ASTM E866-11
(Specification)Standard Specification for Corrosion-Inhibiting Adhesive Primer for Aluminum Alloys to Be Adhesively Bonded in Honeycomb Shelter Panels
Standard Specification for Corrosion-Inhibiting Adhesive Primer for Aluminum Alloys to Be Adhesively Bonded in Honeycomb Shelter Panels
ABSTRACT
This specification covers corrosion-inhibiting adhesive primers for use on aluminum alloys that are to be adhesively bonded in the fabrication of honeycomb sandwich panels for tactical shelters. When applied to a properly cleaned surface of aluminum alloy, the primer imparts corrosion resistance and forms a surface suitable for structural bonding and coating with shelter paint finishes. The primer shall be a pigmented liquid composed of a modified epoxy resin system, compounded so that it can be spray-applied to produce a continuous coating without the addition of any solvent. Uncured primers shall be tested for solids content, inhibitor content, storage stability, shelf life, color, sprayability, and curing properties. Cured films, on the other hand, shall be tested on adhesion to metal, impact resistance, pencil hardness, water resistance, environmental resistance, corrosion resistance, humidity aging, heat resistance, and low-temperature shock. Finally, bonded specimens shall be tested and conform to normal-, low-, and high-temperature lap shears, humidity-exposure lap shear, salt-spray exposure lap shear, and normal- and low-temperature floating roller peel strengths.
SCOPE
1.1 This specification covers sprayable, pigmented liquid primers for use on aluminum alloys that are to be adhesively bonded in the fabrication of honeycomb sandwich panels for tactical shelters. When applied to a properly cleaned surface of aluminum alloy, the primer imparts corrosion resistance and forms a surface suitable for structural bonding using adhesives complying with Specification E 865 and for coating with shelter paint finishes.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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Designation:E866 −11
Standard Specification for
Corrosion-Inhibiting Adhesive Primer for Aluminum Alloys
1
to Be Adhesively Bonded in Honeycomb Shelter Panels
This standard is issued under the fixed designation E866; 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 E864Practice for Surface Preparation of Aluminum Alloys
to Be Adhesively Bonded in Honeycomb Shelter Panels
1.1 This specification covers sprayable, pigmented liquid
E865Specification for Structural Film Adhesives for Hon-
primers for use on aluminum alloys that are to be adhesively
eycomb Sandwich Panels
bonded in the fabrication of honeycomb sandwich panels for
E1749Terminology Relating to Rigid Wall Relocatable
tactical shelters.When applied to a properly cleaned surface of
Shelters
aluminum alloy, the primer imparts corrosion resistance and
3
2.2 Federal Specifications:
forms a surface suitable for structural bonding using adhesives
QQ-A-250/8dAluminum Alloy 5052H34, Plate and Sheet
complyingwithSpecificationE865andforcoatingwithshelter
QQ-A-250/11dAluminum Alloy 6061T6, Plate and Sheet
paint finishes.
1.2 The values stated in SI units are to be regarded as
3. Materials and Manufacture
standard. The values given in parentheses are mathematical
3.1 The primer shall be a pigmented liquid composed of a
conversions to inch-pound units that are provided for informa-
modified epoxy resin system, compounded so that it can be
tion only and are not considered standard.
spray-appliedtoproduceacontinuousuniformcoatingwithout
1.3 This standard does not purport to address all of the
addition of solvent.
safety concerns, if any, associated with its use. It is the
4. Physical Requirements
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.1 The uncured primer must meet the requirements of
bility of regulatory limitations prior to use.
Table1.ThecuredprimermustmeettherequirementsofTable
2 and Table 3. These requirements shall be verified by tests
2. Referenced Documents
described in Section 5.
2
2.1 ASTM Standards:
4.2 Properties of Cured Film—When applied and cured in
B117Practice for Operating Salt Spray (Fog) Apparatus
accordance with 5.1.7, the cured film shall meet the require-
B209Specification for Aluminum and Aluminum-Alloy
ments of Table 2 and Table 3 when tested as specified in
Sheet and Plate
5.2-5.3.8.
D522Test Methods for Mandrel Bend Test of Attached
4.3 Storage Stability—Primer stored in accordance with the
Organic Coatings
manufacturer’s instructions shall meet the requirements of
D1002Test Method for Apparent Shear Strength of Single-
Table1andwhencuredinaccordancewith5.1.7shallmeetthe
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
requirementsofTable2andTable3whentestedasspecifiedin
sion Loading (Metal-to-Metal)
5.2-5.3.8.
