass and plastic with porous titanium dioxide. The fabrication process is straightforward, the materials are cheap, and the ceramic’s gas sensing performance is considerably improved compared with current devices.
CONNECTOR, PLUG, ATTACHABLE, EXTERNAL ELECTRIC POWER, AIRCRAFT, 115/200 VOLT, 400 HERTZAS25486B (Current)4/17/2020
AE-8C1 Connectors Committee
Hybrid Forming - A Novel Manufacturing Technique for Metal-LFT Structural Parts2020-01-02354/14/2020
Hybrid structural parts combining aluminum or steel sheets with long glass fiber reinforced thermoplastics (LFT) offer a great opportunity to reduce component weight for automotive applications. But due to high manufacturing cost, metal-LFT hybrid components are still scarcely used in automotive large-scale production. Thus in this work a novel cost- and time efficient manufacturing process for simultaneous metal sheet forming and compression molding of long fiber reinforced thermoplastics to manufacture automotive lightweight components is presented. In this manufacturing process, which is referred to as “Hybrid forming”, a fiber reinforced thermoplastic melt is used as a forming medium in the manner of well-known hydroforming processes. After forming the metal sheet by polymer melt in combination with the rigid die, the melt solidifies and forms a local reinforcement structure in the hybrid component. Since the metal sheet is pre-coated with a bonding agent prior to the forming process, a firmly bonded connection between metal and LFT can be achieved. For proof of concept a longitudinal control arm in a multi-link rear axle is chosen. By utilizing Hybrid forming a hybrid steel-LFT control arm is manufactured with weight savings of 20 % with regard to the metal reference component. Weight savings are derived by reducing the metal thickness and compensate stiffness and strength with local load-conforming LFT ribs. The metal part of the hybrid control arm guaranties the same positive fail-safe behavior of a metal component in contrast to the brittle failure mechanics of pure CFRP/GFRP components. To verify the resilience of the hybrid component and especially the bonding surface between steel and LFT quasi-static tests and fatigue tests were conducted. The results are compared with the FE-simulations to validate the simulation technique, which can be used to design metal-LFT structural parts manufactured by hybrid forming for future applications.
Heidrich, Daniel, Kloska, Tobias, Fang, Xiangfan
Eco-profiling of Bio-epoxies via Life Cycle Assessment13-01-01-00033/25/2020
Epoxies, synthesized from bisphenol-A (BPA) and epichlorohydrin (ECH), are predominantly used as coatings, adhesives, and matrix material in fiber-reinforced composites for body-in-white (BiW) applications in the automotive sector. However, given the production of conventional epoxies from nonrenewable petroleum resource and toxicity of BPA, several initiatives have been undertaken by researchers to synthesize alternative epoxies from various bio-sources that are free of BPA and exhibit similar mechanical performance. As a result, such bio-sourced epoxies are almost immediately termed as “ecofriendly,” despite the lack of comprehensive evaluation of their ecological performance that takes into account enhanced natural resource usage and associated impacts accompanying such epoxies. Hence, this work aims at addressing this gap by evaluating the environmental impacts of such bio-sourced epoxies via cradle-to-gate life cycle assessment (LCA) to determine the genuine credentials of their ecofriendliness. Epoxies synthesized from three different bio-sources - namely, bark extractives, lignin, and triglyceride - were chosen so to evaluate their ecological performance. ReCiPe midpoint and endpoint methods were used to evaluate these epoxies in accordance with ISO 14040 and ISO 14044 standards. Among the three bio-epoxies, lignin-based epoxy exhibits poor eco-performance mainly due to the use of large amount of chemicals during extraction of lignin, involving delignification and valorization. On the contrary, bio-epoxy synthesized from triglycerides was found to be ecofriendly compared to other bio-epoxies. All bio-epoxies are observed to contribute significantly to toxicity-related categories, mainly due to higher electricity consumption during both epoxy synthesis and manufacturing processes. Overall, this work sheds light on various avenues for synthesizing truly sustainable epoxies that exhibit mechanical performance comparable to their conventional counterparts.
Kousaalya, Adhimoolam Bakthavachalam, Iyer, Rakesh Krishnamoorthy, Pilla, Srikanth
Alternatives to Cadmium PlatingAIR4160B (Current)3/24/2020
To document and provide access to information obtained by an industry survey.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Aerospace Standard Test Methods for Aerospace Sealants Two-Component Synthetic Rubber CompoundsAS5127/1D (Current)3/18/2020
This SAE Aerospace Standard (AS) describes test methods to determine the application and performance properties of two-component sealing compounds. It shall be used in conjunction with AS5127 and the applicable material specification. When modifications to these test methods are called out in material specifications, the material specification shall take precedence.
