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ASTM E1794-08

(Specification)

Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II Panels

Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II Panels

ABSTRACT
This specification covers two-part adhesives for bonding aluminum alloy facing to foam core, inserts, edge attachments, and other components of a Type II foam cored sandwich panels. The adhesive should be suitable for forming bonds that can withstand long-term exposure at specified temperatures, and different combinations of stress, temperature, and humidity expected to be encountered in service. The adhesive may be used for new production or depot maintenance. The adhesive shall be a two-part thermosetting epoxy paste containing no asbestos and, when tested, shall meet the following physical and mechanical property requirements: curing time, temperature, and pressure; mix ratio; storage life; adhesive life; room-, low-, and high-temperature shear; hot humidity exposure shear; and room-temperature salt spray exposure shear.
SIGNIFICANCE AND USE
This specification is intended to provide information on the properties of adhesives, and the test methods required to evaluate adhesives to be used in the production bonding of aluminum alloys to foam core materials for the manufacture of tactical shelters.
SCOPE
1.1 This specification covers two-part adhesives for bonding foam core sandwich panels. The adhesive may be used for new production or depot maintenance. The adhesive should be suitable for forming bonds that can withstand long-term exposure to temperatures from −55 to 93°C (−67 to 200°F) and also withstand combinations of stress, temperature, and humidity expected to be encountered in service. The adhesives shall be used for bonding aluminum alloy facing to foam core, inserts, internal aluminum framing members, and other components of a foam cored sandwich panel.
1.2 The values stated in SI units are to be regarded as the standard where only SI units are given or where SI units are given first followed by inch-pound units; where inch-pound units are given first followed by SI units, the inch-pound units are to be regarded as the standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-Oct-2008
ICS
83.180 - Adhesives
Technical Committee
E06 - Performance of Buildings
Drafting Committee
E06.53 - Materials and Processes for Durable Rigidwall Relocatable Structures
Current Stage
Ref Project

Relations

Replaces
ASTM E1794-03 - Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II Panels
Effective Date
01-Nov-2008
Referred By
ASTM E1801-21 - Standard Practice for Adhesive Bonding of Aluminum Facings in Foam and Beam Type Shelters
Effective Date
01-Nov-2008
Referred By
ASTM E1793-19 - Standard Practice for Preparation of Aluminum Alloy for Bonding in Foam and Beam Type Transportable Shelters
Effective Date
01-Nov-2008
Referred By
ASTM E1975-22 - Standard Specification for Shelter, Electrical, Equipment S-280/G
Effective Date
01-Nov-2008

