ASTM E1555-08

Standard Specification for Structural Paste Adhesive for Sandwich Panel Repair

ABSTRACT
This specification defines those characteristics that are required of adhesives to be used in the repair of sandwich panels for durable, rigid wall, relocatable structures. It covers two-part epoxy adhesive suitable for bonding aluminum alloy facings to nonmetallic core and core to core in the repair of durable rigid wall, relocatable structures. The adhesive shall be suitable for forming bonds that will withstand exposure to a certain temperature range and high relative humidity and will also withstand the combinations of stress, temperature, and relative humidity that are expected to be encountered in service. The adhesive shall also be suitable for the bonding of panel inserts and edge attachments. The adhesive physical characteristics such as adhesive life, curing, mix ratio, storage life, and mechanical properties shall be observed in order to determine its working characteristics. The following tests shall be conducted to determine certain mechanical properties: tensile lap shear test, flatwise tension test, climbing drum peel test, and durability test.
SIGNIFICANCE AND USE
Adhesives used in the repair of sandwich panels for durable, rigidwall, relocatable structures must have a combination of mechanical property levels and environmental resistance that will ensure long-term durability of the adhesive bonds when exposed to severe climatic exposures. In addition, these adhesives must have processability characteristics that permit their use in a variety of repair scenarios and environments.
This specification defines those characteristics that are required of adhesives to be used in the repair of sandwich panels for durable, rigidwall, relocatable structures.
SCOPE
1.1 This specification defines those characteristics that are required of adhesives to be used in the repair of sandwich panels for durable, rigidwall, relocatable structures.
1.1.1 This specification covers two-part epoxy adhesive suitable for bonding aluminum alloy facings to nonmetallic core, core to core, and core to perimeter aluminum extrusion frame in the repair of durable rigidwall relocatable structures. The adhesive shall be suitable for forming bonds that will withstand exposure to temperatures from −54 to 93°C (−65 to 199°F) and high relative humidity and will also withstand the combinations of stress, temperature, and relative humidity that are expected to be encountered in service. The adhesive shall also be suitable for the bonding of panel inserts and edge attachments.  
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 The following safety hazards caveat pertains only to the test methods described in 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: 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

Relations

• Replaces: ASTM E1555-03 - Standard Specification for Structural Paste Adhesive for Sandwich Panel Repair
• Effective Date: 01-Nov-2008

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:E1555 −08
StandardSpecification for
1
Structural Paste Adhesive for Sandwich Panel Repair
This standard is issued under the fixed designation E1555; 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 D1002Test Method for Apparent Shear Strength of Single-
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
1.1 This specification defines those characteristics that are
sion Loading (Metal-to-Metal)
required of adhesives to be used in the repair of sandwich
D1781Test Method for Climbing Drum Peel for Adhesives
panels for durable, rigidwall, relocatable structures.
D2919Test Method for Determining Durability ofAdhesive
1.1.1 This specification covers two-part epoxy adhesive
Joints Stressed in Shear by Tension Loading
suitable for bonding aluminum alloy facings to nonmetallic
E4Practices for Force Verification of Testing Machines
core, core to core, and core to perimeter aluminum extrusion
E864Practice for Surface Preparation of Aluminum Alloys
frame in the repair of durable rigidwall relocatable structures.
to Be Adhesively Bonded in Honeycomb Shelter Panels
The adhesive shall be suitable for forming bonds that will
E1091Specification for Nonmetallic Honeycomb Core for
withstand exposure to temperatures from−54 to 93°C (−65 to
Use in Shelter Panels
199°F) and high relative humidity and will also withstand the
3
2.2 Federal Specifications:
combinations of stress, temperature, and relative humidity that
MIL-STD-401Sandwich Constructions and Core Materials;
are expected to be encountered in service. The adhesive shall
General Test Methods
also be suitable for the bonding of panel inserts and edge
QQ-A-250/8dAluminum Alloy 5052 H34 Plate and Sheet
attachments.
QQ-A-250/11dAluminum Alloy 6061 T6 Plate and Sheet
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
3. Material
given first followed by inch-pound units; where inch-pound
3.1 The adhesive shall be a two-part thermosetting epoxy
units are given first followed by SI units, the inch-pound units
paste containing no asbestos and when tested using the test
are to be regarded as the standard.
methods described in Section 6, shall meet the requirements of
1.3 The following safety hazards caveat pertains only to the
Section 4. The adhesive shall not have a deleterious effect on
testmethodsdescribedinthisspecification. This standard does
thecomponentsbeingbondedovertherangeoftemperaturesat
not purport to address all of the safety concerns, if any,
which the adhesive will be used.
associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety and health practices
4. Physical Requirements
and determine the applicability of regulatory limitations prior
4.1 Working Characteristics:
to use.
4.1.1 Application—The adhesive shall be suitable for appli-
cationtofacingsandcorematerials.Theadhesiveshallnotdrip
2. Referenced Documents
and shall not develop an overall average sag of 6.3 mm (0.25
2
2.1 ASTM Standards:
in.) or more when tested in accordance with the procedures
B209Specification for Aluminum and Aluminum-Alloy
described in 6.7.
Sheet and Plate
4.1.2 Adhesive Life—The adhesive, when mixed in 1-qt kit
quantities in a standard quart paint can, allowed to sit for 30
min at 23 6 3°C (73.4 6 5.4°F), and then used to prepare test
1
This specification is under the jurisdiction of ASTM Committee E06 on
specimens as prescribed in 6.1-6.3, shall still be able to deliver
Performance of Buildings and is the direct responsibility of Subcommittee E06.53
on Materials and Processes for Durable Rigidwall Relocatable Structures.
the lap shear property levels listed in Table 1 for the 23°C
Current edition approved Nov. 1, 2008. Published December 2008. Originally
temperature test condition.
approved in 1993. Last previous edition approved in 2003 as E1555–03. DOI:
10.1520/E1555-08.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. 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
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E1555−08
TABLE 1 Tensile
...