AMS G9 Aerospace Sealing Committee
Slippery Surfaces Allow Sticky Pastes and Gels to SlideTBMG-361923/1/2020
Materials known as yield-stress fluids, including gels and pastes, can be found in consumer products such as food, condiments, and cosmetics, and in products in the energy and pharmaceuticals industries. Unlike other fluids such as water and oils, these materials will not start to flow on their own, even when their container is turned upside-down. Starting the flow requires an input of energy, such as squeezing the container.
Celebrating Women in Engineering & Science: Renee Bernstein, CEO, Cotronics CorporationTBMG-361673/1/2020
Cleaning and Preparation of Metal SurfacesAMS03_2C (Current)2/25/2020
This SAE Standard specifies processes for the cleaning of metal surfaces to remove any extraneous or undesirable material or deposits at any stage of manufacture, storage or service and for the preparation of these surfaces for further treatment. Any necessary stress-relieving treatments are also included. This Standard does not override special preparatory procedures specified in individual Defence Standards, Defence Specifications, DTD Process Specifications, DG Ships Specifications and Naval Defence Standards. It also does not cover cleaning operations associated with the maintenance of internal combustion engines, the preliminary removal of heavy deposits of oil, grease, or dirt accumulated during operational service, preparations for welding and the cleaning of electrical contacts.
AMS B Finishes Processes and Fluids Committee
‘Hyper Glue’ Could Be Used for Medical ImplantsTBMG-360152/1/2020
Researchers hope to make everything from protective clothing to medical implants stronger and more corrosion resistant thanks to a newly developed hyper glue formula. The team of chemists and composite materials researchers discovered a broadly applicable method of bonding plastics and synthetic fibers at the molecular level in a procedure called cross-linking. The cross-linking takes effect when the adhesive is exposed to heat or long-wave UV light making strong connections that are both impact-resistant and corrosion-resistant. Even with a minimal amount of cross linking, the materials are tightly bonded.
Q&A: Electrically Conductive Coated Yarn for Wearable, Washable FabricsTBMG-359822/1/2020
Professor Genevieve Dion, Director of Drexel University's (Philadelphia, PA) Center for Functional Fabrics, is collaborating with other experts to coat yarn with the highly conductive, two-dimensional material MXene. They demonstrated that the yarn could be used with standard textile manufacturing techniques to create wearable conductive fabric.
Threads Detect Gases When Woven into ClothingTBMG-359892/1/2020
A fabrication method was developed to create dyed threads that change color when they detect a variety of gases. The threads can be read visually or even more precisely by use of a smartphone camera, to detect changes of color due to analytes as low as 50 parts per million. Woven into clothing, the gas-detecting threads could provide a reusable, washable, and affordable safety asset in medical, workplace, military, and rescue environments.
Breathable Electronic Skin Using Nanofiber SubstrateTBMG-358071/1/2020
Wearable electronic devices for health monitoring using electronic skin have emerged but most electronic skin-related technologies utilize materials such as plastic or rubber that can cause skin irritation or interfere with metabolism when attached to skin or biological tissue.
Optical Window for Far-IR Instruments Using Thin TOPAS® FilmTBMG-358091/1/2020
Most flight instruments that use cryogenics or non-cryogenics require physical isolation of their internal instruments (sensors, detectors, spectrometers) from the external environment. This isolating window film also needs to be transparent in the operational frequency of the internal instruments to detect electromagnetic waves. As such, the film needs to have the necessary strength to hold the vacuum pull and provide a low transmission loss.
Options for Reducing Friction When Using Silicone ElastomersTBMG-357691/1/2020
Silicone has a long and proven history of use with medical devices and can provide many benefits, from flexibility to cushioning. When working with some medical devices, however, silicones can present challenges due to an inherent surface tack. The surface of cured silicone elastomers is sometimes characterized by a high coefficient of friction (CoF), some degree of tackiness, and a tendency for blocking (sticking to itself by virtue of chemical affinity). These characteristics may need to be addressed in applications that require a molded or extruded silicone component to move or slide with minimal friction. Blocking is particularly evident in slit valves, for example, where the two sides of the silicone part touch each other and “heal,” or close the slit.
Double-Sided Tape for Tissues Could Replace Surgical SuturesTBMG-357811/1/2020
Inspired by a sticky substance that spiders use to catch their prey, MIT engineers have designed a double-sided tape that can rapidly seal tissues together.
Cleaning and Preparation of Metal SurfacesAMS03_2B (Historical)12/17/2019
This SAE Standard specifies processes for the cleaning of metal surfaces to remove any extraneous or undesirable material or deposits at any stage of manufacture, storage or service and for the preparation of these surfaces for further treatment. Any necessary stress-relieving treatments are also included. This Standard does not override special preparatory procedures specified in individual Defence Standards, Defence Specifications, DTD Process Specifications, DG Ships Specifications and Naval Defence Standards. It also does not cover cleaning operations associated with the maintenance of internal combustion engines, the preliminary removal of heavy deposits of oil, grease, or dirt accumulated during operational service, preparations for welding and the cleaning of electrical contacts.
