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ASTM D6412/D6412M-99(2012)

(Specification)

Standard Specification For Epoxy (Flexible) Adhesive For Bonding Metallic And Nonmetallic Materials

Standard Specification For Epoxy (Flexible) Adhesive For Bonding Metallic And Nonmetallic Materials

ABSTRACT
The specification covers a two-part modified epoxy paste adhesive for bonding metallic and nonmetallic materials. The adhesive should be suitable for forming bonds that can withstand environmental exposure to a certain temperature range when exposed to an expected combination of stress, temperature, and relative humidity to be encountered in service. Two types of adhesive shall be classified according to composition. Type I which consists of two-part kits of liquid base and modified amide liquid accelerator. Type I is further subdivided into two grades: Grade 1 with low viscosity and Grade 2 with high viscosity. The other classification is Type II which consists of premixed, frozen, Type I, Grade 1 or Type I, Grade 2. Different tests shall be conducted in order to determine the following mechanical properties of the adhesives: room-temperature shear, high-temperature shear, low-temperature shear, room-temperature Shore D hardness, room-temperature T-peel, and outgassing characteristics such as total mass loss and vacuum condensable material.
SCOPE
1.1 The specification covers a two-part modified epoxy paste adhesive for bonding metallic and nonmetallic materials. The adhesive should be suitable for forming bonds that can withstand environmental exposure to temperatures from –184 to 82 °C (–300 to 180 °F) when exposed to an expected combination of stress, temperature, and relative humidity to be encountered in service.Note 1—When coordinated through the Department of Defense (DoD) and the National Aeronautics and Space Administration (NASA), this practice will be a direct replacement of MIL-A-82720 (OS), MIS-26872, and MSFC-SPEC-2037.  
1.2 The values stated in SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.  
1.3 The following precautionary statement pertains to the test method portion only, Section 8, of this specification:   This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
30-Sep-2012
ICS
49.025.50 - Adhesives
Technical Committee
D14 - Adhesives
Drafting Committee
D14.80 - Metal Bonding Adhesives
Current Stage
Ref Project

Relations

Replaces
ASTM D6412/D6412M-99(2005) - Standard Specification for Epoxy (Flexible) Adhesive for Bonding Metallic and Nonmetallic Materials
Effective Date
01-Oct-2012
Replaced By
ASTM D6412/D6412M-99(2020) - Standard Specification for Epoxy (Flexible) Adhesive For Bonding Metallic And Nonmetallic Materials
Effective Date
01-Jan-2020

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ASTM D6412/D6412M-99(2012) - Standard Specification For Epoxy (Flexible) Adhesive For Bonding Metallic And Nonmetallic MaterialsASTM D6412/D6412M-99(2012) - Standard Specification For Epoxy (Flexible) Adhesive For Bonding Metallic And Nonmetallic Materials
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ASTM D6412/D6412M-99(2012) - Standard Specification For Epoxy (Flexible) Adhesive For Bonding Metallic And Nonmetallic Materials
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D6412/D6412M −99(Reapproved 2012)
Standard Specification for
Epoxy (Flexible) Adhesive For Bonding Metallic And
1
Nonmetallic Materials
This standard is issued under the fixed designation D6412/D6412M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 The specification covers a two-part modified epoxy
A109/A109M Specification for Steel, Strip, Carbon (0.25
paste adhesive for bonding metallic and nonmetallic materials.
Maximum Percent), Cold-Rolled
The adhesive should be suitable for forming bonds that can
A167 Specification for Stainless and Heat-Resisting
withstand environmental exposure to temperatures from –184
Chromium-Nickel Steel Plate, Sheet, and Strip (With-
to 82 °C (–300 to 180 °F) when exposed to an expected
3
drawn 2014)
combination of stress, temperature, and relative humidity to be
B209 Specification for Aluminum and Aluminum-Alloy
encountered in service.
Sheet and Plate
NOTE 1—When coordinated through the Department of Defense (DoD)
D907 Terminology of Adhesives
and the National Aeronautics and Space Administration (NASA), this
D1002 Test Method for Apparent Shear Strength of Single-
practice will be a direct replacement of MIL-A-82720 (OS), MIS-26872,
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
and MSFC-SPEC-2037.
sion Loading (Metal-to-Metal)
1.2 The values stated in SI units or inch-pound units are to
D1876 Test Method for Peel Resistance of Adhesives (T-
be regarded separately as standard. Within the text, the
Peel Test)
inch-pound units are shown in brackets. The values stated in
D2240 Test Method for Rubber Property—Durometer Hard-
each system are not exact equivalents; therefore, each system
ness
must be used independently of the other. Combining values
D2393 Test Method for Viscosity of Epoxy Resins and
from the two systems may result in nonconformance with this 3
Related Components (Withdrawn 1992)
specification.
D2651 GuideforPreparationofMetalSurfacesforAdhesive
Bonding
1.3 The following precautionary statement pertains to the
test method portion only, Section 8, of this specification: This D3951 Practice for Commercial Packaging
D4142 Guide for Testing Epoxy Resins
standard does not purport to address all of the safety concerns,
if any, associated with its use. It is the responsibility of the user E595 Test Method for Total Mass Loss and Collected Vola-
tile Condensable Materials from Outgassing in a Vacuum
of this standard to establish appropriate safety, health, and
environmental practices and determine the applicability of Environment
2.2 National Aeronautics and Space Administration
regulatory limitations prior to use.
4
(NASA):
1.4 This international standard was developed in accor-
JSC Sp-R-0022 General Specification,Vacuum Stability Re-
dance with internationally recognized principles on standard-
quirement of Polymeric Material for Spacecraft Applica-
ization established in the Decision on Principles for the
tion
Development of International Standards, Guides and Recom-
MSFC-HDBK-527/JSC-09604 Material Selection List for
mendations issued by the World Trade Organization Technical
Hardware Systems
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
This specification is under the jurisdiction of ASTM Committee D14 on Standards volume information, refer to the standard’s Document Summary page on
Adhesives and is the direct responsibility of subcommittee D14.80 on Metal the ASTM website.
3
Bonding Adhesives. The last approved version of this historical standard is referenced on
Current edition approved Oct. 1, 2012. Published October 2012. Originally www.astm.org.
4
approved in 1999. Last previous edition approved in 2005 as D6412/D6412M – 99 Unless otherwise indicated, copies of the above documents are available from
(2005). DOI: 10.1520/D6412_D6412M-99R12. ant NASA installation library or document repository.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6412/D6412M−99(2012)
GSFC RP 1124 Outgassing Data for Selecting Spacecraft shallnothaveadetrimentaleffectonthesurfacesbeingbonded
Materials over the range of temperatures at which the adhesives will be
used.
NOTE 2—Copies of specifications, standards, drawings and publications
required by suppliers in connection with specific purchases should be
7.2 Qualification—The adhesive shall be qualifie
...