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:E1555–03 Designation: E 1555 – 08
Standard Specification for
1
Structural Paste Adhesive for Sandwich Panel Repair
This standard is issued under the fixed designation E1555; 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 defines those characteristics that are required of adhesives to be used in the repair of sandwich panels for
durable, rigidwall, relocatable structures.
1.1.1 This specification covers two-part epoxy adhesive suitable for bonding aluminum alloy facings to nonmetallic core, core
tocore,andcoretocoreperimeteraluminumextrusionframeintherepairofdurablerigidwallrelocatablestructures.Theadhesive
shallbesuitableforformingbondsthatwillwithstandexposuretotemperaturesfrom−54to93°C(−65to199°F)andhighrelative
humidityandwillalsowithstandthecombinationsofstress,temperature,andrelativehumiditythatareexpectedtobeencountered
in service. The adhesive shall also be suitable for the bonding of panel inserts and edge attachments.
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 Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsdescribedinthisspecification. 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
2.1 ASTM Standards:
2
B 209Specification for Aluminum and Aluminum-Alloy Sheet and Plate
B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
D1002 TestMethodforApparentShearStrengthofSingle-Lap-JointAdhesivelyBondedMetalSpecimensbyTensionLoading
(Metal-to-Metal)
D1781 Test Method for Climbing Drum Peel for Adhesives
D2919 Test Method for Determining Durability of Adhesive Joints Stressed in Shear by Tension Loading
E4 Practices for Force Verification of Testing Machines
E864 Practice for Surface Preparation of Aluminum Alloys to Be Adhesively Bonded in Honeycomb Shelter Panels
E1091 Specification for Nonmetallic Honeycomb Core for Use in Shelter Panels
3
2.2 Federal Specifications:
MIL-STD-401 Sandwich Constructions and Core Materials; General Test Methods
QQ-A-250/8d Aluminum Alloy 5052 H34 Plate and Sheet
QQ-A-250/11dAluminum Alloy 6061 T6 Plate and Sheet
MIL-STD-401Sandwich Constructions and Core Materials; General Test Methods AluminumAlloy 6061 T6 Plate and Sheet
3. Material
3.1 The adhesive shall be a two-part thermosetting epoxy paste containing no asbestos and when tested using the test methods
describedinSection6,shallmeettherequirementsofSection4.Theadhesiveshallnothaveadeleteriouseffectonthecomponents
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 1993. Last previous edition approved in 1998 as E1555–98.
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1993. Last previous edition approved in 2003 as E1555–03.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail] 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.
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E1555–08
4. Physical Requirements
4.1 Working Characteristics:
4.1.1 Application—The adhesive shall be suitable f
...