AMS B Finishes Processes and Fluids Committee
Novel Applications of Electrospinning Could Improve DevicesTBMG-3563612/1/2019
When you visit Andrew Steckl’s lab at the University of Cincinnati, you see a nondescript glass box that weaves together different fibers. He sees endless possibility.
Macro-Fiber Composite (MFC) ActuatorTBMG-3572412/1/2019
The Macro-Fiber Composite (MFC) actuator is a low-cost piezoelectric device designed for controlling vibration, noise, and deflections in composite structural beams and panels. It is an encapsulated, high-performance, in-plane, piezoelectric fiber composite strain device that consists of rectangular piezoelectric fibers sandwiched between layers of adhesive and electrode polyimide film.
2019 'Create the Future' Manufacturing/Robotics/Automation Category Winner: The HPCI® Joining GunTBMG-3544011/1/2019
Pearl-Like Coating Enhances Lightweight ArmorTBMG-3545311/1/2019
By mimicking the outer coating of pearls (nacre or mother of pearl), researchers created a lightweight plastic that is 14 times stronger and eight times lighter (less dense) than steel. It could be applicable to vests, helmets, and other types of body armor as well as protective armor for ships, helicopters, and other vehicles.
Primer, Anodic Electrodeposition for Aircraft ApplicationsAMS3144A (Current)10/17/2019
This specification establishes the requirements for a waterborne, corrosion inhibiting, chemical and solvent resistant, anodic electrodeposition epoxy primer capable of curing at 200 to 210 °F (93 to 99 °C).
AMS G8 Aerospace Organic Coatings Committee
Products of Tomorrow: October 2019TBMG-3528610/1/2019
This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that innovation.
Hydrogel Adhesive Helps in Wound HealingTBMG-3534710/1/2019
Cuts, scrapes, blisters, burns, splinters, and punctures — there are a number of ways our skin can be broken. Most treatments for skin wounds involve simply placing a barrier over them (usually an adhesive gauze bandage) to keep it moist, limit pain, and reduce exposure to infectious microbes, but do not actively assist in the healing process. A new, scalable approach to speeding up wound healing has been developed based on heat-responsive hydrogels that are mechanically active, stretchy, tough, highly adhesive, and antimicrobial: active adhesive dressings (AADs). Created by researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard University, Harvard's John A. Paulson School for Engineering and Applied Sciences (SEAS), and McGill University, AADs can close wounds significantly faster than other methods and prevent bacterial growth without the need for any additional apparatus or stimuli. The research is reported in Science Advances.
Products of Tomorrow: September 2019TBMG-351239/1/2019
Ruggedized BioprinterTBMG-351039/1/2019
nScrypt Inc. Orlando, FL 407-275-4755
Automotive Engineering: September 201919AUTP099/1/2019
Engineering the 2020 Chevrolet Corvette The eighth-gen (C8) Corvette is a creative mix of novel and traditional technical solutions - unleashed at a shockingly low base price. Stuck on structural adhesives As the need for lighter materials and enhanced body performance intensifies, structural adhesives flourish as a materials-joining solution. Rethinking ADAS materials New specialized thermoplastics offer greater design freedom to improve sensor performance and packaging, at reduced cost. Inside VW's expanding Silicon Valley lab The pioneering California innovation hub enters its third decade on a new wave of innovation. Editorial There is no substitute for 'Automotive Grade' Standards News SAE embraces micromobility and its macro challenges Supplier Eye The value - and risks - of Technology Testbeds What We're Driving Latest mass-reducing innovations honored by Altair GM underway with plan to build U.S. electric-vehicle charging infrastructure Ford 'cranks' it up with another big V8 for Mustang ZF shifts EV transmission efficiency up a gear 2020 Hyundai Palisade: New chassis, Atkinson V6 Ford returns to OHVs for new commercial-truck V8 Q&A American Battery Solutions Inc.'s Subash Dhar
Superfinishing of HVOF Applied Tungsten Carbide CoatingsAMS2452 (Current)7/15/2019
This specification covers requirements for the superfinishing of High Velocity Oxygen/Fuel (HVOF) applied tungsten carbide thermal spray coatings.
AMS B Finishes Processes and Fluids Committee
Isolation and Corrosion Protection of Dissimilar Materials, Carbon Composite Structure RepairARP4118B (Current)7/9/2019
This SAE Aerospace Recommended Practice (ARP) provides methods and guidelines for isolating dissimilar repair patch materials from carbon fiber reinforced plastic (herein also referred to as carbon composite) structure during a repair operation.
AMS G9 Aerospace Sealing Committee
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