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ABSTRACT
The specification covers a two-part modified epoxy paste adhesive for bonding metallic and nonmetallic materials. The adhesive should be suitable for forming bonds that can withstand environmental exposure to a certain temperature range when exposed to an expected combination of stress, temperature, and relative humidity to be encountered in service. Two types of adhesive shall be classified according to composition. Type I which consists of two-part kits of liquid base and modified amide liquid accelerator. Type I is further subdivided into two grades: Grade 1 with low viscosity and Grade 2 with high viscosity. The other classification is Type II which consists of premixed, frozen, Type I, Grade 1 or Type I, Grade 2. Different tests shall be conducted in order to determine the following mechanical properties of the adhesives: room-temperature shear, high-temperature shear, low-temperature shear, room-temperature Shore D hardness, room-temperature T-peel, and outgassing characteristics such as total mass loss and vacuum condensable material.
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1.1 The specification covers a two-part modified epoxy paste adhesive for bonding metallic and nonmetallic materials. The adhesive should be suitable for forming bonds that can withstand environmental exposure to temperatures from –184 to 82 °C [–300 to 180 °F] when exposed to an expected combination of stress, temperature, and relative humidity to be encountered in service.
Note 1: When coordinated through the Department of Defense (DoD) and the National Aeronautics and Space Administration (NASA), this practice will be a direct replacement of MIL-A-82720 (OS), MIS-26872, and MSFC-SPEC-2037.  
1.2 The values stated in SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.  
1.3 The following precautionary statement pertains to the test method portion only, Section 8, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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5.1 The guide is to be used by anyone developing bonding or sealing requirements for specifications for manufacturing, maintenance or overhaul. This guide has been designed to be application specific for each bonding or sealing application, and allows the design engineer to rest assured that the product(s) or process(es) selected by the industrial or manufacturing engineer will be compatible with both the part material and the subsequent processes, such as adherend/substrate cleaning and preparation. It allows the industrial or manufacturing engineer to customize the selection of the adhesive or sealant product based on the materials of the parts being bonded or sealed, the conditions required for the subsequent process(es), environmental, cost, and health and safety concerns.
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ASTM F942-18(2023)e1(Guide)
Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures

SIGNIFICANCE AND USE
3.1 This guide is intended for use by material suppliers, aircraft transparent enclosure fabricators, airframe manufacturers, government agencies, and others that may become involved in the testing of transparent interlayer materials. These test methods provide data on both individual interlayer materials and material combinations commonly used in the fabrication of aerospace transparent enclosures and provide a means of evaluating the performance of one interlayer material against another.  
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SCOPE
1.1 This specification establishes minimum performance requirements for determining strength, aging, and working properties of expandable foam adhesives intended for bonding back surfaces of gypsum wallboards of all thicknesses to wood framing. Minimum physical and performance requirements are specified for all measured properties of adhesives and adhesive bonds.  
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1.10 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Standard Test Method for Drying Shrinkage of Mortar Containing Hydraulic Cement

SIGNIFICANCE AND USE
4.1 This test method establishes a selected set of conditions of temperature, relative humidity and rate of evaporation of the environment to which a mortar specimen of stated composition shall be subjected for a specified period of time during which its change in length is determined and designated “drying shrinkage.”  
4.2 The drying shrinkage of mortar as determined by this test method has a linear relation to the drying shrinkage of concrete made with the same cement and exposed to the same drying conditions.4 Hence this test method may be used when it is desired to develop data on the effect of a hydraulic cement on the drying shrinkage of concrete made with that cement.
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1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure).2  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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