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ASTM E1794-08 - Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II PanelsASTM E1794-08 - Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II Panels
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ASTM E1794-08 - Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II Panels
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REDLINE ASTM E1794-08 - Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II PanelsREDLINE ASTM E1794-08 - Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II Panels
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REDLINE ASTM E1794-08 - Standard Specification for Adhesive for Bonding Foam Cored Sandwich Panels (200°F Elevated Humidity Service), Type II Panels
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3 pages
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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:E1794 −08
StandardSpecification for
Adhesive for Bonding Foam Cored Sandwich Panels (200°F
1
Elevated Humidity Service), Type II Panels
This standard is issued under the fixed designation E1794; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E1749Terminology Relating to Rigid Wall Relocatable
Shelters
1.1 Thisspecificationcoverstwo-partadhesivesforbonding
3
2.2 Military Standard:
foamcoresandwichpanels.Theadhesivemaybeusedfornew
MIL-STD-202FTest Methods for Electronic and Electrical
production or depot maintenance. The adhesive should be
Component Parts
suitable for forming bonds that can withstand long-term
3
exposuretotemperaturesfrom−55to93°C(−67to200°F)and
2.3 Federal Specification:
alsowithstandcombinationsofstress,temperature,andhumid- QQ-A-250/11d Aluminum Alloy 6061 T6 Plate and Sheet
ity expected to be encountered in service. The adhesives shall
3. Terminology
be used for bonding aluminum alloy facing to foam core,
inserts, internal aluminum framing members, and other com-
3.1 Definitions—See Terminology E1749 for definitions of
ponents of a foam cored sandwich panel.
terms used in this specification.
3.2 Definitions of Terms Specific to This Standard:
1.2 The values stated in SI units are to be regarded as the
3.2.1 adhesive life—the maximum time that an adhesive,
standard where only SI units are given or where SI units are
when mixed in a prescribed quantity can set at a designated
given first followed by inch-pound units; where inch-pound
temperature, after which the adhesive, when used to prepare
units are given first followed by SI units, the inch-pound units
specimens, will deliver the required properties.
are to be regarded as the standard.
1.3 This standard does not purport to address all of the
4. Requirements
safety concerns, if any, associated with its use. It is the
4.1 Material—The adhesive shall be a two-part thermoset-
responsibility of the user of this standard to establish appro-
tingepoxypastecontainingnoasbestosand,whentestedusing
priate safety and health practices and determine the applica-
the test methods described in Section 6, shall meet the
bility of regulatory limitations prior to use.
requirements of Section 4. The adhesive shall not have a
2. Referenced Documents
deleterious effect on the components being bonded over the
2
range of temperatures at which the adhesive will be used.
2.1 ASTM Standards:
B209Specification for Aluminum and Aluminum-Alloy
4.2 Working Characteristics:
Sheet and Plate
4.2.1 Application—The adhesive shall be suitable for appli-
D1002Test Method for Apparent Shear Strength of Single-
cation to facings and foam core materials. The adhesive shall
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
be suitable for spray application to faying surfaces.
sion Loading (Metal-to-Metal)
4.2.2 Curing—The time, temperature, and pressure used to
E864Practice for Surface Preparation of Aluminum Alloys
cure the adhesive shall be within the range specified herein.
to Be Adhesively Bonded in Honeycomb Shelter Panels
4.2.2.1 Curing Time and Temperature—The adhesive, when
mixedinaccordancewiththemanufacturer’sinstructions,shall
meet the requirements of this specification when cured at a
1
This specification is under the jurisdiction of ASTM Committee E06 on
temperature of not more than 99°C (210°F) for 60 min, or
Performance of Buildings and is the direct responsibility of Subcommittee E06.53
on Materials and Processes for Durable Rigidwall Relocatable Structures. 107°C (225°F) for 45 min. The timing of the cure shall start
Current edition approved Nov. 1, 2008. Published December 2008. Originally
when the panel skins have reached the specified temperature.
approved in 1996. Last previous edition approved in 2003 as E1794–03. DOI:
10.1520/E1794-08.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Standards volume information, refer to the standard’s Document Summary page on Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
the ASTM website. www.dodssp.daps.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1794−08
The temperature for the cure shall be fully attained within 3 h min just prior to test. Stabilize the chamber used to test the
after the first applic
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E1794–03 Designation: E 1794 – 08
Standard Specification for
Adhesive for Bonding Foam Cored Sandwich Panels (200°F
1
Elevated Humidity Service), Type II Panels
This standard is issued under the fixed designation E1794; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This specification covers two-part adhesives for bonding foam core sandwich panels. The adhesive may be used for new
production or depot maintenance. The adhesive should be suitable for forming bonds that can withstand long-term exposure to
temperatures from−55 to 93°C (−67 to 200°F) and also withstand combinations of stress, temperature, and humidity expected to
beencounteredinservice.Theadhesivesshallbeusedforbondingaluminumalloyfacingtofoamcore,inserts,edgeattachments,
internal aluminum framing members, and other components of a foam cored sandwich panel.
1.2 The values stated in SI units are to be regarded as the standard where only SI units are given or where SI units are given
first followed by Englishinch-pound units; where Englishinch-pound units are given first followed by SI units, the Englishinch-
pound units are to be regarded as the standard.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
D1002 TestMethodforApparentShearStrengthofSingle-Lap-JointAdhesivelyBondedMetalSpecimensbyTensionLoading
(Metal-to-Metal)
E864 Practice for Surface Preparation of Aluminum Alloys to beBe Adhesively Bonded in Honeycomb Shelter Panels
E1749 Terminology of Relating to Rigid Wall Relocatable Shelters
3
2.2 Military Standard:
MIL-STD-202F Test Methods for Electronic and Electrical Component Parts
3
2.3 Federal Specification:
QQ-A-250/11d Aluminum Alloy 6061T6, 6061 T6 Plate and Sheet
3. Terminology
3.1 Definitions—See Terminology E1749 for definitions of terms used in this specification.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 adhesive life—the maximum time that an adhesive, when mixed in a prescribed quantity can set at a designated
temperature, after which the adhesive, when used to prepare specimens, will deliver the required properties.
4. Requirements
4.1 Material—The adhesive shall be a two-part thermosetting epoxy paste containing no asbestos and, when tested using the
test methods described in Section 6, shall meet the requirements of Section 4. The adhesive shall not have a deleterious effect on
the components being bonded over the range of temperatures at which the adhesive will be used.
1
This specification is under the jurisdiction ofASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.53 on Materials
and Processes for Durable Rigidwall Relocatable Structures.
Current edition approved April 10, 2003. Published May 2003. Originally approved in 1996. Last previous edition approved in 2000 as E 1794–00.
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1996. Last previous edition approved in 2003 as E1794–03.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
, Vol 02.02.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 15.06.
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E1794–08
4.2 Working Characteristics:
4.2.1 Application—The adhesive shall be suitable for application to facings and foam core materials. The adhesive shall be
suitable for spray application to faying surfaces.
4.2.2 Curing—The time, temperature, and pressure used to cure the adhesive shall be within the range sp
...