D3167Test Method for Floating Roller Peel Resistance of
Adhesives
4.4 Shelf Life—The shelf life of the primer at 25 6 7°C (77
612°F)shallbeatleastfourdays.Afterfourdays,whentested
in accordance with 5.1.4, the primer shall be capable of
1
This specification is under the jurisdiction of ASTM Committee E06 on
meeting all of the requirements of this specification.
Performance of Buildings and is the direct responsibility of Subcommittee E06.53
on Materials and Processes for Durable Rigidwall Relocatable Structures.
4.5 Film Thickness—The film thickness for all tests shall be
Current edition approved May 1, 2011. Published May 2011. Originally
between 0.003 and 0.007 mm (0.0001 and 0.0003 in.).
approved in 1982. Last previous edition approved in 2005 as E866–05. DOI:
10.1520/E0866-11.
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. dodssp.daps.dla.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E866−11
TABLE 1 Physical Properties of Uncured Liquid Primer
months at 5°C (41°F). Test the sample for ability to meet the
Test Requirement requirements of Tables 1-3.
Solids content, % 10 ± 1 5.1.4 Shelf Life—Store a sample of the primer for four days
A
Inhibitor Content, % 15±3
at 25 6 7°C (77 6 12°F) and then tes
...
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:E866–05 Designation: E866 – 11
Standard Specification for
Corrosion-Inhibiting Adhesive Primer for Aluminum Alloys
1
to Be Adhesively Bonded in Honeycomb Shelter Panels
This standard is issued under the fixed designation E866; 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 sprayable, pigmented liquid primers for use on aluminum alloys that are to be adhesively bonded
in the fabrication of honeycomb sandwich panels for tactical shelters. When applied to a properly cleaned surface of aluminum
alloy, the primer imparts corrosion resistance and forms a surface suitable for structural bonding using adhesives complying with
Specification E865 and for coating with shelter paint finishes.
1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions
to inch-pound 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
B117 Practice for Operating Salt Spray (Fog) Apparatus
B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
D522 Test Methods for Mandrel Bend Test of Attached Organic Coatings
D1002 TestMethodforApparentShearStrengthofSingle-Lap-JointAdhesivelyBondedMetalSpecimensbyTensionLoading
(Metal-to-Metal)
D3167 Test Method for Floating Roller Peel Resistance of Adhesives
E864 Practice for Surface Preparation of Aluminum Alloys to Be Adhesively Bonded in Honeycomb Shelter Panels
E865 Specification for Structural Film Adhesives for Honeycomb Sandwich Panels
E1749 Terminology Relating to Rigid Wall Relocatable Shelters
3
2.2 Federal Specifications:
QQ-A-250/8d Aluminum Alloy 5052H34, Plate and Sheet
QQ-A-250/11d Aluminum Alloy 6061T6, Plate and Sheet
3. Materials and Manufacture
3.1 The primer shall be a pigmented liquid composed of a modified epoxy resin system, compounded so that it can be
spray-applied to produce a continuous uniform coating without addition of solvent.
4. Physical Requirements
4.1 The uncured primer must meet the requirements of Table 1. The cured primer must meet the requirements of Table 2 and
Table 3. These requirements shall be verified by tests described in Section 5.
4.2 Properties of Cured Film—When applied and cured in accordance with 5.1.7, the cured film shall meet the requirements
of Table 2 and Table 3 when tested as specified in 5.2-5.3.8.
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 May 1, 2005.2011. Published May 2005.2011. Originally approved in 1982. Last previous edition approved in 20002005 as E866–005. DOI:
10.1520/E0866-05.10.1520/E0866-11.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://dodssp.daps.dla.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E866 – 11
TABLE 1 Physical Properties of Uncured Liquid Primer
Test Requirement
Solids content, % 10 6 1
A
Inhibitor Content,%15 6 3
Color easily visible film
Sprayability film is of uniform thickness and color
A
Based on mass of nonvolatile content.
TABLE 2 Physical Properties of Cured Film on Primed Surfaces
Test Requirement
Adhesion to metal no cracking or loss of adhesion
Impact resistance no cracking or loss of adhesion (on either
...
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