ASTM E1555-03
(Specification)Standard Specification for Structural Paste Adhesive for Sandwich Panel Repair
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.
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 and core to core 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.
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Designation: E 1555 – 03
Standard Specification for
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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 (e) 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 D2919 Test Method for Determining Durability of Adhe-
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sive Joints Stressed in Shear by Tension Loading
1.1 This specification defines those characteristics that are
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E4 Practices for Force Verification of Testing Machines
required of adhesives to be used in the repair of sandwich
E864 Practice for Surface Preparation ofAluminumAlloys
panels for durable, rigidwall, relocatable structures.
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to Be Adhesively Bonded in Honeycomb Shelter Panels
1.1.1 This specification covers two-part epoxy adhesive
E1091 Specification for Nonmetallic Honeycomb Core for
suitable for bonding aluminum alloy facings to nonmetallic
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Use in Shelter Panels
core and core to core in the repair of durable rigidwall
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2.2 Federal Specifications:
relocatable structures. The adhesive shall be suitable for
QQ-A-250/8d Aluminum Alloy 5052 H34 Plate and Sheet
forming bonds that will withstand exposure to temperatures
QQ-A-250/11d Aluminum Alloy 6061 T6 Plate and Sheet
from−54 to 93°C (−65 to 199°F) and high relative humidity
MIL-STD-401 SandwichConstructionsandCoreMaterials;
andwillalsowithstandthecombinationsofstress,temperature,
General Test Methods
and relative humidity that are expected to be encountered in
service. The adhesive shall also be suitable for the bonding of
3. Material
panel inserts and edge attachments.
3.1 The adhesive shall be a two-part thermosetting epoxy
1.2 The values stated in SI units are to be regarded as the
paste containing no asbestos and when tested using the test
standard where only SI units are given, or where SI units are
methods described in Section 6, shall meet the requirements of
given first followed by inch-pound units; where inch-pound
Section 4. The adhesive shall not have a deleterious effect on
units are given first followed by SI units, the inch-pound units
thecomponentsbeingbondedovertherangeoftemperaturesat
are to be regarded as the standard.
which the adhesive will be used.
1.3 The following safety hazards caveat pertains only to the
testmethodsdescribedinthisspecification. This standard does
4. Physical Requirements
not purport to address all of the safety concerns, if any,
4.1 Working Characteristics:
associated with its use. It is the responsibility of the user of this
4.1.1 Application—The adhesive shall be suitable for appli-
standard to establish appropriate safety and health practices
cationtofacingsandcorematerials.Theadhesiveshallnotdrip
and determine the applicability of regulatory limitations prior
and shall not develop an overall average sag of 6.3 mm (0.25
to use.
in.) or more when tested in accordance with the procedures
2. Referenced Documents described in 6.7.
4.1.2 Adhesive Life—The adhesive, when mixed in 1-qt kit
2.1 ASTM Standards:
quantities in a standard quart paint can, allowed to sit for 30
B 209 Specification for Aluminum and Aluminum-Alloy
2 min at 23 6 3°C (73.4 6 5.4°F), and then used to prepare test
Sheet and Plate
specimens as prescribed in 6.1-6.3, shall still be able to deliver
D1002 TestMethodforApparentShearStrengthofSingle-
the lap shear property levels listed in Table 1 for the 23°C
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
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temperature test condition.
sion Loading (Metal-to-Metal)
4.1.3 The adhesive, when mixed in a quart kit and allowed
D1781 Test Method for Climbing Drum Peel for Adhe-
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to stand in ambient still air, shall not, as a result of an
sives
exothermic reaction, heat itself to a temperature of 49°C
(120°F) or above. This shall be performed in a chemical fume
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This specification is under the jurisdiction of ASTM Committee E06 on
Performance of Buildings and is the direct responsibility of Subcommittee E06.53
on Materials and Processes for Durable Rigidwall Relocatable Structures.
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Current edition approved April 10, 2003. Published May 2003. Originally Annual Book of ASTM Standards, Vol 03.01.
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approved in 1993. Last previous edition approved in 1998 as E1555–98. Annual Book of ASTM Standards, Vol 04.11.
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Annual Book of ASTM Standards, Vol 02.02. AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
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Annual Book of ASTM Standards, Vol 15.06. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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