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1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This standard does not purport to address 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.  
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.

  • Standard
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  • Standard
    6 pages
    English language
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ASTM
ASTM E2004-18(Test Method)
Standard Test Method for Facing Cleavage of Sandwich Panels

SIGNIFICANCE AND USE
4.1 This test method determines the cleavage force required to peel stiff facings from the core of sandwich panels, and is used to determine how well the facing is bonded to the core. Test Method D1781 only works well with flexible facings. As a guideline, the cleavage test method would work better on sandwich panels that have facings with a bending stiffness (EI) of greater than approximately 27.3 lb-in2/inch width (3.09 kN·mm 2/mm width). This converts to approximately 0.032 in. (0.81 mm) 6061 T6 aluminum alloy, 0.023 in. (0.57 mm) steel, and 0.046 in. (1.18 mm) fiberglass facings.
SCOPE
1.1 This test method covers the determination of the cleavage force to peel stiff facings from sandwich panels.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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.  
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.

  • Standard
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  • Standard
    3 pages
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ASTM
ASTM D6753/D6753M-02(2023)(Specification)
Standard Specification for Coal Tar Adhesive

ABSTRACT
This specification covers coal tar adhesive with or without polymer modification suitable for brush, spray, squeegee and trowel application to coal tar built up and coal tar modified bitumen membrane roofings and flashings. The adhesive shall be classified as: Type I and Type II. Coal tar adhesive shall consist of a processed coal tar base, volatile solvents, mineral stabilizers, with or without polymer modifiers excluding asbestos, mixed to a smooth consistency. The following test methods shall be performed to conform with the requirements of the material: nonvolatile matter; water; ash; lap shear strength; and peel strength.
SCOPE
1.1 This specification covers coal tar adhesive with or without polymer modification suitable for brush, spray, squeegee, and trowel application to coal tar built-up and coal tar modified bitumen membrane roofings and flashings.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
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.  
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.

  • Technical specification
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